Window Concepts proudly carry the Energy Star label and are American Architectural Manufacturers Association (AAMA) and National Fenestration Rating Council (NFRC) tested and certified.  Window Concepts products meet or exceed ENERGY STAR requirements for energy efficiency in all climate regions.

By Selecting Window Concepts, you are buying technologically advanced windows with unsurpassed energy efficiency that will deliver years of energy savings.

The ENERGY STAR LABEL was created by the Environmental Protection Agency (EPA) and the U.S. Department of Energy (DOE) to help consumers quickly and easily identify windows and other products that save energy.