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Fiberglass Windows

Created from patented Duracast® fiberglass composite, Pella® Impervia® fiberglass windows are a cost-effective, low-maintenance alternative to wood replacement windows. They prevent warping in the hotter days and defend against winter weather, and are offered in a variety of color choices to match your home’s design.

At Pella of Muncie, we have found that Pella Impervia windows are a fitting choice for homeowners who want the impressive look of a painted wood window with the superior reliability and impressive energy efficiency that are a part of a fiberglass window. Covered by our industry-leading warranty, Pella Impervia replacement windows require very little maintenance, ensuring striking beauty and performance season after season.

Pella® Impervia® Series

  • Created from Duracast®—the strongest, most durable material you can get in windows
  • Excellent performance
  • The quality 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
Beautiful custom home features Pella fiberglass windows

Look into fiberglass windows at your closest Pella showroom or click below to plan a no-cost, in-home consultation and uncover the windows that best fit your home.