Choose energy efficient products with the ENERGY STAR label
The ENERGY STAR Window Program is a voluntary partnership between the U.S. Department of Energy and participating window manufacturers. All ENERGY STAR qualified windows must be NFRC (National Fenestration Rating Council) rated, certified and labeled for both U-factor and Solar Heat Gain. The U.S. Department of Energy offers a comprehensive guide to the selection process for windows based upon energy efficiency.

ENERGY STAR labeled windows are forty percent more efficient than those required under most common national building codes. Performance requirements for ENERGY STAR qualifying window products are tailored to meet the energy needs of the country's different climate regions - northern, central and southern.

By choosing ENERGY STAR labeled windows you can cut your heating and cooling costs, help make your home more comfortable and reduce air pollution all at the same time. In fact, your investment in ENERGY STAR qualifying windows will pay for itself over time, and then the savings is money in the bank every year.

The ENERGY STAR label - the symbol for energy efficiency - makes choosing high performance, energy efficient windows simple.*

*ENERGY STAR Windows Fact Sheet

Learn more about Energy Star