Energy-efficient windows help reduce carbon emissions of homes and buildings, contributing to efforts to cut harmful greenhouse gas emissions affecting climate change.

There is a tremendous need to educate consumers on the benefits of energy-efficient windows in their homes, lowering monthly utility costs, improving comfort, providing natural light, keeping heat out and cool air in. 

For too long, energy-efficient windows have been overlooked and deemed too costly when making home improvements. Through the Efficient Windows Collaborative, we explain why and how windows can be cost effective and energy efficient, saving homeowners money on their utility bills and reducing their carbon footprint. 

Who we are: The Efficient Windows Collaborative is powered by the National Fenestration Rating Council, a nonprofit organization that certifies the energy-performance of windows, doors, and skylights—also called fenestration products. NFRC’s certification program provides fair, accurate, and credible energy-efficiency ratings for fenestration products that helps consumers make informed purchase decisions. NFRC is the only provider of ENERGY STAR® certification for fenestration products.

NFRC’s mission to serve consumers with a comprehensive website to educate homeowners about the importance of energy-efficient, NFRC-rated windows, giving them the tools and resources to make an informed purchase.

Donate today to support more high-performing,
energy-efficient windows in homes across the country

Your tax-deductible gift supports: The Window Selection Tool, the proprietary web portal that helps homeowners find the most efficient window for their home. Consumers have the peace of mind that all windows in the tool are ENERGY STAR® certified. 

Consumer outreach and education efforts, research on emerging technologies to make the next generation of windows even more efficient, partnerships with green building and efficiency organizations, and building resources for homeowners to make informed purchase decisions.