Pella® Impervia® Series Windows and Doors

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

Impervia’s toughness comes from Duracast®, our special fiberglass composite. It’s one of the toughest and most well-built materials obtainable for fiberglass windows and patio doors1. Duracast defends against conditions from intense heat to freezing cold, making Pella Impervia windows and exterior doors excellent for all climates.

The superior insulating properties of our fiberglass replacement windows and patio doors improve your home’s coziness and help reduce energy use. Optional foam-insulating frames could be included on these ENERGY STAR®-certified windows and patio doors.

Pella Impervia windows and sliding patio doors come prefinished with a factory powder-coat finish that maintains its looks for a long time—inside and out—with little maintenance. With an array of colors to explore, you’ll find windows and patio doors to match your home’s look, inside and out. Our environmentally friendly paint process virtually removes toxic chemicals, helping the air inside your home stay clean.

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

Impervia Series
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to plan a free, in-home consultation or come by your local 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.
Live Chat
I can help with your window or door replacement questions.