MyMesaWater: Reliable Water Service, Made Easier.

 

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We’re excited to share that MyMesaWater, Mesa Water’s new online billing and account management system is here! 

This upcoming upgrade is designed to make managing your water service easier and more convenient. With MyMesaWater, you’ll be able to view your account, make payments and access helpful tools—all in one modern, user-friendly platform. 

What This Means for You: 

  • A refreshed online portal with improved features and navigation 
  • Easier access to billing information and payment history 
  • New self-service options, including online Move-In/Move-Out requests 
  • The ability to manage multiple accounts with a single login 

You may also notice some updates to your bill format in the future, designed to make it clear and easy to read.

Learn how to login to your MyMesaWater portal

We’re Here to Help 

We’re committed to making this transition as smooth as possible. If you have any questions in the meantime, our team is always here to assist. Contact our Customer Service Department at (949) 631-1200 or stop by our Customer Service desk Monday-Thursday, 7:30 a.m. – 5 p.m. and Friday, 8 a.m. – 3:30 p.m. 

Thank you for being a valued Mesa Water customer. We look forward to bringing you this enhanced experience soon. 

Frequently Asked Questions

What is MyMesaWater?

MyMesaWater is Mesa Water’s new online billing and account portal. It offers a more modern and convenient way to view bills, make payments and manage your account online. Mesa Water customers are encouraged to use MyMesaWater for the easiest and most convenient way to manage their accounts.

When will MyMesaWater be available?

MyMesaWater will launch June 3, 2026. Customers with an email address on file will receive an email with simple instructions once the system is live, and all customers will also receive information by postcard. If you previously used online bill pay via InvoiceCloud, your account information and logins will remain the same.

Do I need to do anything right now?

No action is required at this time. Mesa Water will provide additional guidance once MyMesaWater is available for customer access.

Do I have to use MyMesaWater?

While use of MyMesaWater is not required, Mesa Water customers are encouraged to explore the new MyMesaWater portal. It is designed to provide the easiest and most convenient way to manage your account, access billing information, make payments and use self service tools.

Will my bill statement change?

Yes, you will notice your Mesa Water bill has been modernized as part of this upgrade. Customers can now use their bill to compare usage from prior billing periods. These changes are designed to make your bill easy to read and understand.

Will my water service be affected?

No. This upgrade only affects how you manage your account online. Your local, reliable water service will continue as normal.

What if my email address on file is outdated?

If you believe your email address is not on file with Mesa Water or outdated, please contact Customer Service so it can be updated.

Questions for Customers Currently Using InvoiceCloud

If I currently use InvoiceCloud to manage my account and pay my bill, will I need to start over?

No. Customers who currently use InvoiceCloud will not need to start over. Your account information and billing details will carry over as part of the transition to MyMesaWater.

Will I need to create a new account or new login to access the system?

When MyMesaWater is ready, you will receive an email with a link to complete the sign up process. Your account information and billing details will carry over as part of the transition to MyMesaWater.

Will my payment history still be available?

Yes, your billing and payment history up to two years back will continue to be available in the MyMesaWater system.

Will my AutoPay settings and saved payment methods transfer?

Existing AutoPay settings and payment information will carry over for most customers. Additional guidance will be shared if any action is needed.

What if I have multiple accounts?

MyMesaWater allows customers to manage multiple accounts in the same manner as the existing platform based on InvoiceCloud. If you wish to utilize this feature, more information/instructions will be available to guide you through the process via our Customer Service department.

Who can I contact with questions?

Mesa Water’s Customer Service team is here to help:

  • Phone: (949) 631 1200
  • In person: 1965 Placentia Avenue Costa Mesa, CA 92627
    • Monday–Thursday: 7:30 a.m. – 5:00 p.m.
    • Friday: 8:00 a.m. – 3:30 p.m.