Pella® Impervia® Series Windows and Doors

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

Impervia’s strength comes from Duracast®, our special fiberglass composite. It’s one of the toughest and most durable materials obtainable for fiberglass windows and patio doors1. Duracast defends against temperatures from severe heat to frigid cold, making Pella Impervia windows and exterior doors great for all regions.

The outstanding insulating features of our fiberglass replacement windows and patio doors enhance your home’s coziness and help save on energy. Optional foam-insulating frames may be installed on these ENERGY STAR®-certified windows and patio doors.

Pella Impervia windows and sliding patio doors arrive prefinished with a factory powder-coat finish that maintains its looks for the long haul—inside and out—with little maintenance. With a wide selection of colors to select, you’ll find windows and patio doors to match your home’s look, inside and out. Our environmentally friendly paint process practically removes toxic chemicals, helping the air inside your home stay healthy.

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 best in the industry.2

Impervia Series
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to plan a free, in-home consultation or stop by your convenient 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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