The Pella® Impervia® line couples style with durability 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 unique fiberglass composite. It’s one of the sturdiest and most reliable materials obtainable for fiberglass windows and patio doors1. Duracast stands up to conditions from severe heat to freezing cold, making Pella Impervia windows and exterior doors excellent for all seasons.
The superior insulating features of our fiberglass replacement windows and patio doors enhance your home’s livability and help conserve energy. Optional foam-insulating frames can 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 vibrant for the long haul—inside and out—with little upkeep. With a wide selection of colors to select, you’ll find windows and patio doors to reflect your home’s style, inside and out. Our environmentally friendly paint process essentially removes toxic chemicals, helping the air inside your room 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