Q. Who makes the BetterBilt window brand?
BetterBilt windows are/were manufactured by MI Windows & Doors, which is headquartered in Gratz, Pennsylvania.
If you have questions about BetterBilt windows that you own, you can call MI Windows & Doors customer service at the following phone number: 717-365-2500.
BetterBilt was previously an independent company before being acquired by MI Windows & Doors in 1999.