Backflow Installation in Claremont
Claremont is an affluent, tree-lined college town at the base of the San Gabriel Mountains. Known for the Claremont Colleges, historic residential properties, and mature landscaping that often relies on irrigation backflow assemblies. Served by Golden State Water Company.
Golden State Water Company — Backflow Installation Requirements
Golden State Water Company enforces annual backflow testing requirements for all properties in Claremont. Non-compliant properties may receive notices and risk water service interruption. All backflow testing must be performed by a certified tester, and results filed directly with Golden State Water Company.
Ontario Backflow Tests files your backflow installation results directly with Golden State Water Company on your behalf — no forms, no trips to the water department. You receive a compliance confirmation after every visit.
Why Claremont Property Owners Choose Ontario Backflow Tests
500 N Sultana Ave, Ontario, CA 91764
909-787-1122
Ontario@thebackflowtesters.com
Backflow Services Available in Claremont, CA
All services include direct Golden State Water Company report filing — no paperwork for you.
Backflow Testing
Annual certified backflow testing required by California law. We test your assembly, certify results, and file directly with your water district.
Learn More →Backflow Repair
On-site backflow repair when your device fails inspection. We carry parts for all major brands and retest on the same visit.
Learn More →Backflow Installation
Professional installation of new backflow prevention assemblies for residential, commercial, and industrial properties.
Learn More →Backflow Replacement
Full replacement of aging or failed backflow prevention devices. We remove, install, test, and file all paperwork.
Learn More →Annual Compliance Management
We track your annual testing deadlines, schedule appointments, and file reports — so your properties stay compliant year after year.
Learn More →Claremont Backflow Installation FAQs
Also Serving Cities Near Claremont
Our Office Location
We're based in Ontario, CA — just 8–10 miles from Claremont. No travel surcharge, same-day availability.
Book Backflow Installation in Claremont
Available 24/7. Results reported directly to Golden State Water Company — no paperwork for you.
Or call us directly: 909-787-1122