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 practically all types of weather.

Impervia’s toughness comes from Duracast®, our patented fiberglass composite. It’s one of the sturdiest and most well-built materials available for fiberglass windows and patio doors1. Duracast resists weather from severe heat to subzero cold, making Pella Impervia windows and exterior doors excellent for all seasons.

The outstanding insulating features of our fiberglass replacement windows and patio doors improve your home’s comfort and help conserve energy. Optional foam-insulating frames may be installed 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 the long haul—inside and out—with little upkeep. With an array of 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 practically removes toxic chemicals, helping the air inside your home stay chemical-free.

Pella Impervia offers quality that you can rely on and beauty that stands out. Also, to top things off, they are backed 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 no-cost, in-home consultation or come by your local Pella showroom to check out 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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