Call or click: We’re here to help

Mesa Water’s goal is to provide a safe, reliable and abundant water supply to the communities it serves through outstanding customer service. Since 1960, Mesa Water has provided high-quality water that meets or is better than state and federal drinking water standards.


Mesa Water’s lobby is closed to the public,
however, our staff is here to help!

Our business hours continue to be:
Monday – Thursday 7:30 a.m. – 5 p.m.,
and Friday 8 a.m. – 5 p.m. 

For water bill payments, Mesa Water customers can:

  • Register for online bill pay service at
  • Pay by phone at 877.493.5093
  • Contact Customer Service at 949.631.1200 or This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Use the payment drop box located outside of Mesa Water's office building

As always, Mesa Water District is fully engaged
in ensuring your tap water is clean, safe and reliable 24/7.

Mesa Water’s Customer Services counter is located in the lobby of our offices at 1965 Placentia Ave. in Costa Mesa. Representatives are available in person or via phone to help customers start or stop service, pay a bill, or address questions or concerns.

Office Hours:
Monday-Thursday 7:30 a.m. to 5:00 p.m.
Friday 8:00 a.m to 5:00 p.m.

Call Customer Services at 949.631.1200.

In case of emergency during after hours, please call 949-631-1200.

If you have a water leak or other water related emergency, please press “9” and you will be transferred to the Costa Mesa Police Department for assistance. Or, you may call them directly at 714-754-5251

For all other non-urgent inquiries, including billing questions or to stop or start water service, please call 949-631-1200 during regular business hours.

Please note: Mesa Water requires a 2-day notice to start or stop water service to your property.