Cal Water Alerts

Westlake

Weekend Maintenance 9/6-9/7

Cal Water will be undergoing a scheduled maintenance from September 6, 2025, to September 7, 2025, resulting in some services being inaccessible. Learn More

Westlake Addresses and Hours
Address Hours
2524 Townsgate Road Suite A Westlake Village, CA 91361 Mon. to Fri.
7:00 a.m. to 7:00 p.m.
Contact us via email

In-person service is not available at this location; however, our customer service representatives are happy to serve you by phone or email. In-person and other payment options are detailed on the Payment Options page.

District Manager
District Manager
Mike Jasper

Main Contact After-Hours Contact
(805) 497-2757 (805) 497-2757

Westlake News

Westlake Resources

Cal Water’s Westlake District

Serving a portion of Thousand Oaks

Cal Water’s Westlake District was formed in 1983 with the purchase of the Westlake Water Company. To meet the needs of our customers, we purchase imported surface water from the Metropolitan Water District of Southern California (MWD) through Calleguas Municipal Water District. Our system includes 105 miles of pipeline, six storage tanks, and 23 booster pumps. We proactively maintain and upgrade our facilities to ensure a reliable, high-quality supply.

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Frequently Asked Questions

What forms of payment does Cal Water accept?

You can pay your Cal Water bill with cash, a check, a money order, a credit card, a debit card, or bank account. However, available payment options vary depending on the payment location or method. For more detail, see the Payment Options page.

What is the Customer Assistance Program (CAP)?

Cal Water offers a Customer Assistance Program (CAP — formerly LIRA) to customers who meet income guidelines. Qualifying customers receive a discount on their monthly service charge. You can visit the CAP page to see if you qualify and download an application form. If you live in a single-family residence, you can also apply online.

What should I do if my bill seems higher than usual?

See the High Bills page for more information and suggestions.

How do I turn off the water supply to my house in the event of a break in my plumbing or a repair?

You can interrupt the flow of water to your home by turning off your house valve. House valves are usually located beneath a faucet outside the home, most typically near the faucet for the garden hose. If you cannot find your house valve, please contact your local Customer Center for assistance.

Payment Mailing Address

California Water Service
P.O. Box 7229

San Francisco, CA 94120-7229

Automated Payment Number

(888) 598-9824