Author: thewindowdog

Update: While this ThermaStar by Pella window review was originally written several years ago it’s been updated in 2021 as we continue to work to provide the best replacement window information on the entire internet in 2021 and beyond.  See info towards the bottom of this post for the most recommended window companies in 2021.  Be sure to post a comment or send us a message with any questions!

Today in the top secret WindowDog lair we have captured a ThermaStar by Pella Series 20 replacement window.  You can find these sitting on the shelves at Lowes stores all over the country.  We captured this one at a store in Maryland and the same line appears to be in all Lowes stores east of the rockies.

These windows are cheap and that’s the point.  This one cost us about $125 and it includes low-e glass and a full screen.  That sounds like the best price you’ll find for replacement windows.

Is it worth the cost?

There are a few distinct drawbacks to buying stock replacement windows from a big box store like Lowes and this window will illustrates them well.

First, as you can see on the label, this window has a nominal size of 24×38, and an actual frame size of 23.5″x37.5″.  If the holes in your house happen to be just that size then you’re in good shape.  If not, you’re going to get creative.  You can rip down some lumber and fill an opening by an inch or two to make a stock window fit, but you’re not going to have the prettiest results.

The biggest drawback is the most obvious.  They just won’t fit right.  You can get cheap custom sized windows from distributors that will still be flimsy, but at least they’ll fit right.

Why are these so cheap?

Here’s a good example, look at this screen.  As you can see in the picture below it has a roll-formed frame, the spline is on the outside, the corner keys are exposed, and on and on and on.

If you install this window and never touch that screen for the rest of your life it might hold up.  If you try to remove it, or open it, or stare at it for too long it’s going to bend.  I’m not sure if I have the words to describe how flimsy it feels in your hands.

Next, let’s look at the quality control.  This is a picture of the meeting rail.  You can see the big black scratch that came with this window along with the big thick welds.

This was a brand new window and while things do get dirty it’s hard to imagine how it got that scratch.  It may have come from the shelves at Lowes, but it was under the plastic wrapping.  More likely it came from the Pella plant.  It will probably come clean with some soft scrub, but it’s a chore I’d rather not deal with.

As an aside: Soft Scrub will clean anything off of a vinyl window.  It’s amazing.

Here is a quick look at the night latches that can limit how far the windows open.  This mechanism looks similar to many others out there.  I sometimes prefer the type without the button as this seems like it may be a failure point in the future, but it works ok for now.

How about the warranty on the Pella ThermaStar 20 windows from Lowes?

As you’d probably expect the warranties on stock windows from box stores like Lowes aren’t the same what you’d find on nicer windows.  In this case you only get 2-years of labor coverage to fix a manufacturing issue and the non-glass components are only covered for 10 years if you don’t live in the home.  Many folks might use these windows in a rental property so that is a factor to consider.  If you get the fancy blinds between the glass you’ll only get a 5 year warranty.  That’s an expensive option to only last 5 years.

You can download the entire ThermaStar by Pella windows warranty right here.

What’s the bottom line?

Well, the price was about $125, the quality is questionable, the sizes are limited and the warranty is pretty weak.  As you might expect this one isn’t a great buy.

If you’re looking to install windows yourself post a comment and we’ll try to direct you to a local distributor that can help you with custom made windows.  For something like $25-$50 more per window you can get a MUCH nicer custom made window.

For now you might want to take a look through our detailed replacement window reviews to get a better idea of your options.  You’ll be glad you shopped around.

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. 

Did a contractor or window salesman recently tell you about Harvey Classic windows? Here we’ll look at Harvey Classic window review to see if they’re a worthwhile choice.

For starters I’ll tell you this has never been a fantastic window option. While you do see Harvey windows all over the Northeast that doesn’t necessarily mean they’re the greatest thing around.

The Harvey Classic window is an older design. It was never designed to be the greatest option around and it offers relatively limited features.

How efficient is the Harvey Classic window?

About average. One thing that stands out is that there are only three efficiency packages available for this window model. That’s pretty limited.

The options are ThermaLock, SunGain HSHG and ThermaGuard.

The efficiency ratings will be relatively similar between the ThermaLock vs the ThermaGuard pacakges. Both are Energy Star rated in the North and North Central zones. The big difference for me is that you get much more light through the ThermaGuard package. For me that’s a big deal and I would defininltey pick the ThermaGuard package for my house.

The chart above can be a little hard to read. To save you the trouble the VT rating is 0.55 for the ThermaGuard vs 0.49 for the ThermaLock package. That means you get about 10% more light through the ThermaGuard package. It’s a better option in most cases.

What about the Harvey Classic warranty?

We mentioned the Harvey window warranty in our review of the Harvey Tribute model as well. The long and short of it is that the warranty isn’t the best.

There’s no labor coverage, no installation coverage, and a limited 20 year warranty on the glass. Overall, just like the rest of the windows, the warranty is ok, but not the greatest.

So, what’s the bottom line?

Well, the features are pretty limited, the efficiency packages are limited, the warranty is mediocre at best. We’ve also seen some negative feedback from readers of the site about Harvey windows as well.

Overall I’d say if a contractor is recommending the Harvey Classic window to you he probably tells you that he’s been dealing with them for years. Is that a good thing or is a sign of a guy who’s not evaluating the options to offer the best choices?

Harvey windows are very widely distributed. They’re easy for a contractor to get and that can make them preferable to sell. Unfortunately that doesn’t really make them better for you.

I’d look for a better option.

If you’re shopping for windows I do always suggest finding a great installation company before you fall in love with any particular window model. There are plenty of great window options out there but not as many local companies that are great to work with.

To find our recommended window companies all over the country check this section. If we know someone in your neck of the woods they’ll be listed there and they’ll be happy to help.

If we don’t know anyone local to you be sure to let us know who you find. I’m sure you’re not the only person looking.

Remember, for more great window company info you can find our suggestions for the best local companies in your area right here. There’s no need to work with a company that gives you the run-around or makes the process difficult. There are plenty of fish in the sea as they say. The best way to get started is to check out our list of great window companies.