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Home | Why Great Lakes Window | Warranty Information


For as long as you live in your home, we back every window and patio door from Great Lakes® Window with our Limited Lifetime Warranty*. Our door and window warranty covers everything – from the frame, sash, glass seal failure, to hardware, screens and more. And should you ever decide to move away, your warranty is completely transferable to the next homeowner. No questions asked.

And because our windows and patio doors are manufactured in the U.S.A. by Great Lakes Window, a Ply Gem brand, you can have absolute confidence in our products and our commitment to you and your home.

They looked up our warranty and replaced the windows. We were so pleased! Thanks for staying true to your promise. – Tammy and Tom Spillis


*Restrictions apply; please see the applicable warranty for complete details.