The Energy Star program is a government/industry partnership helping homeowners protect the environment through superior energy efficiency.

Each of us has a responsibility to protect our environment. When purchasing Energy Star windows and doors, consumers play an important role in reducing greenhouse gas emissions and protecting our environment for future generations.

International Window proudly participates in the Energy Star program. Windows and doors, which have met Energy Star guidelines, are identified with the Energy Star label in accordance with the program. By utilizing various glazing options, IWC manufactures qualified Energy Star products for the Northern, Central and Southern regions. The Energy Star program, in which International Window participates, plays a significant role in the industry for both the consumer and the manufacturer. This program educates consumers on which products are most energy efficient and best suited for their homes. Energy Star labeled products use the newest technologies and developments in glass coatings and framing materials and must meet stringent requirements for energy efficiency.