Pella® Impervia® Series Windows and Doors

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

Impervia’s strength comes from Duracast®, our unique fiberglass composite. It’s one of the strongest and most durable materials obtainable for fiberglass windows and patio doors1. Duracast defends against weather from extreme heat to freezing cold, making Pella Impervia windows and exterior doors exceptional for all climates.

The outstanding insulating qualities of our fiberglass replacement windows and patio doors enhance your home’s comfort and help save on energy. Optional foam-insulating frames could be added to 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 looking great for years—inside and out—with little care. With many colors to choose from, you’ll find windows and patio doors to complement your home’s look, inside and out. Our environmentally friendly paint process virtually eliminates toxic chemicals, helping the air inside your room stay chemical-free.

Pella Impervia features 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 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 stop by your nearby 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.