Fiberglass Windows

Made from patented Duracast® fiberglass composite, Pella® Impervia® fiberglass windows are a budget-friendly, low-maintenance alternative to wood replacement windows. They prevent warping in the heat and shield your home from winter weather, and are offered in a variety of color options to complement your taste.

At Pella of Falls Church, we have learned that Pella Impervia windows are a fitting choice for homeowners who want the impressive look of a painted wood window with the top-notch dependability and notable energy efficiency that come with a fiberglass window. Covered by our industry-leading warranty, Pella Impervia replacement windows require very little maintenance, ensuring exceptional beauty and performance year after year.

Pella® Impervia® Series

  • Constructed from Duracast®—the strongest, most durable material available in windows
  • Impressive performance
  • The high-end look of a painted wood window
  • ENERGY STAR®-rated options save energy
Available Styles
  • Awning
  • Casement
  • Double-Hung
  • Single-Hung
  • Sliding
  • Basement
  • Bay and Bow

Look into fiberglass windows at your closest Pella showroom or click below to plan a complimentary, in-home consultation and discover the windows that are right for your home.