Pella® Impervia® Series Windows and Doors

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

Impervia’s durability comes from Duracast®, our patented fiberglass composite. It’s one of the strongest and most well-built materials available for fiberglass windows and patio doors1. Duracast stands up to conditions from extreme heat to freezing cold, making Pella Impervia windows and exterior doors excellent for all regions.

The superior insulating properties of our fiberglass replacement windows and patio doors boost your home’s livability and help conserve energy. Optional foam-insulating frames could be added to 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 a long time—inside and out—with little care. With an array of colors to select, you’ll find windows and patio doors to complement your home’s style, inside and out. Our environmentally friendly paint process virtually gets rid of toxic chemicals, helping the air inside your room stay clean.

Pella Impervia offers quality that stands up and beauty that stands out. Also, to top things off, they are supported by our limited warranty—one of the best in the industry.2

Impervia Series
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to plan a no-cost, in-home consultation or stop by your convenient Pella showroom to check out 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.