Customer Service

Office Address City State Postal Code Phone FAX
Business Office 1 1st Ave S Great Falls MT 59401 406-791-7500 406-791-7560
Cascade     MT   800-570-5688  
Billing and Credit 1 1st Ave S Great Falls MT 59401 406-791-7510 406-791-7560
Emergency Service, Leaks, No Heat 1 1st Ave S Great Falls MT 59401 406-791-7510 406-791-7560
Before you Dig Line Location         800-424-5555  
Mailing Address PO Box 2229 Great Falls MT 59403 406-791-7510 406-791-7560