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Pella® Impervia® Series Windows and Doors

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

Impervia’s strength comes from Duracast®, our patented fiberglass composite. It’s one of the strongest and most well-built materials in the market for fiberglass windows and patio doors1. Duracast resists conditions from intense 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 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 arrive prefinished with a factory powder-coat finish that stays looking great for years—inside and out—with little upkeep. With an array 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 house stay clean.

Pella Impervia offers quality that stands up 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 set up a no-cost, in-home consultation or stop by 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.