The Pella® Impervia® line couples style with durability in fiberglass windows and patio doors that, as the name suggests, are impervious to nearly all types of weather.
Impervia’s strength comes from Duracast®, our patented fiberglass composite. It’s one of the toughest and most durable materials in the market for fiberglass windows and patio doors1. Duracast stands up to temperatures from intense heat to frigid cold, making Pella Impervia windows and exterior doors great for all seasons.
The superior insulating qualities of our fiberglass replacement windows and patio doors boost your home’s coziness and help conserve energy. Optional foam-insulating frames could be installed on 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 years—inside and out—with little upkeep. With an array of colors to choose from, you’ll find windows and patio doors to complement your home’s design, inside and out. Our environmentally friendly paint process virtually removes toxic chemicals, helping the air inside your house stay clean.
Pella Impervia features quality that you can count on and beauty that stands out. Plus, to top things off, they are backed by our limited warranty—one of the best in the industry.2