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 nearly all types of weather.

Impervia’s strength comes from Duracast®, our unique fiberglass composite. It’s one of the sturdiest and most reliable materials obtainable for fiberglass windows and patio doors1. Duracast stands up to temperatures from severe heat to subzero cold, making Pella Impervia windows and exterior doors great for all regions.

The superior insulating properties of our fiberglass replacement windows and patio doors enhance your home’s coziness 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 come prefinished with a factory powder-coat finish that stays vibrant for a long time—inside and out—with little care. With an array of colors to select, you’ll find windows and patio doors to match 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 count on and beauty that stands out. Also, to top things off, they are supported by our limited warranty—one of the strongest 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 visit your local Pella showroom to see 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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