Our No-Nonsense Warranty

At Thermal Windows, we're proud of the quality of our products, installations and service. That's why our warranty is not packed with the legalese that other companies often use to weaken their coverage.

In addition, since we manufacture our windows and sliding glass doors, you do not have to contact a factory in a distant state for warranty service.

Since installation is a crucial part of window and door performance, our Lifetime warranties only apply to products installed by Thermal Windows, Inc. Contact us if you would like information on warranty coverage for products installed by you or a contractor.

(Click on an image below to open a printable PDF).

Lifetime Limited warranty

Sliding Glass Door warranty

Glass Breakage warranty
Note: The Glass Breakage warranty is only available as an option, at a nominal per-item charge.