Pella® Impervia® Series Windows and Doors

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

Impervia’s durability comes from Duracast®, our unique fiberglass composite. It’s one of the sturdiest and most well-built materials in the market for fiberglass windows and patio doors1. Duracast resists 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 improve your home’s comfort and help save on energy. 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 vibrant for the long haul—inside and out—with little maintenance. With an array of colors to choose from, you’ll find windows and patio doors to reflect your home’s design, inside and out. Our environmentally friendly paint process essentially gets rid of toxic chemicals, helping the air inside your home stay clean.

Pella Impervia features quality that you can count on and beauty that stands out. Also, to top things off, they are secured by our limited warranty—one of the most thorough 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 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.
Live Chat
I can help with your window or door replacement questions.