Pella® Impervia® Series Windows and Doors

The Pella® Impervia® line combines style with strength 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 special fiberglass composite. It’s one of the toughest and most well-built materials in the market for fiberglass windows and patio doors1. Duracast resists conditions from severe heat to freezing cold, making Pella Impervia windows and exterior doors great for all regions.

The superior insulating features of our fiberglass replacement windows and patio doors improve your home’s livability 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 come prefinished with a factory powder-coat finish that maintains its looks for years—inside and out—with little maintenance. With a wide selection of colors to explore, you’ll find windows and patio doors to complement your home’s look, inside and out. Our environmentally friendly paint process essentially eliminates toxic chemicals, helping the air inside your room stay chemical-free.

Pella Impervia features quality that stands up and beauty that stands out. Also, to top things off, they are supported 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 stop 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.