Service Areas
Serving 29 Cities Across the Inland Empire
Southern California Backflow is based in Calimesa, CA and serves residential, commercial, and HOA properties throughout San Bernardino and Riverside Counties — available 7 days a week.
29
Cities Served
15
San Bernardino County Cities
14
Riverside County Cities
Click on any city to see available services, or click a specific service link on each city card. All services include direct test report filing with your local water district.
San Bernardino County
Yucaipa Valley Water District
Riverside County
Beaumont Cherry Valley Water District
Riverside County
Beaumont Cherry Valley Water District
Riverside County
City of Banning Water Department
San Bernardino County
East Valley Water District
San Bernardino County
City of Redlands Water Department
San Bernardino County
City of Loma Linda Water Department
San Bernardino County
East Valley Water District
Riverside County
Eastern Municipal Water District
San Bernardino County
City of San Bernardino Municipal Water Department
San Bernardino County
Riverside Highland Water Company
San Bernardino County
City of Colton Public Utilities
San Bernardino County
Fontana Water Company
Riverside County
Riverside Public Utilities
Riverside County
Eastern Municipal Water District
San Bernardino County
Cucamonga Valley Water District
San Bernardino County
City of Ontario Utilities
Riverside County
Mission Springs Water District
Riverside County
City of Corona Water Division
Riverside County
Western Municipal Water District
Riverside County
Western Municipal Water District
Riverside County
Western Municipal Water District
San Bernardino County
West Valley Water District
San Bernardino County
Running Springs Water District
Services Available in All 29 Cities
Backflow Testing
Annual certified testing required by local water districts. We test, document, and report results directly to your water authority.
Backflow Repair
Fast diagnosis and repair of failed, damaged, or malfunctioning backflow prevention assemblies.
Backflow Installation
Professional installation of new backflow preventers for residential, commercial, and irrigation systems.
Backflow Replacement
Full replacement of aging, corroded, or non-compliant backflow prevention devices.
Annual Compliance Management
We track your testing deadlines, schedule annually, and file all reports with your water district — so you never miss a compliance date.
Don't See Your City?
We may still be able to help. Call us at (909) 723-2478 to ask about service availability in your area.