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Fiberglass Windows

Why Choose Fiberglass Windows?

Pella's fiberglass windows are made of the strongest, most durable material available in windows.17 Our patented, low-maintenance fiberglass is scratch-resistant and can withstand extreme heat and subzero cold temperatures, so you can trust our fiberglass windows to perform in your home.

Pella® Impervia®

Pella® Impervia® fiberglass windows offer superior strength and durability. Enjoy the enduring beauty of fiberglass awning, casement, sliding, single-hung and double-hung windows — backed by one of the strongest warranties in the business

Pella® Impervia® Window Types

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Fiberglass Window Features & Options

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LIMITED LIFETIME WARRANTY

Pella products are backed by some of the strongest warranties in the business.

Learn more about Pella warranties

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