"I had a leak under my house and Joe came out within hours. They replaced galvanized pipes within 24 hours, very professional."
Licensed & Insured — LIC # A A 1094194
Backflow Testing & Certification
Annual backflow testing and certification to keep your system compliant with local codes.
Certified backflow testers with regular training
Locally-based team with extensive California experience
Commitment to compliance with local regulations
Comprehensive guidance on prevention measures
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Annual backflow testing is required by law for most residential and commercial properties in California — and failing to test can result in fines or water service interruption. Total UC provides certified backflow testing and certification services throughout the Bay Area, reporting results directly to your local water authority so you stay compliant without the paperwork headache. Our licensed, AWWA-certified testers (LIC # A 1094194) have 15+ years of experience across Alameda, San Mateo, and Contra Costa counties.
Backflow Testing for Every Property Type
We test and certify all backflow prevention assemblies including reduced pressure zone (RPZ) devices, double check valve assemblies (DCVA), pressure vacuum breakers (PVB), and atmospheric vacuum breakers (AVB). Our service covers residential irrigation systems, commercial and multi-family properties, industrial facilities, and fire suppression systems with dedicated backflow devices.
Stay Compliant with Bay Area Water Districts
We work with EBMUD, Cal Water, San Jose Water, and other Bay Area water districts to ensure your test reports are submitted on time. Total UC sends annual reminders so your certification never lapses. Call 415-350-3363 or request a quote online for backflow testing and certification throughout the Bay Area.
Customer Reviews
What Our Clients Say
Trusted by homeowners, developers, and municipalities across the Bay Area.
"Joe was friendly and professional. He fixed my water pressure problem within 20 minutes and followed up the next day."
"They completed sewer line replacement in one day at a reasonable price. Went above expectations with free prep work."
FAQ
Frequently Asked Questions
Backflow preventers must be tested annually to ensure they are functioning properly. Because the devices are prone to wear and tear, this practice ensures they are functional and that drinking water is safe from contaminants.
The cost varies from $100 to $200, depending on your location, the size, and the complexity of the project. If repairs and replacements are required, the price will be higher.
Backflow testing takes around an hour. The time can be longer if repairs, maintenance, or replacements are needed to improve the performance of the backflow preventer.
The optimum pressure for a backflow preventer is 2.0 PSID. Although a reduced pressure backflow prevention assembly operating at 1.5 PSID prevents backflow, it does so below the accepted pressure.
Our Process
How It Works
Three straightforward steps from first call to finished project.
Diagnose & Inspect
We assess the project site, review plans, and use camera inspection or utility locating to understand exactly what's underground before we touch anything.
Quote & Plan
You receive a clear, itemized estimate with no surprises. We handle permits, coordinate with utilities, and schedule the crew around your timeline.
Service & Cleanup
Our self-performing crews complete the work to spec and code. Site is restored and cleaned up — we don't leave until the job looks right.
Coverage
Service Areas
Serving 10+ Bay Area counties from our San Leandro headquarters.
Alameda County
San Leandro · Oakland · Fremont · Hayward · Berkeley + 8 more
Contra Costa County
Walnut Creek · Concord · Richmond · Antioch · Pittsburg + 5 more
San Francisco
San Francisco
San Mateo County
Daly City · San Mateo · Redwood City · South San Francisco · Burlingame + 4 more
Santa Clara County
San Jose · Santa Clara · Sunnyvale · Mountain View · Palo Alto + 5 more
Napa County
Napa · American Canyon · St. Helena · Calistoga
Solano County
Vallejo · Fairfield · Vacaville · Benicia · Suisun City + 1 more
Sonoma County
Santa Rosa · Petaluma · Rohnert Park · Windsor · Healdsburg + 1 more
Get Started Today
Ready to Get Started?
Whether it's an emergency repair or a planned infrastructure project, Total UC is ready to mobilize. Call us now or submit your project details for a free estimate.
LIC # A A 1094194 — Licensed, Bonded & Insured
Free Estimate
Request a Service
Describe your project and we'll get back to you within 24 hours.