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Pella® Impervia® Series Windows and Doors

The Pella® Impervia® line combines style with durability 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 patented fiberglass composite. It’s one of the strongest and most well-built materials obtainable for fiberglass windows and patio doors1. Duracast defends against conditions from intense heat to frigid cold, making Pella Impervia windows and exterior doors excellent for all climates.

The superior insulating properties of our fiberglass replacement windows and patio doors improve your home’s coziness and help save on energy. 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 years—inside and out—with little maintenance. With a wide selection of colors to choose from, you’ll find windows and patio doors to reflect your home’s design, inside and out. Our environmentally friendly paint process practically eliminates toxic chemicals, helping the air inside your room stay clean.

Pella Impervia features quality that you can count on and beauty that stands out. And to top things off, they are supported by our limited warranty—one of the most thorough 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 come by your local Pella showroom to look at these windows and patio doors up close.





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.