Now Offering the Best Replacement Windows (almost) Nationwide!

Way back in the fall of 2015 we started testing a program offering quotes for the best replacement windows by email with no in-home salesperson. It was a wild idea.

Customers could get prices, ask questions and then have their windows professionally measured and installed with no pushy salesperson in their living room. Everyone thought we were crazy and it’s been a HUGE success!

Now we’re offering replacement windows with and without professional installation in dozens of cities across the country. Thanks to our fantastic readers this program has been a runaway success. As a result, we’ve expanded to 37 markets. We’ve even added the upgraded Gentek product line in many markets in addition to Alside, Revere and others.

Order Alside and Gentek windows online and other brands too.
Here’s the window dog hard at work with the team at a home and garden show. He has to earn his kibble around here!

This is the easiest possible way to order replacement windows

First, we’re offering a wide range of replacement windows from the best manufacturers. Our most popular options have been the Gentek Signature Elite and the Alside Mezzo and there are many others to choose from. We’re also offering all styles of windows including double hung windows, casement windows, bay windows, garden windows, sliding patio doors and much more.

Next we’re offering top quality installation with a local project manager and top quality installation crews to make sure everything is done right. You can also install the windows yourself if you’d prefer.

Best of all, if you’re in an area covered by this program, we can get you a complete itemized quote for your project by email without you ever inviting a salesperson into your home.

That’s right, you could spend several evenings inviting salespeople into your home to give you their sales pitch, walk you through their predetermined “price drops” and try to close the deal with their 50% off today only special after calling the manager for a special deal 3 times. Or, you could exchange a few emails with our industry experts to get your project moving along quickly and easily. This really is the future.

So who is Window Universe?

Order Alside, Gentek, Revere windows online from Window Universe.

Window Universe is the company we founded many years ago. We’ve grown from one small business operating out of an apartment to a multimillion-dollar business offering windows in 37 states with more on the way.

How does this all work?

It’s pretty simple, which is why I love it. When you’re ready to get a quote by email for your replacement window project just fill out the form below and we’ll get back to you with more info by email right away.

We don’t need the sizes of the windows to get you a quote. This seems unusual to some folks, but we just don’t need to measure the windows to give you a quote in most cases. It’s just not necessary for the vast majority of projects. We will have the windows professionally measured before the manufacturing begins so they’ll fit just right, but it’s not needed at this point.

The basic info we’ll need is:

  1. How many windows you want to replace?
  2. How do you want them to open
  3. What color window frames do you want

That’s it, just the basics.

If there is anything about your project that you think is unusual just note it and we’ll address it when we get back to you. The whole process is really easy.

The best way to order replacement windows.

What have our customers been saying about this program?

 Here’s one example:

If you don’t want to DIY your replacement windows but pride yourself in being an informed consumer, Window Universe is the way to go! After sitting for hours listening to people tell me why their windows were the best, I couldn’t figure out why the window packages I was being presented with were so expensive ($10 – 12k for 7 slider windows)…

We are so pleased with the windows, the installer, and the process… Window Universe has created a great way to inform yourself as a consumer and be able to get real numbers. No games, gimmicks or “guess what your price is going to be if you buy it today!”

I rarely write reviews for products/services, but I was so impressed with the process, price and product, I told Dan that I would be happy to endorse them!

–Excerpt of an Angie’s List review from Andrea in Seattle, WA

Here’s another example

Every aspect of this window experience was excellent. They didn’t give a sales pitch, but instead provided links to specific information about all different types/brands of windows with ratings and specifications, so I was able to make an informed decision. 

He then provided a very detailed quote so I knew exactly what I was paying for, and was able to add or remove options and see the price impact of these changes. The accountant in me loved this approach.  Once we agreed to the window specs, I was given a final price and the measuring was scheduled. 

The gentlemen who came to measure the windows arrived when scheduled and was quick and efficient.  The windows were promptly ordered and once the windows were ready, the installation was scheduled.  The installation crew arrived on time and got right to work.  They put down tarps on my carpets since the install was on the 2nd floor and it was wet and snowy outside.  They installed the windows in a few hours and cleaned up afterwards.

–Excerpt of an Angie’s List review from Lisa in Philadelphia, PA

Here’s a bit more feedback from Austin in Dallas.  You get the idea.

Everyone loves it.

Double hung and casement windows from Window Universe.

Why are the prices for replacement windows so great?

Great question. Window Universe is a completely different kind of window company. We’re able to offer top quality products and expert level service at a very low price because we don’t spend our money on things you don’t care about.

Most traditional window companies spend tons and tons of money on sales and marketing. It’s not unusual for a company to spend 30%-40% of their total sales dollars on things that you don’t care about like sales commissions, marketing and advertising. We don’t do that. Paying people to walk around neighborhoods knocking on doors is expensive, so are tv commercials and billboards.

Another company may be able to get to a similar price by offering cheap windows or by using cheap subcontractors. That’s a low price, but it’s not a great value.

A typical company offering the replacement windows and service that we offer would charge $10k for a project while we would charge $7k or less. It’s a great deal because our business model is more efficient.

Best quality replacement windows with prices online and quotes by email.

I have more questions about replacement windows

Great! I love it when folks ask great questions. I’ve been emailing with many people about this program since we launched. I’ve noted most of the questions we get and put the answers all in one place for you.

On our FAQ page you’ll find answers to all sorts of questions like:

  • Will the price change after the windows are measured?
  • Who does the installation?
  • What is the warranty on these windows?
  • Are these the right windows for my climate?

How do I get a quote for replacement windows online?

That’s the easiest part. When you’re ready to get a detailed itemized quote for your project just fill out the form below (or click the city nearest to you to see the local website) and we’ll send you back an email just as quickly as we can.

If you don’t know the answer to any of the questions or if you’re not sure about something just make a note of it and send in the form as complete as you can. It’s ok if you don’t know all of the terms for these things. We know everyone isn’t an expert when it comes to replacement windows.

The cutest window reps at the face painting booth

What if I don’t know the window terms?

Don’t worry about it. If you’re unsure about something just take your best guess and let us know you’re not quite sure. We can always revise the proposal later.

The first quote we send is intended to be a starting point. Our customers revise their quotes an average of 4 times before placing an order. This is just a starting point and we can make unlimited revisions until we have the order just right.

You can also reply to our initial email with pictures, dimensions or anything else you’d like to show us.

What areas are included in this program?

Here is the list of states and cities where we are currently offering replacement windows and doors. We’ll surely be adding more soon so if your state isn’t on the list check back often.

Select the area closest to you to learn more

Don’t see the area you’re looking for? try this section.

If you’re within about an hour of any of these cities and you’re ready to finally get those new replacement windows just fill out the form right here. We will get back to you asap and we will NEVER share your information with anyone.

Have more questions?  Don’t be shy, just ask!

To see if we can help with your project just fill out this form and you’ll receive an email with the next steps and additional info right away.




Get your completely FREE project quote by email.  

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


  • 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.


  • 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


  • 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


  • 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


  • 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.


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.


  • 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