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 almost all types of weather.

Impervia’s toughness comes from Duracast®, our unique fiberglass composite. It’s one of the strongest and most durable materials obtainable for fiberglass windows and patio doors1. Duracast stands up to weather from severe heat to freezing cold, making Pella Impervia windows and exterior doors excellent for all seasons.

The impressive insulating qualities of our fiberglass replacement windows and patio doors improve your home’s livability and help save on energy. Optional foam-insulating frames could be installed 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 maintains its looks for years—inside and out—with little upkeep. With many colors to explore, you’ll find windows and patio doors to reflect your home’s style, inside and out. Our environmentally friendly paint process virtually eliminates toxic chemicals, helping the air inside your house stay healthy.

Pella Impervia offers quality that you can rely on and beauty that stands out. Also, 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 schedule a free, in-home consultation or come by your convenient Pella showroom to see 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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