Pella® Impervia® Series Windows and Doors

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

Impervia’s durability comes from Duracast®, our special fiberglass composite. It’s one of the sturdiest and most reliable materials obtainable for fiberglass windows and patio doors1. Duracast stands up to weather from extreme heat to freezing cold, making Pella Impervia windows and exterior doors exceptional for all climates.

The outstanding insulating properties of our fiberglass replacement windows and patio doors boost your home’s livability and help save on energy. Optional foam-insulating frames may be added to 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 maintains its looks for the long haul—inside and out—with little upkeep. 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 eliminates toxic chemicals, helping the air inside your home stay chemical-free.

Pella Impervia features quality that you can rely on and beauty that stands out. Plus, to top things off, they are supported 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 schedule a free, in-home consultation or visit your local 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.
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