Pella® Impervia® Series Windows and Doors

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

Impervia’s toughness comes from Duracast®, our patented fiberglass composite. It’s one of the toughest and most reliable materials available for fiberglass windows and patio doors1. Duracast defends against conditions from extreme heat to frigid cold, making Pella Impervia windows and exterior doors great for all regions.

The superior insulating qualities of our fiberglass replacement windows and patio doors improve your home’s coziness and help save on energy. Optional foam-insulating frames may 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 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 virtually removes toxic chemicals, helping the air inside your home stay healthy.

Pella Impervia offers 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 strongest in the industry.2

Impervia Series
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to schedule a no-cost, in-home consultation or come by your nearby 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.