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Contact California Water Service Customer Service

How to Reach a Person at California Water Service

Verified Contact Information

Toll-Free Number:

  • 1-877-419-1701
    Customer Assistance Program
Call customer service
Send Message

Customer Service:

  • 1-888-300-5031
    HomeServe
  • 1-781-575-3100
    Transfer Agent

Accounting/ Billing:

  • 1-866-734-0743
    Automated Bill Payment Service
  • 1-888-598-9824

Headquarters:

  • 1-800-750-8200
  • 1-408-367-8200

Legal:

  • 1-855-225-9283

California Water Service Emails:

Accounting/ Billing
Customer Service
Customer Assistance Program
General Info
HomeServe, Sustainability
Investors/ Franchising
Computershare
Legal

How to Contact California Water Service ?

Most Popular Number:

(877) 419-1701
Customer Assistance Program

The California Water Service phone number for customer service inquiries is 1-408-367-8200. The customer care representatives are ready to answer your questions and help you solve your issues. You can call this number to learn more about water quality, conservation, drought, and rates. If you want to pay your bill over the phone, use the automated bill payment service at 1-888-598-9824. The California Water Service contact number for the Privacy Policy and Data Protection inquiries is 1-855-225-9283. If you need to get in touch with the corporate office representatives, dial 1-800-750-8200. The Investor Relations Team is also available at this phone line. For consultation with the Transfer Agent, call 1-781-575-3100.

You can email California American Water customer service using the online form on the official website. Click the Customer Care button at the top of the homepage and select the Contact Us option. Complete the form with the required information and your inquiry details, and click the Send Your Comment button. The customer support expert will contact you after they study your request.
To learn more about the California Water Service Company’s Customer Assistance Program, write to cap@calwater.com. If you have questions regarding the Privacy Policy or want to send a Data Protection request, email it to dpo@calwater.com. The transfer agent is available at web.queries@computershare.com.

The California Water Service Company address to reach their corporate office representatives is California Water Service Group, 1720 North First St., San Jose, California 95112, United States. You can mail official correspondence and documentation to the company’s headquarters. You can also send your questions, concerns, complaints, and suggestions to this office for the customer service team to handle. The same California Water Service address can be used for the Privacy Policy and Data Protection inquiries. To pay your bill by mail, send a check or money order to California Water Service, PO Box 7229, San Francisco, CA 94120-7229, United States. Be sure to include your account number on the check.

The California Water Service hours depend on the district. You can check the operation hours of your district office on the company’s website. Click the Districts button at the top of the homepage and select the Find My District option from the drop-down menu. Find your location in the list to see the office business hours and contact information.
The California City Water Department is open Monday through Thursday from 8:30 a.m. to 5:45 p.m. and every other Friday from 8:30 a.m. to 4:45 p.m. PT. If your inquiry is not urgent, you can email the customer service team via the online form. They will usually respond within one business day.

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Contact Information

California Water Service Website:

California Water Service Help Center:

Corporate Office Address:

California Water Service Group
1720 North First St.
San Jose, California 95112
United States

Other Info (opening hours):

Mailing Address For Invoices:

P.O. Box 49033

San Jose, CA 95161-9033

More contact details

Summary of California Water Service Customer Service Calls

16 TOTAL
CALLS
00:59 AVG CALL
DURATION
0% ISSUES
RESOLVED

Top Reasons of Customers Calls

Consumers Call the Most From

Why Do People Call California Water Service?

Staff Question:

  • “Need service”
  • “I will like to transfer the water service to my name please”
  • “Disconet services”

Payments and Charges Question:

  • “Bill”
  • “Billing”

Request for Information Question:

  • “Question about possible water leaks”

Other Question:

  • “Need statement from may 2024 to April 2025”
  • “Water *** from underground”
  • “Add person to water statement”

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