The Pella® Impervia® line blends style with strength in fiberglass windows and patio doors that, as the name implies, are impervious to practically all types of weather.
Impervia’s durability comes from Duracast®, our unique fiberglass composite. It’s one of the sturdiest and most well-built materials in the market for fiberglass windows and patio doors1. Duracast defends against weather from intense heat to frigid cold, making Pella Impervia windows and exterior doors great for all regions.
The outstanding insulating qualities of our fiberglass replacement windows and patio doors enhance your home’s livability and help reduce energy use. Optional foam-insulating frames can 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 maintains its looks for years—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 design, inside and out. Our environmentally friendly paint process essentially eliminates toxic chemicals, helping the air inside your house stay chemical-free.
Pella Impervia features quality that stands up and beauty that stands out. And to top things off, they are backed by our limited warranty—one of the strongest in the industry.2