Pella® Impervia® Series Windows and Doors

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

Impervia’s strength comes from Duracast®, our patented fiberglass composite. It’s one of the strongest and most reliable materials obtainable for fiberglass windows and patio doors1. Duracast stands up to weather from extreme heat to freezing cold, making Pella Impervia windows and exterior doors exceptional for all seasons.

The impressive insulating qualities of our fiberglass replacement windows and patio doors improve your home’s livability and help reduce energy use. Optional foam-insulating frames may 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 stays looking great for the long haul—inside and out—with little care. With many colors to choose from, you’ll find windows and patio doors to match your home’s design, inside and out. Our environmentally friendly paint process virtually removes toxic chemicals, helping the air inside your room stay chemical-free.

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 strongest in the industry.2

Impervia Series dining room windows
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to plan a complimentary, in-home consultation or visit your local Pella showroom to look at 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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