Pella® Impervia® Series Windows and Doors

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

Impervia’s durability comes from Duracast®, our unique fiberglass composite. It’s one of the toughest and most reliable materials available for fiberglass windows and patio doors1. Duracast stands up to temperatures from severe heat to frigid cold, making Pella Impervia windows and exterior doors great for all climates.

The impressive insulating qualities of our fiberglass replacement windows and patio doors improve your home’s comfort and help reduce energy use. Optional foam-insulating frames can be included on these ENERGY STAR®-certified windows and patio doors.

Pella Impervia windows and sliding patio doors arrive prefinished with a factory powder-coat finish that stays looking great for a long time—inside and out—with little maintenance. With many colors to explore, you’ll find windows and patio doors to match your home’s design, inside and out. Our environmentally friendly paint process virtually gets rid of toxic chemicals, helping the air inside your home stay healthy.

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
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to set up a complimentary, in-home consultation or come by your convenient Pella showroom to see 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.
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