Made from patented Duracast® fiberglass composite, Pella® Impervia® fiberglass windows are a budget-friendly, low-maintenance alternative to wood replacement windows. Available in a variety of colors, they defend against summertime warping and winter weather.
At Pella of Casper, we have learned that Pella Impervia windows are the right choice for homeowners who want the impressive look of a painted wood window with the top-of-the-line durability and impressive energy efficiency that come with a fiberglass window. Backed by our industry-leading warranty, Pella Impervia replacement windows require almost no maintenance, offering striking beauty and performance for years to come.
