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Fiberglass Windows

Crafted 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 shield your home from winter weather, and are offered in an array of color options to match your taste.

At Pella of Shrewsbury, 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 top-of-the-line durability and excellent energy efficiency that are a part of a fiberglass window. Backed by our industry-leading warranty, Pella Impervia replacement windows demand very little maintenance, resulting in striking beauty and performance year after year.

Pella® Impervia® Series

  • Created from Duracast®—the strongest, most durable material available in windows
  • Exceptional performance
  • The high-end 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

Discover fiberglass windows at your closest Pella showroom or click below to book a complimentary, in-home consultation and uncover the windows that are right for your home.