Fiberglass Windows

Crafted from patented Duracast® fiberglass composite, Pella® Impervia® fiberglass windows are a cost-effective, low-maintenance alternative to wood replacement windows. They protect from warping in the summer and defend against winter weather, and are available in a selection of color types to accompany your taste.

At Pella of Greenfield, we have found that Pella Impervia windows are the right choice for homeowners who want the warm look of a painted wood window with the top-of-the-line reliability and impressive energy efficiency that come with a fiberglass window. Backed by our industry-leading warranty, Pella Impervia replacement windows need almost no maintenance, offering striking beauty and performance for years to come.

Pella® Impervia® Series

  • Created from Duracast®—the strongest, most durable material you can have in windows
  • Excellent performance
  • The high-end look of a painted wood window
  • ENERGY STAR®-rated options conserve energy
Available Styles
  • Awning
  • Casement
  • Double-Hung
  • Single-Hung
  • Sliding
  • Basement
  • Bay and Bow
Beautiful custom home features Pella fiberglass windows

Take a closer look at fiberglass windows at your local Pella showroom or click below to schedule a no-cost, in-home consultation and discover the windows that best fit your style.



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