Scientifically Proven to Stand the Test of Time*

20 year warranty
Find all shapes, sizes, and colors, and get the perfect windows for your home.

A lot of things can change in 20 years. Your windows shouldn't be one of them.

Our warranty is our promise to you and it is backed by extensive testing.

We recently tested Renewal by Andersen® windows that had been professionally installed more than 20 years ago. These windows withstood over two decades of extreme Minnesota weather** - brutally cold winters, hot humid summers and everything in between.

And what did we find as a result of these performance tests? After all those years, enduring some of the biggest weather swings Mother Nature can dish out, in real situations, operated by real people, our windows still opened and closed as easily as the day they were installed† and they still looked brand new.

Download Limited Warranty for units purchased after May 1, 2016

Download Limited Warranty for units purchased before May 1, 2016

Nations best warranty coverage

Renewal by Andersen's customers not only receive the top quality product and signature service, they get the Nation's Best Warranty Coverage as well. At Renewal by Andersen, we believe that a warranty should be more than just a length of time; what and how our products are covered matter.

Compared to top selling competitors, warranty coverage quality for transferability, required maintenance, geographic restrictions, labor, installation, clarity of terms, and additional benefits Renewal by Andersen is an industry leader. More information: www.renewalbyandersen.com/nationsbest

*See the limited warranty for details. **Based on testing of 10 double-hung units 20 years after installation. †It is the only warranty among top selling window companies that meets all of the following requirements: easy to understand terms, unrestricted transferability, installation coverage, labor coverage, geographically unrestricted, coverage for exterior color, insect screens and hardware, and no maintenance requirement. Visit renewalbyandersen/nationsbest for details.