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 stand up to winter weather, and are available in a selection of color choices to accompany your home’s design.

At Pella of South Portland, we have found that Pella Impervia windows are a fitting choice for homeowners who want the impressive look of a painted wood window with the top-of-the-line reliability and impressive energy efficiency that are a part of a fiberglass window. Backed by our industry-leading warranty, Pella Impervia replacement windows require little to no maintenance, offering striking beauty and performance season after season.

Pella® Impervia® Series

  • Made from Duracast®—the strongest, most durable material you can have in windows
  • Impressive 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

Discover fiberglass windows at your closest Pella showroom or click below to book a no-cost, in-home consultation and find the windows that meet the needs of your budget.



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