Pella® Impervia® Series Windows and Doors

The Pella® Impervia® line couples style with strength in fiberglass windows and patio doors that, as the name infers, are impervious to nearly all types of weather.

Impervia’s strength comes from Duracast®, our patented fiberglass composite. It’s one of the toughest and most well-built materials in the market for fiberglass windows and patio doors1. Duracast stands up to weather from extreme heat to frigid cold, making Pella Impervia windows and exterior doors great for all regions.

The superior insulating features of our fiberglass replacement windows and patio doors improve your home’s livability and help reduce energy use. Optional foam-insulating frames could be added to 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 years—inside and out—with little care. With a wide selection of colors to choose from, you’ll find windows and patio doors to match your home’s style, inside and out. Our environmentally friendly paint process practically eliminates toxic chemicals, helping the air inside your home stay healthy.

Pella Impervia offers quality that you can count on and beauty that stands out. And to top things off, they are backed 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 free, in-home consultation or visit your local Pella showroom to see 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.