Fiberglass windows provide some of the best thermal performance of any product on the market. The fiberglass material is far less susceptible to expansion and contraction, compared to vinyl, while also being environmentally friendly. Fiberglass has exceptional structural properties as it is highly durable, but also provides a range of design opportunities to suit both modern and traditional styles. Fiberglass windows are available with a tilt and turn option and have unlimited options for paint colour finishes.