What is all the buzz about these windows?

Serious Windows deliver true, full frame window performance from R-5 to R-11. This performance is up to four times higher than major brands, and ENERGY STAR® requirements . The dramatic reduction in energy bills provides fast payback.

Serious Windows are made by Serious Materials. We make sustainable green building materials that dramatically reduce the impact of the 'built enviroment' on the climate.

High Performance Meets High Style

Serious Windows are the most energy-efficiant residential windows on the market today. Homeowners could save tens of thousands of dollars over the life of thier homes.

Windows are the biggest source of heating and cooling energy loss in homes. By dramatically increasing the R-value for energy efficiency, Serious Windows can generate the significant heating and cooling savings that make them a brilliant home improvement investment.

Serious Windows offer unsurpassed craftmanship and all the options and styling you demand for your home. Available in high performance fiberglass and vinyl frames in a variety of pre-finished colors as well as natural, stainable wood interiors.

Why Fiberglass Windows?