Pella® Impervia® Series Windows and Doors

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

Impervia’s strength comes from Duracast®, our unique fiberglass composite. It’s one of the toughest and most reliable materials obtainable for fiberglass windows and patio doors1. Duracast stands up to weather from intense heat to frigid cold, making Pella Impervia windows and exterior doors exceptional for all climates.

The outstanding insulating qualities of our fiberglass replacement windows and patio doors improve your home’s comfort and help conserve energy. 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 a long time—inside and out—with little upkeep. With many colors to explore, you’ll find windows and patio doors to reflect 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 features quality that stands up and beauty that stands out. Also, to top things off, they are secured 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 plan a complimentary, in-home consultation or come by your convenient Pella showroom to see 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.
Live Chat
I can help with your window or door replacement questions.