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 nearly all types of weather.

Impervia’s toughness comes from Duracast®, our patented fiberglass composite. It’s one of the strongest and most durable materials in the market for fiberglass windows and patio doors1. Duracast defends against weather from intense heat to subzero cold, making Pella Impervia windows and exterior doors great for all regions.

The outstanding insulating qualities of our fiberglass replacement windows and patio doors boost your home’s coziness and help conserve energy. Optional foam-insulating frames may be included 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 stays vibrant for the long haul—inside and out—with little care. With a wide selection of colors to select, you’ll find windows and patio doors to reflect your home’s look, inside and out. Our environmentally friendly paint process practically gets rid of toxic chemicals, helping the air inside your room stay healthy.

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

Pella® Impervia® Series
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to schedule a complimentary, in-home consultation or stop by your convenient Pella showroom to look at 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.