Fiberglass Windows

Made 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 shield your home from winter weather, and are available in a variety of color choices to accompany your home’s design.

At Pella of Haverhill, we have found that Pella Impervia windows are a fitting choice for homeowners who want the warm look of a painted wood window with the superior durability and excellent energy efficiency that are inherent to a fiberglass window. Backed by our industry-leading warranty, Pella Impervia replacement windows need almost no maintenance, resulting in remarkable beauty and performance year after year.

Pella® Impervia® Series

  • Created from Duracast®—the strongest, most durable material you can get 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

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



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