Fiberglass Windows

Created 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 hotter days and stand up to winter weather, and are offered in a variety of color options to complement your taste.

At Pella of Baltimore, we have learned that Pella Impervia windows are a fitting choice for homeowners who want the warm look of a painted wood window with the top-of-the-line durability and notable energy efficiency that come with a fiberglass window. Backed by our industry-leading warranty, Pella Impervia replacement windows demand little to no maintenance, resulting in remarkable beauty and performance season after season.

Pella® Impervia® Series

  • Made from Duracast®—the strongest, most durable material you can get in windows
  • Impressive performance
  • The stunning 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 local Pella showroom or click below to schedule a complimentary, in-home consultation and find the windows that best fit your home.