The National Fenestration Rating Council (NFRC) is a nonprofit organization that empowers consumers who are in the market for energy efficient windows, doors, and skylights. When you see the NFRC label on these products, this is your assurance that it’s going to perform the way it’s advertised to perform.
Under our program, windows, doors, and skylights – otherwise known as fenestration products – are independently tested, certified, and labeled. Our label does not recommend which products to buy. It simply provides you with information on how the product will perform so you can decide for yourself if it’s right for you.