Certified Backflow Services Across Southern California

County Backflow is your trusted partner for comprehensive backflow testing, repair, and installation services throughout Southern California. With over 30 years of experience and licensed C-36 contractor credentials, we serve property managers, homeowners, commercial facilities, and government installations across four major counties.

Our extensive service area includes:

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  San Diego County: San Diego, Carlsbad, Oceanside, San Marcos, Chula Vista, La Mesa, El Cajon, Escondido, Vista, Encinitas, and all 30+ water authorities
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  Riverside County: Riverside, Corona, Murrieta, Temecula, Menifee, Lake Elsinore, and surrounding communities
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  Orange County: Anaheim, Irvine, Santa Ana, Huntington Beach, Garden Grove, Mission Viejo, and adjacent areas
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  Los Angeles County: Select areas throughout LA County—contact us to confirm service availability in your location

Whether you need annual compliance testing to avoid water shutoffs, emergency repair services, or complete backflow system replacement, our licensed specialists deliver professional solutions across all jurisdictions. We're approved by every water district in our service area and handle all compliance documentation, so you can focus on what matters most.

Four-county coverage. One trusted partner. Guaranteed compliance across Southern California.