Pella® Impervia® Series Windows and Doors

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

Impervia’s strength comes from Duracast®, our patented fiberglass composite. It’s one of the strongest and most well-built materials obtainable for fiberglass windows and patio doors1. Duracast stands up to conditions from intense heat to freezing cold, making Pella Impervia windows and exterior doors great for all seasons.

The impressive insulating qualities of our fiberglass replacement windows and patio doors boost your home’s comfort 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 are delivered prefinished with a factory powder-coat finish that maintains its looks for a long time—inside and out—with little upkeep. With many colors to select, you’ll find windows and patio doors to reflect your home’s look, inside and out. Our environmentally friendly paint process virtually eliminates toxic chemicals, helping the air inside your house stay healthy.

Pella Impervia brings 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
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to schedule a complimentary, in-home consultation or come by your convenient 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.