Pella Thermastar 20 Series Replacement Vinyl Window Review

Pella Thermastar 20 Series replacement windows are a popular choice for homeowners who want lower prices and value that is still quite good. The Thermastar window warranty covers the frames for life – and exceptional warranty for a window in this price range. The 20 Series windows are available in double-hung and sliding models.

This Pella Thermastar 20 vinyl window review gives you the pros and cons of this window so you can decide if it is a good choice for your remodeling project. Use this review to compare this window with quality vinyl windows from ReliaBilt, Pella, Marvin and other brands we cover in our window reviews.

Benefits of the Pella Thermastar 20 Series Replacement Vinyl Window

The affordable price of these windows produces good value, and this is the primary reason they are chosen. They cost 25% to 40% less than most top of the line vinyl windows and yet offer a warranty that is just as good.

The quality is good enough that they will resist warping and cracking for many years. These are maintenance-free windows inside and out, a good match for homes with maintenance-free vinyl siding. This is a reason that they are often chosen by rental property owners as well as homeowners.

These Pella Thermastar 20 double-hung windows offer good ventilation. Lower the top sash to allow heat to escape or the lower sash to install an AC or to provide general ventilation.  Both sashes tilt inward for easy cleaning. The moving sash on 20 Series sliding windows is removable for cleaning too.

Thermastar uses a very good glass package on these windows, the Advavnced Low-E glass with Argon which is Energy Star qualified and will lower energy bills in any climate when replacing older windows.

There are enough standard sizes available for this window most homes will not require custom fits – though custom sizes are available. Our Pella Thermastar 20 Series window reviews show some of the most popular sizes for this window. Additional glass options include Obscure insulating, Tempered insulating, SunDefense Low-E and Tinted panes.

Finally, Pella Thermastar 20 vinyl window prices are very good, with most sizes available for $85-$150.

Drawbacks of the Pella Thermastar 20 Series Replacement Vinyl Window

These windows are available in White only. If you want vinyl windows in additional colors, see our Jeld-Wen Premium vinyl reviews and the Pella 350 vinyl window reviews. Both of those windows are more expensive than this one however.

The hardware warranty on these windows is just 10 years, but that is common even for higher-quality vinyl windows.

Finally, the appearance of these windows is good but not exceptional. They’re quite basic and the options are limited, such as the single grille pattern available.

Conclusion

If you want to save money on a good vinyl window, this one is worth considering. The Pella Thermastar 20 Series replacement window is built to give you 25+ years of durability and performance.

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