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Pella® Impervia® Series Windows and Doors

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

Impervia’s toughness comes from Duracast®, our patented fiberglass composite. It’s one of the toughest and most durable materials obtainable for fiberglass windows and patio doors1. Duracast resists conditions from severe heat to frigid cold, making Pella Impervia windows and exterior doors excellent for all climates.

The outstanding insulating properties of our fiberglass replacement windows and patio doors improve your home’s comfort and help conserve energy. Optional foam-insulating frames can be included on these ENERGY STAR®-certified windows and patio doors.

Pella Impervia windows and sliding patio doors are delivered prefinished with a factory powder-coat finish that stays vibrant for the long haul—inside and out—with little upkeep. With a wide selection of colors to explore, you’ll find windows and patio doors to complement your home’s look, inside and out. Our environmentally friendly paint process practically eliminates toxic chemicals, helping the air inside your room stay clean.

Pella Impervia brings quality that you can rely on and beauty that stands out. And to top things off, they are backed 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 schedule a no-cost, in-home consultation or stop by your nearby 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.