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Fiberglass Windows

Crafted from patented Duracast® fiberglass composite, Pella® Impervia® fiberglass windows are a cost-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 types to match your taste.

At Pella of Bloomington, IN, we have found that Pella Impervia windows are a fitting choice for homeowners who want the stunning look of a painted wood window with the superior durability and excellent energy efficiency that are a part of a fiberglass window. Backed by our industry-leading warranty, Pella Impervia replacement windows need almost no maintenance, offering striking beauty and performance season after season.

Pella® Impervia® Series

  • Created from Duracast®—the strongest, most durable material you can have in windows
  • Excellent performance
  • The quality 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

Look into fiberglass windows at your closest Pella showroom or click below to plan a complimentary, in-home consultation and find the windows that meet the needs of your budget.