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Replacement Window Warranty 101: Basic Facts

Window warranties show a manufacturer’s confidence in the quality of their windows. If your new window fails to perform well or has factory defects, its warranty allows you to have the unit fixed or replaced without additional expense. 


Window Warranty

When shopping for replacement windows, make sure to check the following details.


If you plan on selling your home, make sure your windows come with a transferrable warranty. This type of warranty ensures that the windows will still have coverage even if the owner of the property changes. This is an appealing selling point for homebuyers, so a transferable window warranty usually helps increase a property’s value. 


A prorated warranty means that the coverage will diminish as the window ages. In general, warranties for windows and patio doors include full coverage for the first 10 to 20 years. But beyond this period, proration is implemented. Make sure to check your window warranty for specific details on proration. 

Labor & Installation

Manufacturers don’t cover workmanship errors, and they will only honor their warranties if qualified contractors installed the windows. Meanwhile, some window installation contractors offer labor and installation warranties that cover issues caused by faulty installation. Their warranties typically last one to two years after installation. 

Coverage Period

Window warranties vary widely, and low-quality windows may include coverage of only a few years. Renewal by Andersen is proud to offer a 20-year fully transferable limited warranty on our windows. This includes a 20-year limited warranty on glass and Fibrex® material, a five-year limited warranty on installation and a 10-year limited warranty on components other than glass. It’s why we call it the Nation’s Best Warranty Coverage!

If you’re looking for the best replacement doors and windows for your home, you can always count on Renewal by Andersen of Northeast PA to help with your project. We ensure top-notch workmanship and superior customer service every time. Call us at (610) 849-2800 or fill out our contact form to schedule a consultation.


"Our installation team, Josh and Mike, did a phenomenal job with the installation, cleanup, and "orientation" after the work was completed! We were totally satisfied with everyone that we dealt with before and after the installation...and would surely recommend Renewal by Andersen to anyone contemplating a window replacement project!"

Kathy B.
Nazareth, PA

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