Pella® Impervia® Series Windows and Doors

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

Impervia’s strength comes from Duracast®, our patented fiberglass composite. It’s one of the sturdiest and most durable materials available for fiberglass windows and patio doors1. Duracast resists temperatures from severe heat to subzero cold, making Pella Impervia windows and exterior doors great for all seasons.

The outstanding insulating qualities of our fiberglass replacement windows and patio doors boost your home’s comfort and help reduce energy use. Optional foam-insulating frames could 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 stays looking great for years—inside and out—with little care. With many colors to explore, you’ll find windows and patio doors to reflect your home’s style, inside and out. Our environmentally friendly paint process essentially removes toxic chemicals, helping the air inside your home stay clean.

Pella Impervia offers quality that you can rely on 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 set up a complimentary, in-home consultation or come by your local Pella showroom to look at these windows and patio doors in detail.





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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