The Pella® Impervia® line couples style with durability in fiberglass windows and patio doors that, as the name implies, 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 resists weather from extreme heat to subzero cold, making Pella Impervia windows and exterior doors great for all seasons.
The impressive insulating features of our fiberglass replacement windows and patio doors improve your home’s coziness and help reduce energy use. Optional foam-insulating frames may be included on 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 upkeep. With an array of colors to choose from, you’ll find windows and patio doors to match your home’s look, inside and out. Our environmentally friendly paint process essentially gets rid of toxic chemicals, helping the air inside your house stay chemical-free.
Pella Impervia features quality that you can count on and beauty that stands out. Plus, to top things off, they are supported by our limited warranty—one of the most thorough in the industry.2