Backflow Testing Services

Protect your property's water supply with certified backflow testing services from Southern California's most trusted specialists. With over 30 years of experience, we guarantee compliance, eliminate administrative hassles, and provide the peace of mind that comes from working with licensed C-36 contractor professionals.

Whether you manage a single property or an entire portfolio, our comprehensive backflow testing services ensure your water systems meet all regulatory requirements while preventing costly water shutoffs and contamination risks.

What Is Backflow Testing?

Backflow testing is a mandatory inspection of backflow prevention assemblies that protect your drinking water from contamination. These devices—including Reduced Pressure Zone (RPZ) assemblies, Double Check valves, and Pressure Vacuum Breakers—prevent water from flowing backward into the public water supply.

Annual testing verifies that your backflow prevention device is functioning properly, maintaining the pressure differentials required to keep contaminated water separate from your clean water supply. State and local water authorities require certified testing to protect public health and maintain water quality standards across entire communities.

Our certified cross-connection specialists use calibrated differential gauges to perform thorough inspections, documenting every measurement and ensuring your assemblies meet or exceed all regulatory standards. We test domestic water systems, irrigation lines, fire service connections, and commercial process systems—handling everything from residential properties to large-scale industrial facilities.

Why Annual Backflow Testing Matters

Water districts take backflow prevention seriously because a single failure can contaminate the water supply for thousands of people. That's why compliance isn't optional—it's a legal requirement that carries significant consequences when ignored.

Property owners face water service shutoffs, daily fines, and potential liability if contamination occurs through a non-compliant or failed backflow device. For businesses, a water shutoff means closing your doors until testing is complete and approved. For property managers, it creates tenant emergencies and potential legal exposure.

Beyond compliance, annual testing identifies problems before they become expensive emergency repairs. A small issue caught during routine testing might cost $200 to repair, while emergency replacement of a completely failed assembly can run $2,000 to $5,000 or more—plus the cost of lost business or tenant disruption.

We handle all documentation and submit results directly to your water authority, creating a complete compliance record that protects you during inspections, insurance claims, or property transactions.

Our Certified Backflow Testing Process

Our systematic approach ensures accurate results, guaranteed compliance, and minimal disruption to your operations:

Scheduling and Coordination

We work around your schedule, offering flexible appointment times including after-hours service for commercial properties. Our team confirms all details in advance, identifies device locations, and ensures clear access to testing sites.

Professional Inspection

Certified technicians arrive with calibrated equipment and complete documentation systems. We inspect each backflow assembly, checking for leaks, corrosion, or visible damage before beginning formal testing procedures.

Precision Testing

Using state-approved differential pressure gauges, we test all check valves and relief valves according to manufacturer specifications and ASSE/AWWA standards. We record opening and closing pressures, verify proper operation, and document pass or fail results for every component.

Immediate Diagnosis

When assemblies fail testing, we diagnose the problem on-site and provide clear recommendations. Minor repairs often happen the same day, while major issues receive detailed replacement proposals with timeline and cost information.

Complete Documentation

We tag each tested device with current certification information and provide you with complete test results, including serial numbers, model information, and all pressure readings. Our team submits certificates directly to your water district, handling all administrative requirements.

Follow-Up and Planning

We schedule your next annual test, provide maintenance recommendations, and flag any assemblies approaching end-of-life that may need replacement in coming years—helping you plan budgets and avoid surprises.

Why Choose County Backflow for Testing Services

Three Decades of Proven Expertise
Since our founding, we've completed thousands of backflow tests across Southern California. Our certified specialists stay current with all regulatory changes, manufacturer updates, and industry best practices.

Licensed C-36 Contractor
Unlike basic testing-only companies, our C-36 plumbing contractor license means we can test, repair, and replace backflow assemblies—providing complete service from a single, accountable source. When testing reveals problems, we fix them immediately rather than sending you to another contractor.

Trusted by Major Clients
Property management firms like Sea Haven and DMG rely on us for portfolio-wide compliance management. Commercial clients including Amazon trust us with their critical water systems. Government facilities, schools, and military bases depend on our precision and professionalism.

Guaranteed Compliance
We guarantee that your testing meets all water district requirements and that documentation is submitted correctly and on time. If any issues arise with district approval, we resolve them at no additional cost to you.

Same-Day Emergency Service
When you receive a compliance notice with a tight deadline or discover a failed assembly, we respond immediately. Our emergency service prevents water shutoffs and keeps your property operational.

Complete Paperwork Handling
We know you have better things to do than chase compliance certificates and water district submissions. Our team handles every detail of documentation, from test forms to district filing to providing you with complete records for your files.

Comprehensive Testing for Every Property Type

Our backflow testing services adapt to your specific needs:

Commercial Properties receive scheduled testing with minimal business disruption, after-hours availability, and dedicated account management for multi-location facilities.

Residential Properties get simple, straightforward service with clear communication, transparent pricing, and help understanding water district requirements.

Property Management Portfolios benefit from centralized scheduling, batch processing across multiple addresses, consolidated billing, and compliance tracking for entire property groups.

Industrial and Government Facilities receive the detailed documentation, safety protocols, and security clearances required for regulated environments.

Start Your Compliance Today

Don't risk water shutoffs, fines, or contamination liability. Our certified specialists make backflow testing simple, affordable, and completely stress-free.

We handle scheduling, testing, repairs, documentation, and district submission—everything you need for guaranteed compliance. With over 30 years protecting Southern California's water supply, we bring the expertise and reliability that property owners and managers trust.

Schedule your annual backflow test today. Our team responds quickly with flexible scheduling, transparent pricing, and the professional service that's made us the region's most trusted backflow specialists.

Let's ensure your property stays compliant, your water stays safe, and your operations continue without interruption.