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Window Information for Professionals

MIWD Tops R-5 List

MI Windows and Doors was the top manufacturer of R-5 Windows for 2011, according to the Department of Energy’s High Performance Windows Volume Purchase Program.

Thermal Ratings

Check the thermal ratings that are available for the energy efficient windows and patio doors made by MI Windows and Doors.

Gratz SHARP Award

MIWD's Gratz manufacturing receives Safety and Health Achievement Recognition Program (SHARP) award from OSHA in recognition of its safety systems.

Dealer Program

Interested in becoming a dealer? We are looking for window and door professionals who like to save their clients' money with energy efficient windows and doors.