Our Lifetime Limited Warranty

At Thermal Windows, we're proud of the quality of our products, installation and service.

If a problem occurs that is covered by our warranty, you have the comfort of knowing that you will be dealing directly with us, the manufacturer who is familiar with you and your order, not a factory in a distant state.

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


Our Lifetime Limited Warranty is transferable and includes parts and labor!

Some conditions apply. Please contact us for details.


Click on an image below to open a printable PDF.
Full details on exclusions and limitations are available on request.
Thermal Barrier window warranty
Thermal Barrier window warranty
Sliding Glass Door warranty
Sliding Glass Door warranty
Vinyl window warranty
Vinyl window warranty
Glass Breakage warranty
Glass Breakage warranty
Note: The Glass Breakage warranty is an option, available at a nominal per-item charge.


Therma-Tru doors warranty information
Larson Storm Doors warranty information







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Thermal Windows, Inc, Windows, Tulsa, OK
Tulsa World Best in the World medallion
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