Pella® Impervia® Series Windows and Doors

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

Impervia’s durability comes from Duracast®, our unique fiberglass composite. It’s one of the strongest and most reliable materials in the market for fiberglass windows and patio doors1. Duracast resists conditions from intense heat to freezing cold, making Pella Impervia windows and exterior doors exceptional for all regions.

The outstanding insulating features of our fiberglass replacement windows and patio doors boost your home’s coziness and help save on energy. Optional foam-insulating frames may 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 years—inside and out—with little care. With an array of colors to choose from, you’ll find windows and patio doors to reflect your home’s style, inside and out. Our environmentally friendly paint process virtually removes toxic chemicals, helping the air inside your room stay clean.

Pella Impervia brings quality that stands up and beauty that stands out. Plus, to top things off, they are backed by our limited warranty—one of the most thorough in the industry.2

Impervia Series
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to schedule a complimentary, in-home consultation or come by your nearby Pella showroom to look at these windows and patio doors up close.





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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