Fiberglass Windows

Crafted from patented Duracast® fiberglass composite, Pella® Impervia® fiberglass windows are a budget-friendly, low-maintenance alternative to wood replacement windows. They resist warping in the hotter days and stand up to winter weather, and are offered in a selection of color options to complement your home’s design.

At Pella of Mt. Pleasant, we have discovered that Pella Impervia windows are a fitting choice for homeowners who want the stunning look of a painted wood window with the superior reliability and impressive energy efficiency that come with a fiberglass window. Backed by our industry-leading warranty, Pella Impervia replacement windows require very little maintenance, resulting in remarkable beauty and performance year after year.

Pella® Impervia® Series

  • Made from Duracast®—the strongest, most durable material you can get in windows
  • Exceptional performance
  • The stunning 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 local Pella showroom or click below to plan a no-cost, in-home consultation and find the windows that meet the needs of your home.



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