The Pella® Impervia® line blends style with durability in fiberglass windows and patio doors that, as the name suggests, are impervious to practically all types of weather.
Impervia’s toughness comes from Duracast®, our special fiberglass composite. It’s one of the toughest and most durable materials obtainable for fiberglass windows and patio doors1. Duracast defends against conditions from severe heat to subzero cold, making Pella Impervia windows and exterior doors great for all climates.
The outstanding insulating properties of our fiberglass replacement windows and patio doors boost your home’s livability and help save on energy. Optional foam-insulating frames could 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 a long time—inside and out—with little care. With a wide selection of colors to explore, you’ll find windows and patio doors to reflect your home’s design, inside and out. Our environmentally friendly paint process essentially eliminates toxic chemicals, helping the air inside your room stay healthy.
Pella Impervia brings quality that you can rely 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