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Fiberglass Windows

Created 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 summer and stand up to winter weather, and are offered in a selection of color choices to match your taste.

At Pella of Natick, we have discovered that Pella Impervia windows are a great choice for homeowners who want the impressive look of a painted wood window with the superior durability and excellent energy efficiency that come with a fiberglass window. Supported by our industry-leading warranty, Pella Impervia replacement windows need little to no maintenance, resulting in striking beauty and performance year after year.

Pella® Impervia® Series

  • Made 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

Take a closer look at fiberglass windows at your nearby Pella showroom or click below to schedule a complimentary, in-home consultation and uncover the windows that are right for your budget.