Fiberglass Window Manufacturers Directory
The market expands and the best manufacturers rise to the top.
Fiberglass windows are not as common as other types of windows today, although more and more window manufacturers are considering producing this new type of window.
Marvin offers a line of replacement windows called Integrity that provides high performance and low maintenance. These fiberglass windows come in single/double hung, glider, and polygon. Read More
Pella offers a line of windows made with Duracast® - a fiberglass composite that is 9 times stronger than vinyl and twice as strong as aluminum. Pella Impervia® replacement windows come in single/double hung, fixed frame, sliders and special shapes. Read More