Pella® Impervia® Series Windows and Doors

The Pella® Impervia® line combines style with endurance in fiberglass windows and patio doors that, as the name infers, are impervious to practically all types of weather.

Impervia’s strength comes from Duracast®, our patented fiberglass composite. It’s one of the sturdiest and most reliable materials available for fiberglass windows and patio doors1. Duracast stands up to temperatures from intense heat to freezing cold, making Pella Impervia windows and exterior doors exceptional for all regions.

The superior insulating qualities of our fiberglass replacement windows and patio doors enhance your home’s coziness and help conserve energy. Optional foam-insulating frames may be installed on these ENERGY STAR®-certified windows and patio doors.

Pella Impervia windows and sliding patio doors are delivered prefinished with a factory powder-coat finish that stays looking great for years—inside and out—with little maintenance. With an array of colors to explore, you’ll find windows and patio doors to complement your home’s look, inside and out. Our environmentally friendly paint process essentially gets rid of toxic chemicals, helping the air inside your room stay healthy.

Pella Impervia brings quality that stands up and beauty that stands out. Plus, to top things off, they are supported by our limited warranty—one of the best in the industry.2

Impervia Series
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to plan a complimentary, in-home consultation or visit your convenient Pella showroom to check out these windows and patio doors in detail.





1In testing performed in accordance with ASTM testing standards. Duracast® fiberglass composite from Pella has displayed superior performance in strength, ability to withstand heat and cold, and resistance to dents and scratches.
2Based on comparing written limited warranties of leading national wood window and wood patio door brands. See Pella written Limited Warranty for details, including exceptions and limitations, at pella.com/warranty, or contact Pella® Customer Service at 877-473-5527.
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