Water Service

Whom do I call if I need service or help with my water?
GCWW Interactive Voice Response
513-591-7700
GCWW Customer Service
513-591-7700
GCWW Water Emergency
513-591-7700 (option #3)
Mason Customer Service Window
513-229-8500

Greater Cincinnati Water Works has an Interactive Voice Response (IVR) system that provides customers with up-to-the-minute information concerning billing or account activity. It also gives you the opportunity to make a credit card payment over the phone or to provide a meter reading. These options are available 24 hours a day by calling 513-591-7700.

If you have a question or concern that is not addressed through information provided by the IVR, please call during normal business hours to request connection to a Customer Service Representative. If a CSR is not immediately available, the call is placed in a queue and answered in the order received. You will be notified if there is a "wait time" and how long the wait will be. You can then choose to wait or provide a telephone number where you can be reached for a return call.

The Greater Cincinnati Water Works' emergency numbers are staffed 24 hours a day, 7 days a week, to provide quick response to customer needs. Dial 513-591-7700 and select option 3.

In addition, residents and businesses may contact Mason's customer service window in the Mason Municipal Center during normal business hours (8:00 a.m. - 4:30 p.m., Monday through Friday.) The number is 513-229-8500.

Sewer Service

Whom do I call if I need service or help with my sewer?
For sewer emergencies between 8:00 a.m. and 3:30 p.m., Monday through Friday, call the City of Mason Public Utilities Department at 513-513-229-8570. At other times, call the Warren County Communications Center non-emergency number 513-932-4080. (A call-out fee will be charged if the problem is not the fault of the city.)

What if I have questions about my sewer bill?
Information about your sewer bill can be obtained by calling Greater Cincinnati Water Works at 513-591-7700. Though sewer services are provided by the City of Mason, billing is handled by Greater Cincinnati Water Works.