Explore energy-efficient Impervia fiberglass windows, delivering strength & long-lasting durability with proven performance & sleek style.

Pella Impervia products are designed to resist air and water infiltration. Our fiberglass has virtually the same expansion and contraction as the glass, almost none.

Pella fiberglass products deliver unmatched strength and lasting durability in a sleek, timeless style. Made of our proprietary fiberglass, the strongest material for windows and patio doors, …

For added strength, durability and reliable water performance, Pella Impervia products feature corner locks and sashes injected with sealant and fastened with screws.

With a heavy-duty, powder-coat finish, Pella fiberglass windows and patio doors resist chipping, chalking and fading — so you never need to paint or refinish.

Shop Pella Impervia Series 96-in x 80-in x 5-5/8-in Jamb Black Fiberglass Right-hand Sliding Patio Door with Low-E argon Glass in the Patio Doors department at Lowe's.com. For nearly …

Pella Impervia windows are made from a proprietary fiberglass called Duracast, designed for extreme durability and low maintenance. They come in styles like double-hung, casement, …

Engineered for unmatched strength and lasting durability with proven performance and sleek style, shop Pella Impervia fiberglass windows online.

Pella® Impervia® windows and patio doors feature a low-maintenance, durable powder-coat paint finish. Dual-color frames allow you to choose a different color for the exterior with a White interior.

Pella’s proprietary fiberglass material has displayed superior strength over wood, vinyl, aluminum, wood/plastic composites, and other fiberglass materials used by leading national brands in …