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 almost all types of weather.

Impervia’s toughness comes from Duracast®, our patented fiberglass composite. It’s one of the toughest and most well-built materials in the market for fiberglass windows and patio doors1. Duracast defends against conditions from intense heat to freezing cold, making Pella Impervia windows and exterior doors great for all seasons.

The impressive insulating features of our fiberglass replacement windows and patio doors boost your home’s comfort and help reduce energy use. Optional foam-insulating frames could be installed 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 looking great for years—inside and out—with little care. With a wide selection of colors to select, you’ll find windows and patio doors to complement your home’s style, inside and out. Our environmentally friendly paint process virtually eliminates toxic chemicals, helping the air inside your room stay chemical-free.

Pella Impervia offers quality that stands up and beauty that stands out. Also, to top things off, they are secured by our limited warranty—one of the most thorough in the industry.2

Impervia Series dining room windows
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to schedule a no-cost, in-home consultation or stop by your local Pella showroom to check out 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.
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