Author: thewindowdog

There’s Still Time: Don’t Miss the 2025 Tax Credit for Energy-Efficient Windows & Doors

If you’ve been thinking about replacing your windows or upgrading your exterior doors, here’s some good news: the federal tax credit for energy efficient windows and doors is still available in 2025. The catch? This program is ending soon and it is not likely to be extended.

Let’s break down how it works, what qualifies, and why it makes sense to act now before the deadline arrives.

A Quick Background on the Tax Credit

This credit comes from the Inflation Reduction Act of 2022, which expanded and extended several home energy efficiency incentives. Before that, there were smaller, short-term credits for windows and doors, but they came and went.

The current version—the Energy Efficient Home Improvement Credit—has been running for projects in 2023, 2024, and 2025. After that, the window (pun intended) closes.

Who Qualifies for the Window & Door Tax Credit?

  • Primary residences only – The home has to be your primary residence in the U.S.
  • Existing homes only – New construction doesn’t qualify. This is strictly for upgrades.
  • Owner-occupied – Renters generally can’t claim the credit, but landlords who live in part of the property might.
  • All housing types – Single-family homes, townhouses, condos, and manufactured homes can qualify if they meet the above rules.

So if you own your home and you’re replacing old windows or exterior doors, you’re likely eligible.

How Much Can You Save in 2025?

Here’s what the IRS allows for windows and doors:

  • Windows and skylights: 30% of the cost, up to $600 maximum per year
  • Exterior doors: 30% of the cost, up to $250 per door, $500 maximum total
  • Annual total cap: $1,200 for all qualifying improvements combined (except certain HVAC or heat pump projects, which fall under a separate $2,000 cap)

Example Scenarios:

  • Replace 4 windows for $2,000 → You’d save $600 (hit the cap).
  • Replace 1 exterior door for $1,000 → You’d save $250.
  • Replace 8 windows ($5,000) and 2 doors ($2,000) → You’d max out at $1,100 back.

Not life-changing money, but it’s real savings for work you might be planning anyway.

What Qualifies as “Energy Efficient”?

Not every product makes the cut. To qualify:

  • ENERGY STAR certified: Windows need to meet ENERGY STAR MOST EFFICIENT Version 7.0 performance criteria for your climate zone. (See the official ENERGY STAR product requirements here.)
  • U-Factor & SHGC requirements: These numbers measure heat transfer and solar gain. Lower numbers generally mean better efficiency.
  • Manufacturer certification: Your window company should provide documentation showing compliance.
  • QMID requirement: Starting in 2025, you’ll also need the Qualified Manufacturer Identification Number (QMID) for your tax return.

👉 Pro tip: Always ask your window company for the Manufacturer’s Certification Statement. That’s what proves your product qualifies.

For help picking the right model, check out replacement window reviews.

What’s Not Covered

  • Labor costs – Only the cost of the windows and doors themselves.
  • New builds or additions – Credit is for improvements, not new construction.
  • DIY installs – You can claim the credit if you install the windows yourself, but the savings only apply to the cost of the product, not your time or tools.

How to Claim the Credit

When you file your 2025 taxes (in early 2026):

  1. Save all receipts, invoices, and manufacturer certification statements.
  2. Make sure the paperwork lists the ENERGY STAR certification and QMID.
  3. Fill out IRS Form 5695 (Residential Energy Credits).
  4. Report the credit on your Form 1040.

👉 You can find IRS Form 5695 and official instructions here on the IRS website.

Tax software or your preparer will guide you through the process. It’s not difficult, but documentation is key.

Common Questions People Ask About This Tax Credit for Efficient Windows

Do all ENERGY STAR windows qualify for the tax credit?
No. They must meet the specific 2025 ENERGY STAR MOST EFFICIENT criteria for your climate zone.

Can I claim the tax credit every year?
Yes. The credit resets annually through 2025. If you replaced some windows in 2024 and more in 2025, you can claim both.

Does installation count toward the credit?
No. Only the product cost qualifies, not labor.

Can I claim the credit if I replace my windows myself?
Yes. As long as the products qualify and you have the manufacturer documentation, DIY installation is allowed.

Other Eligible Home Improvements in 2025

Windows and doors aren’t the only upgrades covered. The Energy Efficient Home Improvement Credit also applies to:

  • Insulation
  • Exterior siding (if it improves efficiency)
  • Heat pumps
  • High-efficiency HVAC systems
  • Water heaters
  • Certain electrical panel upgrades

If you’re planning multiple projects, you could stack your savings within the annual $1,200 cap.

Why Energy Efficiency Pays Off Beyond the Tax Credit

The tax credit is a nice perk, but the real value comes from:

  • Lower utility bills – Energy efficient windows reduce heating and cooling costs.
  • More comfortable living – Fewer drafts and more consistent indoor temps.
  • Increased home value – Buyers like homes with updated windows and low utility costs.
  • Noise reduction – New windows can make your home much quieter inside.

For more details on the long-term benefits, learn how efficient windows reduce energy use at Energy.gov.

If you’ve been putting off a project, think of the credit as icing on the cake.

Why You Shouldn’t Wait

  1. The credit ends December 31, 2025 and is not likely to be extended.
  2. Contractors get busy. Don’t wait until fall, when installers are booked solid.
  3. Energy bills won’t wait. Every season you delay is another season of higher heating or cooling costs.

Choosing the best window installation company is just as important as the windows themselves, so give yourself time to find the right partner.

Final Thoughts

Replacing windows and doors is one of the smartest investments you can make in your home. With the federal tax credit still available in 2025, you have a great opportunity to save money now and for years to come.

But remember: the deadline is firm this tax credit expires December 31, 2025. Don’t wait until it’s too late.

👉 If you’re ready to get started, check out our guide on how much windows should cost or jump right into our listing of the best window companies all over the country.

The Best Window Company in St Louis – Zen Windows!

We know our readers in St Louis are looking for great windows installed by a great company which is why I’m happy to recommend my friend my friends Dennis and Rhonda, the owners of Zen Windows in St Louis.  If you’re looking for the best window company in St Louis Dennis and Rhonda are the folks for you.

best window company in st louis
Here are Dennis and Rhonda looking all professional standing by ready to help get you new windows.

Zen Windows operates just the way you’d want a window company to operate.  They can give you a quote in 5 minutes, they don’t send a salesperson to your house and you can work directly with the owner to make sure your project turns out great.

If you’re looking for the best window company in St Louis or any of the surrounding area you should definitely give Zen Windows a look.

Dennis and Rhonda will be publishing guest posts as their company has become a supporter of our site and they’re working hard to make the window business easy for folks in St Louis.

How did they get into the window business?

Glad you asked!  Both of them have been in the home building and remodeling business in St Louis for years.  Of course neither of them like being on the either end of the high pressure sales process so when they heard about the Zen Windows business model they knew it was a great fit for them.

Luckily for all of you in St Louis the business is booming and they’re making the process of buying new windows absolutely as easy as possible.

How do they make the process easy?

They do many things differently than a traditional window company. For one, they don’t need to come to your house and camp out in your living room to get you a detailed quote for your project.  You can send them and email or give them a ring and they’ll explain how things work.  It’s really easy.

What areas do they service?

They offer great windows in all of the St Louis metro area.  To find out if they cover your area just send them an email, the address is below and they’re very friendly.  I promise.

What is the special offer for our readers?

Our readers get a FREE PREMIUM GLASS UPGRADE!

Let the folks at Zen Windows know you found them on our site and you’ll receive a premium glass upgrade completely free. This is a great value and you can take advantage of this offer right away.

How can I reach them?

You can find their website here and when you’re ready to get in touch there are two easy ways.

  1. You can send him an email at Dennis@ZenWindows.com
  2. You can fill out the form below and your info will go straight to them.  We do NOT share this info with anyone.

 

Andersen 400 Series Window Review

The Andersen 400 Series windows are not great. Let’s find out why.

These are windows we installed for a good friend of mine.  He picked them out and was sure that these were the windows for him.  Shortly after they were installed he painted them himself and they sure do look pretty.  When writing this review of Andersen 400 series windows I will be including pictures, pricing information and specific details.

What are the advantages of Andersen 400 Series windows?

For starters the Andersen 400 series windows look great.  They look like nice wood windows.  Once they’re painted to match the interior trim they certainly do look like part of the house rather than something that was installed after the house was built (you can just ignore the interesting paint colors that were picked on this project).

Next, another positive attribute of the Andersen 400 series is the tilt latch mechanisms.  The sashes tilt in for easy cleaning like many new windows do these days.  The way they operate is a little unique.  Andersen has skipped the typical tilt latches on the meeting rail and opted for nearly invisible plastic clips that release the sash.  This is a design that is also seen on other Andersen windows and it is very effective.

Andersen 400 series review
This is the mechanism that releases the sash on these Andersen 400 series windows

As you can see in the picture, all you do is slide the plastic clips down to the top of the sash and pull it in.  This is a neat feature of the Andersen 400 series tilt-wash double hung model.  You don’t find this mechanism from any other manufacturers.

What about the top sash?

The top sash, shown above, is even easier.  It has the more traditional tilt latch mechanism on the top of the top sash.  They do it this way because these latches are invisible when the window is closed.

These mechanisms give the window the ability to tilt in while maintaining the traditional look of a wood window.  Perhaps it’s a small detail, but it does make the window look great and operate well.

The exterior of this Andersen 400 series window is vinyl clad and the exterior trim has been capped as you can see here.  This leaves the exterior completely finished and maintenance free.  Some folks prefer the look of wood brickmould or exterior trim and that would be an option, but it would then require painting.  This homeowner wanted to go maintenance free and he achieved his desired result.

What are the downsides?

After living with these windows for a while some less than positive attributes of the Andersen 400 series have come into focus as well.  For example, it’s clear that the owner ordered these windows unfinished and painted them himself.  That means you can see areas where he was not able to get the brush.  To get it perfectly finished he’ll need to go back and repaint all of these windows to get them looking great and that’s a chore.

Next, you can see the interior grids on these windows.  They are flimsy and they bend when you try to pull down the top sash.  We opened the windows from the top to get a picture of the tilt latch and we almost broke one.  There is no other way to lower the top sash which means at least some will likely break in the future.  This design alone is a serious shortcoming.

Last and certainly not least, these windows are drafty!  When I was sitting on the couch during a winter storm sorting through the pictures to make sure I had everything I needed.  I could feel cold air on the back of my neck coming from the window behind me.  I pulled up the air infiltration ratings for this model and they say it’s <0.30.  We know from the previous post on air infiltration ratings that this is pretty weak.

To sum it all up: this is a nice looking window.  The specifics of the windows installed in this house are just details.  For example the flimsy looking interior only grids are an option and you could order another type.

What about the air infiltration of Andersen 400 series windows?

The air infiltration on the other hand is a real problem.  These windows are drafty and there is no way to change that.  You don’t want to spend thousands of dollars for new windows to have a cold family and these windows just don’t provide a good seal.  After observing these windows for a few months I can’t recommend them.  Our good friend will be replacing these relatively new wood windows with another model that gets a much tighter seal.

The Andersen 400 series windows look great, but they do not seal well.  If your goal was to look pretty with no concern for anything else then go for it.  Most folks want a balance of beauty and efficiency.  This window does not accomplish that goal.

If you’re looking for a window company right now, the best advice we have is to check out our list of the best window companies all over the country.  You can find it right here. 

Other Andersen window posts you might find helpful:

How can you find a great window company?

That part is easy.  Check this section for recommendations of window companies all over the country. There’s no better way to get new windows.

Alside Fusion Windows Review

The Alside Fusion windows are the newest offering from Alside. We were one of the first sites to get our hands on a sample of this new product. We’re thankful for the opportunity to write one of the first reviews of the Alside Fusion window. As The Window Dog continues to grow we’re always amazed by the recognition we’re seeing inside the industry. Anyway, back to the review…

Why does the Alside Fusion window exist?

This model replaces the older Centurion and Geneva products which were certainly ready to be put out to pasture. Some might say that this product update is long overdue, but it is a welcome addition to the Alside windows line.

It’s important to remember that this product is intended to be a lower-end offering. It’s not nearly as nice as the Alside Mezzo model that is much nicer. The Alside Fusion model was not designed to be a top quality product and it accomplishes the goal. Any “low-end” replacement window is designed and built for the extremely price sensitive shopper. It’s important to keep that in mind when deciding whether or not this is the right window for you.

Alside Fusion double hung replacement windows
Here’s a pretty picture of the Alside Fusion window.

This product was designed for a house flipper, a landlord

With that in mind it’s a decent window, but certainly not the best replacement window on the market.

It’s clear that Alside didn’t spend a significant amount of energy engineering a new product from the ground up. They basically retooled the now discontinued Alside Excalibur window to cut some cost out of it and rebrand it as a new, cheaper product.

The Alside Excalibur had been the most popular replacement window in the company’s lineup for many years, with millions of units installed across the country every year. That means Alside knew they would need to continue producing that model for warranty work for many years to come. Since they were going to be making these windows anyway they might as well make them share parts with the newer Fusion mode. That was a smart idea.

There are only a handful of changes in this new Alside Fusion product. I would guess the need to produce warranty parts for Excalibur windows was the reason for that.

Changes include:

  • Switching from double strength to single strength glass
  • Switching from heavy duty screen frames to lighter roll formed frame
  • Removing balance covers

Basically if you took an older Alside Excalibur window and installed thinner glass, a cheaper screen and removed the balance covers you’d have a NEW Alside Fusion window. Genius.

Does this mean it’s a bad product?

Absolutely not, but it certainly isn’t a great product either. The design is old and the ratings aren’t stellar. Remember, it’s not designed to be the greatest thing since sliced bread. It’s designed to be a price point product and that’s exactly what it is.

Alside Fusion Replacement Windows

So what’s the price of an Alside Fusion window?

As with everything in the replacement window business the retail pricing is determined by the company that will be installing them. Your mileage may vary, but here’s how we would expect the pricing to work.

The actual wholesale cost difference between a window like the Alside Fusion and a nicer product like the Alside Mezzo window is likely only going to be around $20-30. You’re likely going to see a much greater price difference when you actually get quotes. It’s likely that many replacement window companies will try to use the two different models to up sell the Mezzo window and increase their margins. I’d expect that you’ll see retail price differences in the neighborhood of $50 to $100 or even more.

Post a comment below to let us know what sort of retail prices you’ve seen for Alside Fusion windows.

Why you should never buy Alside Fusion windows

In this section we’re typically writing about what a competing salesperson might say about these windows. In this case I might agree with that salesperson.

Overall these window are just not great. They’re a low end option with low end features. The long and short of it is that you’ll be happier paying just a little more for the nicer models.

If you really just need the absolute basics this is probably a better cheap option than you’ll find from other manufacturers, but don’t be cheap. You’re going to have the windows for decades, get something decent.

What about the Alside Fusion window warranty?

The new Fusion window is covered by a pretty comprehensive warranty as are all of the Alside replacement windows. Remember, when assessing the value of a warranty that a large and well established company like Alside is very likely to be around for the long haul.

Alside Fusion Window Warranty

Some of the smaller window manufacturers like Gorell and others that have gone out of business in recent years leaving their customers with no warranty at all. That’s why we suggest working with a larger manufacturer like Alside.

The Alside Fusion windows come with a lifetime warranty. It covers the frames, the glass, even the seal between the panes of glass.

It does not cover labor for more than 1 year so you’ll want to watch out for that.

If the house is a rental there are other limitations as well. We company get questions about exactly what is covered by the warranty. Your best bet is to just read the warranty itself to see what is covered and what is not.

If you have Alside Fusion windows and you’d like to file a warranty claim you can do that through the Alside website here.

What colors are available for Fusion windows?

Remember, this is a low end window so it only offers low end options. The Fusion windows are only available in white or beige.

Alside Fusion available colors.

If you’re looking for other color options you’ll need to look at the nicer window models, including several from Alside.

Do Alside Fusion windows qualify for federal tax credits?

No. These windows don’t allow for triple pane glass and as a result there is no efficiency package that would qualify for tax credits. If you’re looking for a window that can meet that criteria you’ll want to check out the Alside Mezzo or 8000 Series windows.

What are the 3 common mistakes people make?

The first mistake people make when considering these windows is focusing too much on the price.

We know the price is important, but the windows will be in the house for decades. Buying a cheap window like this is a mistake in my opinion. You’ll have these windows long after you’ve forgotten the price and you’ll be dealing with problems.

The second mistake is buying directly from an installer

Reputable window companies won’t be offering a low-end model like this for an important reason. They don’t want to deal with the problems you’re going to have.

We’d guess the only person selling these windows will be a handyman type or someone who is not a real window specialist. If someone is suggesting these windows you’re getting bad advice, but you’re also potentially getting bad service.

I know your window guy could be a friendly guy who you might not mind having a beer with. The problem is a small outfit like that could well be gone in 5 years and you’ll still have those windows. You’ll be much better off buying from an actual business that is more likely to be around for the long haul.

Find our recommendations for great window companies here.

The third mistake is not focusing on efficiency

These windows are not very energy efficient. The air infiltration rates are high and the glass package options are limited. Efficiency is more important today than it was 10 years ago and it will be more important 10 years from now than it is today. Our advice is to get a better window.

So what’s the verdict?

Basically the Alside Fusion product is designed to be a low cost option. It’s a fine product for a house flipper or a landlord, but that’s about all it’s good for. If you’re living in the house and planning to be around for a while we think you can get a much better bang for your much with an upgraded product.

If you’re looking for a window company right now, the best advice we have is to check out our list of the best window companies all over the country. You can find it right here.

The companies listed there will be able to offer higher quality options, often at very similar prices. There’s really no need to deal with a low end product like this and any company suggesting it is probably not a company you want to work with. Find the listings for the best window companies in the country right here.

Alside Mezzo Windows Review

Alside Mezzo windows are designed to be a middle of the road option and they accomplish that goal. In fact, Mezzo means medium in Italian so it seems they were shooting for the middle when designing the Mezzo model.

This newly designed window addresses many of the shortcomings of the (now discontinued) Alside Excalibur window.

Disclaimer: We do occasioanlly offer Alside windows and other higher end windows (almost) nationwide either for you to install yourself or with professional installation. We do it all with no in-home salespeople. Details here. 

While the Alside Mezzo windows use a newer design than many of their competitors, Alside has been around for quite a while. They’re a large US manufacturer. They have 5 US window manufacturing plants and their products are very widely distributed.

Alside Mezzo double hung windows with slim frames

Advantages to Alside Mezzo windows

  • Slim frames to maximize light
  • Low air infiltration rates for a tight seal
  • Many color options available
  • Lifetime warranty backed by large manufacturer
  • Can qualify for federal tax credit

As you can see in the picture below, the Alside Mezzo windows have a slim frame to maximize the glass area. This is a factor we’ve repeatedly mentioned in our replacement window reviews. This is an important factor that is often overlooked by consumers.

Alside mezzo window reviews
Notice the slim frame of the Alside Mezzo windows.

In comparison, many other replacement windows will use thicker frames. This means the thicker window will provide less glass area in the same opening. That is something that is very important to many window shoppers.

The Alside Mezzo window is designed to be the workhorse of their replacement window line. It will likely become the most popular window they offer.

What are the Mezzo color options?

Like just about all vinyl replacement windows the Alside Mezzo window is custom made. As a result, the range of available options is pretty substantial.

They currently offer 13 exterior colors and 9 interior color options.

All combinations of interior and exterior colors are not available. It’s also important to note that far fewer colors are available in the west coast Mezzo model. You’ll want to talk to your salesperson about the options before you fall in love with an option that doesn’t exist.

They’ve recently added a black exterior option as that has become increasingly popular. The exterior color options do come with an additional cost and they look beautiful.

High quality screens

Alside has always offered a very high quality screen standard with their windows and they’ve continued that with the Mezzo. As you can see below, the screen is made of heavy duty extruded aluminum. In addition, the spline is on the inside to keep it out of the sun. The result is a screen that is more durable and better looking than most.

alside mezzo windows reviews
Alside Mezzo windows come with a heavy duty screen standard.

How about energy efficiency?

The Alside Mezzo window can produce pretty solid ratings for a double hung window. They are in line with other recently designed double pane windows and a solid step above previous generation products. For example, the Alside Mezzo window can meet or exceed the Energy Star guidelines. They can do this  in all regions of the country with double pane glass.

As time has gone on these windows are still available to meet or exceed current energy star most efficient guidelines.

Do Mezzo windows qualify for federal tax credits?

Yes, they can. In order to qualify you’ll need to order windows with the Climatech PriME glass package. While the capitalization they use is ridiculous these packages are very efficient and will qualify for tax credits in most cases.

The PriME packages will be triple pane glass packages and they’re some of the most efficient options on the market. We commonly recommend these packages. We’ve written about the advantages of double pane vs triple pane glass here.

Alside Mezzo windows warranty

Newer vinyl replacement windows tend to come with pretty solid warranties and the Alside Mezzo windows are no exception. The Mezzo lifetime warranty is pretty robust and it is transferable to the next owner.

It is VERY IMPORTANT that you get a written installation warranty from whoever is installing the windows. Alside, like almost all manufacturers, covers the windows and manufacturing defects. This means they DO NOT cover the installations unless ordered through the manufacturers installation program.

The basics of the Mezzo window are very good. They cover the windows for as long as you own and live in the house. The warranty covers seal failures (the most common warranty issue) along with the frames, the hardware, etc.

If you have Alside Mezzo windows and you’d like to file a warranty claim you can do that here. They’ll want basic info about your windows and your house. in my experience they handle the warranty process pretty well. If you have any trouble with your warranty or the warranty process post a comment below.

If you’re interested in ordering the Mezzo windows online we can help you with that here. We’ll send prices and info by email with no pushy in-home salesman.

Alside Mezzo windows cost

The retail price of Alside Mezzo windows depends on the company that is selling them. Alside distributes these windows through an extremely large network of independent dealers. They will each set their own retail pricing.  Typical costs for windows like this would be in the range of $600-8000 depending on the options and colors chosen. Typical installation for Alside Mezzo windows would run in the range of $200-300.

best replacement windows of 2015

Some companies do try to charge quite a bit more for these products so remember to shop around if you’re unsure. There is really no reason to pay more than $1500-2000 for a typical vinyl replacement window. For example a basic white custom made double hung window with professional installation can typically be found for around $900-1200.

alside mezzo windows reviews and cost
Note the slim frame and the new contemporary locks of the Alside Mezzo windows.

We do hear from readers who have received quotes for quite a bit more. It may surprise you to learn there are companies out there charging pretty ridiculous prices for windows. One easy way to make sure you’re getting a reasonable quote is to talk with our recommended companies. You can also get a window quote review here.

Why you should never buy Alside Mezzo windows?

You’ll find there is always a competitor who will tell you why another other than what he’s selling is horrible. This is true no matter what window mode you’re considering. Here we’ll look a what the competitor will probably say (and why he’s wrong).

First, they may say Alside windows are “builder grade” or “contractor grade” or anything else along those lines. You should know this terminology is completely made up. It’s just fake. Anyone who uses terms like this is just messing with you.

Next, they may say that Mezzo windows use fuzzy pads to achieve good air infiltration rates. This is also nonsense. The Mezzo windows do achieve good air infiltration rates and that’s because they provide a good seal.

Competitors used to use air infiltration rates to justify their high prices and that’s changed a little bit as more and more windows offer better ratings. If you’re hearing this story you’re hearing from a salesperson who is desperate to make his commission.

Finally, you might hear that the Alside window frames are too thin or aren’t strong enough. This is also not really based in reality. Slim frames are generally a feature as they can allow for more glass area than a similar window with a thicker frame.

The guy selling the windows with thick frames needs to tell you something so he’ll usually talk about strength. Remember, you could take all of the windows out of your house and it wouldn’t fall over. The windows aren’t holding up the house.

They need to be strong enough to make sure the windows perform well and they’re tested to meet certain window and rain ratings. The windows all meet or exceed all common ratings so there’s no need to worry about strength, it’s just a distraction.

Problems with the Alside Mezzo windows?

One problem we see is the continued use of the constant force or coil balance system. This is in line with the workhorse nature of this product as it’s not designed to be the very top of the line (mezzo means middle in Italian). The constant force balances are a less expensive option so they do contribute to the competitiveness of the pricing. At the end of the day it’s not the option we would typically pick.

It’s clear they were not trying to make a top of the line product when designing the Mezzo window. That’s ok because many people want a product that is good, but not too expensive. The Mezzo window can fit that bill.

In addition, Alside has had a reputation for questionable quality control at times. Some of this talk is driven by competitors or those companies that offer competing products, but some of it is real. Alside tells us they have invested in new manufacturing equipment for the new Alside Mezzo windows so only time will tell if these past issues have been corrected.

What’s the biggest problem?

The biggest problem with Alside windows is the fact that they sell them through any “contractor” who wants to sell them. Other manufacturers are more discriminating, only selling to reputable and well established companies. Alside windows are sold by almost anyone which means the friendly guy offering these windows might not really know what he’s doing.

We see customers having problems with Mezzo windows that aren’t really window problems at all. They’re installation problems, and sometimes the customer doesn’t even know it.

If you’re considering buying windows from a handyman or a jack of all trades type of operation you might want to reconsider. Buying windows from a company that specializes in windows will be a much better solution.

Luckily, we have a listing of our recommended window companies all over the country right here.

Disclosure: Our company has never offered Alside windows in the past. With the release of the Mezzo window we now occasionally offer this Alside product under a new program we have recently started. We also offer upgraded products that will be a better value in most cases.

Find detailed reviews on more Alside window options here.

Remember, for more great window company info you can find our suggestions for the best local companies in your area right here.

TOP 4 Replacement Windows in Austin, TX

Here we find the BEST replacement windows in Austin, TX. We look at quality, warranty, prices, efficiency and more to find the best option available. With over 20 years of industry experience our industry experts can help make shopping for new windows easier than ever before.

#4 Simonton 5500 Reflections

The Simonton Reflections 5500 series comes in at number 4 on our list because it’s a decent option from a large manufacturer, but it falls short in a few key areas.

Simonton 5500 reflections windows reviews

Drawbacks

  • Thicker frames block more light
  • Coil balances
  • Higher air infiltration rates

There are significant drawbacks to this model that prevent it from rating higher on our list. For example the thicker frames will block more light. That means you get less daylight from the same sized opening in your house when compared with other models.

These windows also use coil style or “constant force” balance mechanisms which don’t always operate as well as the upgraded type used by other window models on our list.

Finally, the air infiltration rates for these windows are higher than what you’ll find from some of the other options on our list. This means the windows will let in more air when closed and locked. Obviously that’s not ideal.

Advantages

  • Solid warranty
  • Widely available
  • Can qualify for tax credits

There are still plenty of reasons that this model lands on our list at all. For example the warranty on these Simonton windows is pretty solid and backed by a very large manufacturer.

This brand is also very widely available so you can find them offered by many companies. That means if you don’t like one installation company you can find another. That’s not the case with every product line. However, this can be a double edged sword. Sometimes companies offering these windows might not be window experts.

Unfortunately this can also mean that the companies installing these windows might not be window experts.

Finally, they do now offer efficiency packages that can qualify for the federal tax credits. Not every window can do that.

Find our full Simonton 5500 window review here.

#3 Alside Mezzo

The Alside Mezzo window is a popular option that can provide decent results for customers in Austin, TX. There are a few reasons that it doesn’t rank higher on our list.

Alside Mezzo windows reviews

Drawbacks

  • Cheaper constant force balances
  • Offered by inexperienced companies

Mezzo means medium in Italian and it seems that Alside was trying to produce a medium grade window when they designed this product. It does have some things in common with the number one option in this list but there are a few factors keeping it at number 3 on our list.

For example, they used the cheaper hardware and components in the Mezzo model. To us that’s an example of the fact that they didn’t want this product to compete with other higher end window options.

Also, Alside windows are generally available to anyone who calls themselves a contractor which means they’re often not installed by window experts.

For example, long ago we did some warranty inspections for Alside and you wouldn’t believe the silly things we’d see in the field. It’s just a fact that these windows are often installed by independent installers or contractors. Think “Bob’s Windows, Siding, Roofing and Driveway Sealing”. Companies like this often don’t really know what they’re doing and it can be a real problem.

Find our full Alside Mezzo window review here.

#2 Renewal by Andersen

Readers of the site might be surprised that Renewal by Andersen would rank so high on our list of the best replacement windows in Austin. The truth is these are perfectly nice windows. They look great and they perform well. However, in our opinion, the downsides are real and should not be ignored.

Renewal by Andersen reviews

Drawbacks

  • Higher prices
  • Pushy sales tactics
  • Limited warranty

The windows from Renewal by Andersen do look very nice and the Andersen name is familiar to many. The downsides to this product line, in our opinion, generally have more to do with the way they’re sold, and the prices that are charged.

Over the years we’ve heard from many readers who shared their experiences. With retail prices of $1,500 – $2,000 per window, or higher, it’s hard to see how these windows represent a very good value.

We also heard many stories about very high prices then extreme discounts if you buy today. This is basically never a good sign and it’s generally our advice to not reward companies who operate this way.

The warranty is decent and it is backed by a very large and stable company. That’s positive. There are some parts of the warranty that are shorter than you’ll see from other companies. That’s not necessarily bad, but it’s important to be aware of. For the price you pay for these windows you’d expect them to last basically forever but the warranty is not a lifetime warranty.

The products themselves are beautiful. The quality is solid and the installation is likely to be done well. If the look is the most important factor and the price doesn’t really matter this could be a decent choice. For most people we don’t think this is the best value around.

Find our full review of Renewal by Andersen windows here.

#1 Replacement window in Austin – Gentek Signature Elite

The Signature Elite window from Gentek tops our list of the best replacement windows in Austin, TX for a variety of reasons.

Gentek Signature Elite windows

Advantages

  • Slim frames to maximize light
  • Durable materials to stand up to the Austin weather
  • Upgraded hardware and components for added durability
  • Lifetime warranty from a large manufacturer
  • Wide range of efficiency and tax credit options
  • Wide range of interior and exterior color options

This is a product that we have substantial experience with and it is easy to recommend. The slim frames provide for more glass area in the same size opening when compared with many other options.

The upgraded block and tackle balances are tested to last 2.5 times longer than the mechanisms used by many other companies. This is a part that you can’t easily see and most people don’t really know what it does anyway. By using the upgraded hardware Gentek is telling you that they’re producing a product that is designed to last.

Warranty

The warranty is another way you tell they expect this product to hold up well for a very long time. The windows come with a lifetime warranty that is good for as long as you own the house and it’s transferable when you sell the house. If you live in the house for 50 years that will turn into a very long warranty.

Importantly, the warranty is backed by a billion dollar nationwide manufacturing company that will presumably be around for the long haul. That’s not necessarily the case with many smaller manufacturers.

A wide range of available efficiency packages means you can can pick the option that makes sense for you. Whether you want to qualify for the federal window tax credits or you’re looking for a more basic option they’ll have a solution for you.

Finally, these windows are made with upgraded frames that can easily stand up to the heat and sun we have here in Austin.

Find our full review of the Gentek Signature Elite windows here.

The easiest way to buy replacement windows in Austin, TX

You can find these windows offered by Window Universe in Austin, TX. Quotes are available by email with no pushy salesperson. Pricing is itemized and a range of options are available. If you’re looking for replacement windows in Austin that’s the route I’d suggest.

At the very least you can get a quote by email to understand how the pricing works.

Replacement windows in Austin from Window Universe.

If you found this page, but you’re not in Austin you can find our list of recommended window companies all over the country here.

Vinyl windows vs fiberglass vs aluminum vs composite in Austin, TX

Is the weather too hot in Austin, TX for vinyl windows? Are composite windows better or are fiberglass windows the best? This is a question people ask all the time and we’re here to help you get to the bottom of it.

Here we’ll look at the advantages and disadvantages of different styles so you can make the best choice.

Fiberglass Windows Austin TX

If you’ve had a fiberglass window salesman in your house they’ve probably told you all sorts of things about these windows and about their competitors. Unfortunately some of what you’ve heard might not be exactly true.

Advantages of fiberglass

  • Look very nice

Notice the list of advantages is pretty short. Fiberglass windows look great, very much like wood windows, but that’s where the advantages end.

Disadvantages

  • Expensive
  • Not as efficient
  • Shorter warranties

The list of disadvantages is a bit longer. Fiberglass windows tend to be a fair bit more expensive that some other options. They’ll often, but not always, have higher (worse) air infiltration rates meaning they’re not as efficient. They’ll also sometimes have shorter warranties than other types.

Are fiberglass windows stronger?

Maybe, but this claim is a trick. If we took all of the windows out of your house it wouldn’t fall down. The windows aren’t holding up the house so they only need to be so strong. Once they’re strong enough a stronger window doesn’t add any value.

That’s why we don’t all drive around in bulletproof cars. Sure, they’re stronger than a regular car, but the added strength doesn’t provide any extra value so we don’t spend the money on that strength. Does that make sense?

Composite windows Austin, TX

Composite windows are very similar to fiberglass in terms of the advantages and disadvantages. They can look great, but they’re more expensive, often less efficient and the warranties are sometimes shorter.

If the look is the only thing that matters and the cost and efficiency are irrelevant to you then maybe composite windows are a good choice for your project. For everyone else they don’t make a ton of sense.

Vinyl windows in Austin, TX

Vinyl windows are the most popular type for a variety of reasons. When you compare the options vinyl will make the most sense for most people and that’s why vinyl windows make up a huge percentage of the total market.

Advantages of vinyl windows

  • More energy efficient
  • Better warranties
  • Best prices
  • Best durability

A higher end vinyl window will tend to be more efficient that other materials with better air infiltration rates too. These windows will also very commonly come with lifetime transferable warranties meaning the windows are covered for as long as you own the house and then the next owner is covered too.

The pricing for vinyl windows is often about half of the price of other materials which is a nice bonus.

Are vinyl windows strong enough to stand up to the sun in Austin?

Yes. Higher end vinyl windows have been used in this climate for many years with thousands being installed every year. They perform great. If a competing salesperson has told you anything else that person has tried to mislead you.

These are the reasons vinyl windows make up the vast majority of the market. People routinely evaluate the options and come to the same conclusion. Vinyl windows make the most sense for most projects.

How can I find a great replacement window company in Austin, TX?

That part is easy. Check out Window Universe in Austin for online quotes, no hassle pricing and professional installation. You can also find our list of recommended window companies all over the country here.

The Best Window Company in Denver – Zen Windows!

The weather in Denver can be beautiful and it can sometimes get a little extreme. If you live in this part of the world you’ll certainly want to find the best window company in Denver and I’m happy to recommend my friend Kyle. He owns Zen Windows in Denver and they do great work all over town.

Zen Windows works a lot like my company does which is why it’s easy for me to recommend them. They’ve been a sponsor of the site for a long time as they’re always working to make the window business better.

They make the process of buying new windows absolutely as easy as it can be. There are no pushy salespeople. In fact, there are no salespeople at all.

The goal is to help make shopping for windows easy for everyone. It’ll be easy to see why Zen Windows is the best window company in Denver.

best replacement window company in Denver Colorado

How did they become the best window company in Denver?

Kyle is a proud Colorado small business owner who knows the struggles you are going through when it comes to having a stress free purchasing experience. He got his start as a laborer for a remodeling company that specialized in high-end flooring installations. He quickly realized that contractors left much to be desired when it came to making the purchase of a product or service as simple as it should be.

Once he realized he could add a lot of value by simplifying the purchasing process he got to work finding industries that could benefit most from this discovery, which eventually led him window sales and installation. He was inspired to own and operate a window business because he wanted to help homeowners avoid the same painful processes that he had once been a part of and had experienced himself as a homeowner.

Kyle has successfully operated multiple businesses over the years, but his window installation business eventually became his sole focus. He realized by narrowing his services to windows he could provide a better overall experience to his customers. That is when Kyle found his “Zen” with Zen Windows™.

What areas do they service?

They offer great windows throughout the Front Range. Projects have ranged from Fort Collins to Colorado Springs. To find out if they cover your area just send Zen Windows an email, the address is below and they’re very friendly.  I promise.

How can I reach them?

You can find their website here and when you’re ready to get in touch there are 3 easy ways.

  1. You can give them a ring at 303-658-9990
  2. You can fill out the form below and your info will go straight to them.  We do NOT share this info with anyone.

Connect with Zen Windows in Denver, CO

Energy Star Windows Have CHANGED

Energy Star windows and doors will need to meet a tougher criteria effective October 23, 2023. We’ll explain the details right here.

The requirements have gotten tougher to meet, especially in the North and North Central zones.

What are the new requirements for Energy Star windows?

Here you can see the old requirements for Energy Star windows compared to the new requirements.

Requirements for Energy Star windows effective late 2023 into 2024.
Here you can see the old and new efficiency requirements for Energy Star windows.

For any window to be Energy Star certified it will need to have a U-Factor and a Solar Heat Gain Coefficient at or below the numbers listed.

The requirements are more stringent in all climate zones with the Northern and North Central numbers being harder for many companies to achieve with double pane glass. Most companies can reach these ratings with triple pane glass, but that will increase the cost of your project.

Is there a tax credit for Energy Star windows?

Not anymore. There is a new federal tax credit for windows, but the requirements have changed. In the past windows needed to be Energy Star certified to qualify, but now they need to meet the Energy Star Most Efficient criterial which is different.

Requirements for Energy Star Most Efficient windows.
Here are the Energy Star “Most Efficient ratings by climate zone. More info on the Energy Star website here.

That can be a little confusing and you can find more info on tax credits for energy efficiency windows here.

Are the Energy Star requirements the same for windows and for doors?

Yes. The requirements are the same, but the tax credit requirements are a little different. The short story is that the regular Energy Star levels do qualify doors for tax credits, but windows need to meet the more stringent “most efficient” criteria.

Refer to recent post about the federal tax credit for replacement windows for more info. It is a little tricky, but it’s a government program so what do you expect?

Does it matter if my new windows are Energy Star rated?

Not really. It can be a helpful benchmark to determine how efficient your new windows will be, but in reality a difference in U-Factor of 0.01 can make or break an Energy Star rating but doesn’t really make any difference in overall performance of your new windows.

A larger difference in efficiency ratings can make a real difference in the performance so it’s important to understand window efficiency ratings. This will help you compare one option to another. Window salesmen will often make all sorts of claims that aren’t based in reality so understanding the real ratings will go a long way to helping you make the right decision.

If you’re looking for a great window company in your area you can find our recommendations for local companies all over the country here.

Tax Credit for New Windows and Doors UPDATED 2025

The federal tax credit for replacement windows and doors is back! But, the requirements changed substantially in 2023, the potential benefit has gotten better and the whole thing is a little more complicated.

Many window salesmen don’t understand these programs so it’s important to make sure have the real information. We’ll get to the bottom of it right here.

Topics we’ll cover are:

  • Changes to federal tax credits for energy efficient windows
  • Requirements for tax credit for energy efficient doors
  • Tax benefit for purchasing energy efficient windows and doors
  • Cost increase for windows that qualify for the tax credits

Changes to federal tax credit for energy efficient windows and doors

Effective Jan 1, 2023 the requirements for tax credits for installing new efficient windows and doors have changed. The requirements are a more strict, meaning more efficient windows are required to get the tax credit.

In the past the windows just needed to meet the Energy Star criteria, but now the windows need to meet the Energy Star “Most Efficient” criteria which are substantially different.

Energy Star Most Efficient criteria for federal tax credits for replacement windows.
Here you can see the requirements for windows to meet the Energy Star Most Efficient criteria for eligibility for federal tax credits effective in 2023 and beyond.

As you can see in the graphic above, the Energy Star most efficient criteria are different in the different climate zones. This makes sense because someone in Arizona has different efficiency needs than someone in Maine.

In all areas of the country windows need a U-Factor of 0.20 or less to qualify. For most windows this means they’ll need to have triple pane glass. Even with triple pane glass many products still won’t qualify. They’ll likely need other upgrades as well.

The other criteria is Solar Heat Gain Coefficient or SHGC. That number needs to be at or below 0.20 in the Northern climate zone, 0.40 in the North-Central, 0.25 in the South-Central and Southern regions.

If you’re looking at new windows that meet both of those criteria then you’ll qualify for the new federal tax credit. You can find details about how much money you can save on your taxes below.

Tax credit requirements for doors are quite a bit different

Doors, including sliding patio doors, only need to meet the Energy Star 7.0 criteria as of October 23, 2023. Doors do not need to meet the Energy Star Most Efficient levels in order to qualify for tax credits.

Does the terminology seem a little confusing? It’s a typical government program, but it’s easy enough to figure out.

Energy Star 7.0 requirements for windows and doors.
Here are the Energy Star 7.0 criteria for windows and doors. Doors that meet these criteria will qualify for tax credits but windows that only meet this criteria will not. Windows need to meet the more stringent criteria called “Most Efficient”.

Doors only need to meet the Energy Star criteria, but effective October 23, 2023 those requirements are changing and getting a little harder to meet. Find more info on tax credits for doors from the Energy Star website here.

In the graphic above you can see the difference between the old Energy Star 6.0 criteria and the new Energy Star 7.0 criteria for doors. There are a few ways to meet this criteria in the Northern climate zone. The other zones are a little more straightforward.

What is the tax benefit for installing energy efficient windows and doors?

What do you get back from Uncle Sam when you buy energy efficient windows and doors? If you purchase qualifying products you’ll be eligible for federal tax credits for 30% of the cost of the new windows and doors with a $600 annual max for windows and a $500 annual max for doors.

As an example, let’s look at someone who bought 10 windows and a sliding patio door for $12,000. You’ll need to get an itemized invoice from your window company that will break out the cost of the door from the windows and separate the labor.

Let’s say the windows were $6,000, the door was $2,000 and the installation was $4,000.

This person would be eligible for 30% of the cost of the windows ($6000 x 0.30 = $1,800). The max would limit the tax credit to $600 for the windows. The door would be eligible too ($2,000 x 0.30 = $600). They’d be limited to $500 for the door so this project would max out the tax credit and the person in our example would save $1,100 on their taxes that year.

This is a tax credit not a deduction so it’s real savings. Of course you should contact your tax professional with any questions, but it’s a relatively simple program.

It’s important to note that the max is annual meaning you could buy some windows this year, more windows next year and you can get the $600 for both years. I imagine some people will spread out projects to maximize tax credits, but many will probably just max it out one year and be done with it.

What is the cost of windows that qualify for tax credits?

The criteria windows and doors need to meet to qualify for tax credits has gotten more stringent. The cost has also gone up. You’ll need to order a more efficient glass package in order to qualify. The cost of that package will likely exceed the tax credit that you’ll receive.

That means you’ll pay more for the upgrade than you’ll get back. That’s not ideal, but it does offset the cost of getting a more efficient result.

In the example above the person bought 10 windows and 1 sliding door and qualified for $1,100 in tax credits. The cost of that upgrade compared to a more common efficiency package is likely to be in the range of $2,000.

In that case you’d be paying $2,000 in order to get a tax credit of $1,100. The net result is you paid $900 more and got windows that are much more efficient.

So, you’re not going to get new windows for free as a result of these tax credits, but it does offset the increased cost that comes with an efficiency upgrade.

That efficiency upgrade will make your home more comfortable and lower your utility costs for decades so it’s definitely something to consider. Especially with Uncle Sam paying part of the bill.

What else to know about window and door tax credits?

It’s important to note that you’re only eligible for these tax credits if the windows and doors are installed in your primary home. Rental houses don’t count.

You don’t need a professional to install the windows. You could install them yourself. However, it’s unlikely you’ll find windows efficient enough to qualify on the shelf at Home Depot. It takes higher end window to qualify. Products like that are typically sold through dealers or window companies.

Some manufacturers likely won’t have products that can meet these standards. The requirements are pretty strict. Some will also likely only have very expensive ways to qualify. This is because some companies will need to use krypton gas between the panes and that’s an expensive solution.

If you’re considering ordering windows it’s worthwhile to understand the cost difference involved in the upgrade that would qualify so you can make an informed decision.

If you’re looking for a window company you can find our recommendations for local window companies all over the country right here.

The Best Window Company in St George, UT – Window Universe!

If you’re looking for the very best replacement windows in St George, UT and the surrounding area you’re in luck!  My company, Window Universe, is offering windows in the St George area and I’d be happy to personally help you with a window order.

You now qualify to receive 25% discount from Window Universe. Get pricing by email with no pushy salesman in your house and save. Don’t overpay for new windows. Info below.

We’re a little different than most companies in that we will email you our complete price list so you can see what everything will cost.  We’ll listen to what you’re trying to accomplish and make a suggestion that will accomplish your goals.

Replacement windows St George, UT

In the St George area we’re currently offering 7 models of windows with over 100 energy efficient options. We have the solution to just about every window problem which is why I’m confident we’re the best window company in St George.

Best of all we’re doing it with no pushy in-home salespeople!

If you’d like to get a simple and easy quote for your project the process is pretty easy.  You can either complete the form at the end of this post and we’ll be in touch with more info.

If you’d like more info you can check out our website at StGeorgeWindowUniverse.com for more info about what we’re up to.

How does this work?

Good question.  We’ve tried to design the absolute easiest way to get new windows.  Here’s how it works:

  1. You fill out the form on this page to request a quote
  2. We’ll send you a detailed and itemized quote for your window project
  3. You can ask any questions and we can make any revisions as necessary
  4. When we have the order the way you want it we have the windows custom measured, manufactured and expertly installed.

It’s so easy you won’t believe people still order windows the old fashioned way.

You can even order custom windows without installation to install yourself.

I want to see how this works!

Great, we want to hear from you.  Fill out the form here and we’ll be in touch with more info about the products and services that we offer in St George.  You’re not going to believe how easy this is.


Itemized Price List Request Form


Not in St George?  We can still help you find a great company to work with.  Find our directly of the best window companies all over the country right here.