Pella® Impervia® Series Windows and Doors

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

Impervia’s durability comes from Duracast®, our special fiberglass composite. It’s one of the sturdiest and most reliable materials available for fiberglass windows and patio doors1. Duracast resists weather from extreme heat to subzero cold, making Pella Impervia windows and exterior doors great for all regions.

The impressive insulating qualities of our fiberglass replacement windows and patio doors enhance your home’s coziness and help reduce energy use. Optional foam-insulating frames could 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 care. With many colors to choose from, you’ll find windows and patio doors to complement your home’s style, inside and out. Our environmentally friendly paint process practically gets rid of toxic chemicals, helping the air inside your home stay chemical-free.

Pella Impervia offers quality that you can count on and beauty that stands out. Plus, to top things off, they are secured by our limited warranty—one of the most thorough in the industry.2

Impervia Series
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to set up a complimentary, in-home consultation or stop by your local 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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