Pella® Impervia® Series Windows and Doors

The Pella® Impervia® line blends style with strength 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 special fiberglass composite. It’s one of the sturdiest and most well-built materials available for fiberglass windows and patio doors1. Duracast defends against weather from severe heat to frigid cold, making Pella Impervia windows and exterior doors exceptional for all regions.

The superior insulating qualities of our fiberglass replacement windows and patio doors boost your home’s coziness and help reduce energy use. Optional foam-insulating frames may 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 the long haul—inside and out—with little maintenance. With many colors to explore, you’ll find windows and patio doors to complement your home’s design, inside and out. Our environmentally friendly paint process virtually eliminates toxic chemicals, helping the air inside your house stay chemical-free.

Pella Impervia brings quality that stands up and beauty that stands out. Also, to top things off, they are backed by our limited warranty—one of the most thorough in the industry.2

Impervia Series
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to plan a complimentary, in-home consultation or come by your nearby Pella showroom to check out these windows and patio doors in detail.





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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