Questions About Your Water Service?
Contact us. Golden State Water Company’s customer service
representatives are standing by to assist you with any of your
questions or concerns. For 24-hour emergency and customer service
please call 909-394-2272.
Customer Service
Toll Free: 1-800-999-4033
Local: (909) 394-2272
24 hours, 7 days a week
Corporate Office
To contact us via email, please write us at: customerservice@gswater.com.
Corporate Office Mailing Address
630 E. Foothill Blvd., San Dimas, CA 91773
