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Pella® Impervia® Series Windows and Doors

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

Impervia’s strength comes from Duracast®, our special fiberglass composite. It’s one of the toughest and most durable materials in the market for fiberglass windows and patio doors1. Duracast defends against weather from intense heat to freezing cold, making Pella Impervia windows and exterior doors great for all climates.

The impressive insulating properties of our fiberglass replacement windows and patio doors boost your home’s coziness and help reduce energy use. Optional foam-insulating frames may 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 a long time—inside and out—with little upkeep. With an array of colors to choose from, you’ll find windows and patio doors to reflect your home’s look, inside and out. Our environmentally friendly paint process virtually gets rid of toxic chemicals, helping the air inside your home stay healthy.

Pella Impervia offers quality that you can rely on and beauty that stands out. Plus, to top things off, they are secured by our limited warranty—one of the best in the industry.2

Impervia Series dining room windows
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to plan a no-cost, in-home consultation or visit your nearby Pella showroom to see 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.