Pella Impervia fiberglass windows and sliding patio doors marry style with strength that is impervious to nearly all weather conditions. These fiberglass replacement windows and patio doors are crafted to give outstanding performance in brutal heat and cold. The Pella Impervia line is made with Duracast, which is Pella’s exclusive fiberglass composite – one of the strongest and most durable materials available for fiberglass windows. Since Duracast can last through high heat or sub-zero cold, our Pella Impervia windows and patio doors are ideal for all climates, particularly Casper.

As our leading line of fiberglass windows and sliding doors, you’ll love the appearance and energy efficiency of Pella Impervia.


Pella Impervia Series Brochure Cover


Click below to see what the Pella Impervia Series can do for your Casper home.
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Our fiberglass replacement windows and patio doors provide excellent insulating properties to improve your home’s comfort and save energy. Optional foam-insulating frames can be an additional feature to improve the efficiency of your new ENERGY STAR® certified windows, which meet efficiency guidelines in the U.S. and Canada.

Impervia windows and sliding patio doors provide the look of painted wood. They come pre-finished with a weather-resistant, powder-coat finish. A variety of color possibilities are available to help your windows fit your home inside and out. You’ll also like Prairie Pella Wyoming LLC’s environmentally-conscious paint process, which almost totally gets rid of VOC’s, making the air inside your Casper area home healthier.

The attractiveness of Impervia Pella doors flows from the trim to your screen choices. Our optional InView high-transparency screens enrich your view by allowing in more light and more air. Pella Impervia windows and patio doors are a solid choice for any space. Impervia delivers quality that stands up as well as beauty that stands out. What’s even better, they are backed by Pella’s limited warranty – one of the best in the window and door industry.

Arrange a free in-home consultation online or by phone at 307-234-1518. You can also stop by our showroom in Casper to see these windows and patio doors up close.