Pella® Impervia® Series Windows and Doors

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

Impervia’s durability comes from Duracast®, our unique fiberglass composite. It’s one of the sturdiest and most durable materials in the market for fiberglass windows and patio doors1. Duracast stands up to weather from extreme heat to frigid cold, making Pella Impervia windows and exterior doors exceptional for all climates.

The outstanding insulating qualities of our fiberglass replacement windows and patio doors improve your home’s comfort and help conserve energy. Optional foam-insulating frames can be included 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 maintains its looks for a long time—inside and out—with little maintenance. With many 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 house stay clean.

Pella Impervia features quality that you can count on 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 dining room windows
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to schedule a free, in-home consultation or stop by your nearby Pella showroom to check out 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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