Pella® Impervia® Series Windows and Doors

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

Impervia’s durability comes from Duracast®, our special fiberglass composite. It’s one of the strongest and most well-built materials obtainable for fiberglass windows and patio doors1. Duracast defends against temperatures from severe heat to freezing cold, making Pella Impervia windows and exterior doors exceptional for all regions.

The superior insulating features of our fiberglass replacement windows and patio doors enhance your home’s coziness and help reduce energy use. Optional foam-insulating frames can be installed on these ENERGY STAR®-certified windows and patio doors.

Pella Impervia windows and sliding patio doors come 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 complement your home’s design, inside and out. Our environmentally friendly paint process essentially eliminates toxic chemicals, helping the air inside your home stay clean.

Pella Impervia offers quality that you can rely on and beauty that stands out. Also, to top things off, they are supported by our limited warranty—one of the strongest in the industry.2

Impervia Series dining room windows
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to set up a complimentary, in-home consultation or visit your local Pella showroom to look at 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.