"They installed a 100 foot pipe, 15 feet down with a 45 degree turn. It was an incredibly huge job. The job was done professionally, fast, efficiently and successfully. Joe and Orlando were professional, helpful and always there to answer my questions."
Backflow Testing & Certification
Annual backflow testing and certification to keep your system compliant with local codes.
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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 # 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.
"I failed an inspection required by City of San Mateo's lateral sewer line ordinance. Joe gave me a quote with a few contingencies for what he could not see until excavating, and the contingent items were not necessary, so the quote held. Permits and all phases were perfectly sequenced, and we passed inspection."
"An excellent experience working with Joe on my water service, city side upgrade. He went above and beyond to push the project through, even as the city changed the sequence and timing of several technical and administrative steps. His communication and follow through were exceptional."
"Joe was up front about cost and schedule, and was careful to make sure that the job was truly necessary. His crew was thorough, prompt, and great to interact with. They rolled with some unexpected hiccups on our end."
"We needed a pipe dug out of a concrete driveway in order to clear the sewer line. Joe explained everything and the work was done in one day."
"They came out to assess the situation and proposed a cost effective solution. They drove out that night to get the sewer line into a passable condition so we would not be without water, free of charge. During the project they had four guys working and completed the sewer line replacement in a single day."
"I had a leak under my house and Joe came out within hours. They replaced galvanized pipes within 24 hours, very professional."
"Our old galvanized water lines were badly corroded and needed replacing with copper. They were prompt and knowledgeable, got the work done with minimal inconvenience, and constantly kept us advised what was being done."
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 # 1094194 A – General Engineering — Licensed, Bonded & Insured
Free Estimate
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Describe your project and we'll get back to you within 24 hours.