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Pella® Impervia® Series Windows and Doors

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

Impervia’s strength comes from Duracast®, our unique fiberglass composite. It’s one of the sturdiest and most reliable materials available for fiberglass windows and patio doors1. Duracast stands up to conditions from severe heat to freezing cold, making Pella Impervia windows and exterior doors excellent for all seasons.

The impressive insulating features of our fiberglass replacement windows and patio doors boost your home’s comfort and help conserve energy. Optional foam-insulating frames could be included on these ENERGY STAR®-certified windows and patio doors.

Pella Impervia windows and sliding patio doors come prefinished with a factory powder-coat finish that stays vibrant for a long time—inside and out—with little maintenance. With a wide selection of colors to choose from, you’ll find windows and patio doors to reflect your home’s style, inside and out. Our environmentally friendly paint process essentially eliminates toxic chemicals, helping the air inside your home stay healthy.

Pella Impervia brings quality that you can rely on and beauty that stands out. Plus, to top things off, they are backed by our limited warranty—one of the best in the industry.2

Impervia Series dining room windows
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to plan a complimentary, in-home consultation or come by your convenient Pella showroom to see 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.