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 practically all types of weather.

Impervia’s strength comes from Duracast®, our special fiberglass composite. It’s one of the sturdiest and most durable materials in the market for fiberglass windows and patio doors1. Duracast stands up to weather from severe heat to subzero cold, making Pella Impervia windows and exterior doors excellent for all climates.

The superior insulating properties of our fiberglass replacement windows and patio doors boost your home’s coziness and help reduce energy use. 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 years—inside and out—with little care. With many colors to select, you’ll find windows and patio doors to match your home’s look, inside and out. Our environmentally friendly paint process essentially removes toxic chemicals, helping the air inside your room stay chemical-free.

Pella Impervia offers quality that stands up and beauty that stands out. And to top things off, they are secured by our limited warranty—one of the best 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 come by your convenient Pella showroom to check out 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.
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