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 summer and stand up to winter weather, and are carried in an array of color choices to match your taste.

At Pella of Plattsburgh, 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-notch durability and notable energy efficiency that come with a fiberglass window. Covered by our industry-leading warranty, Pella Impervia replacement windows demand little to no maintenance, ensuring remarkable beauty and performance for years to come.

Pella® Impervia® Series

  • Made from Duracast®—the strongest, most durable material you can have in windows
  • Exceptional 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 nearby Pella showroom or click below to plan a complimentary, in-home consultation and discover the windows that meet the needs of your budget.