Pella® Impervia® Series Windows and Doors

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

Impervia’s toughness comes from Duracast®, our patented fiberglass composite. It’s one of the toughest and most well-built materials in the market for fiberglass windows and patio doors1. Duracast stands up to conditions from intense heat to subzero cold, making Pella Impervia windows and exterior doors excellent for all seasons.

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

Pella Impervia windows and sliding patio doors come prefinished with a factory powder-coat finish that stays vibrant for years—inside and out—with little care. With an array of colors to explore, you’ll find windows and patio doors to match your home’s style, inside and out. Our environmentally friendly paint process virtually removes toxic chemicals, helping the air inside your home stay clean.

Pella Impervia brings quality that you can count on and beauty that stands out. And to top things off, they are secured 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 set up a free, in-home consultation or stop by your local Pella showroom to see these windows and patio doors in person.





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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