Pella® Impervia® Series Windows and Doors

The Pella® Impervia® line blends style with endurance 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 strongest and most durable materials obtainable for fiberglass windows and patio doors1. Duracast stands up to conditions from extreme heat to subzero cold, making Pella Impervia windows and exterior doors exceptional for all seasons.

The impressive insulating properties of our fiberglass replacement windows and patio doors enhance your home’s comfort and help reduce energy use. Optional foam-insulating frames could 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 stays looking great for a long time—inside and out—with little care. With many colors to select, you’ll find windows and patio doors to complement your home’s look, inside and out. Our environmentally friendly paint process practically removes toxic chemicals, helping the air inside your home stay healthy.

Pella Impervia offers 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 best in the industry.2

Pella® Impervia® Series
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 convenient Pella showroom to look at 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.