Pella® Impervia® Series Windows and Doors

The Pella® Impervia® line combines style with endurance in fiberglass windows and patio doors that, as the name suggests, are impervious to nearly 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 available for fiberglass windows and patio doors1. Duracast resists conditions from extreme heat to frigid cold, making Pella Impervia windows and exterior doors excellent for all regions.

The outstanding insulating properties of our fiberglass replacement windows and patio doors enhance your home’s livability and help conserve energy. Optional foam-insulating frames may 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 maintains its looks for years—inside and out—with little care. With an array of colors to choose from, you’ll find windows and patio doors to match your home’s design, inside and out. Our environmentally friendly paint process practically removes toxic chemicals, helping the air inside your house stay healthy.

Pella Impervia brings quality that you can count on and beauty that stands out. And to top things off, they are secured 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 schedule a free, in-home consultation or come by your nearby Pella showroom to check out these windows and patio doors up close.





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.