What is the Average Cost of Fiberglass Windows? Average Fiberglass Windows Price

Fiberglass windows are more expensive when compared to vinyl windows. Although they are roughly the same quality as vinyl windows, they are more durable and are thought to last longer than vinyl windows do. Fiberglass windows are able to be installed using the same methods of vinyl window installation. For an average sized fiberglass window, the average price is roughly $300. This average does not include the installation costs, though, which can add a few hundred to your bill.