Backflow Prevention
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In San Francisco, CA, typical backflow prevention jobs range from $135 to $1,100. Costs are primarily driven by whether the service is for testing, repair, or full installation, and the specific type of backflow preventer required.
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Includes annual backflow device testing and associated paperwork submission for basic devices.
Covers backflow preventer testing, minor repairs, or installation of simpler backflow devices.
Includes comprehensive installation of complex backflow prevention systems, potentially including materials and labor for complete overhauls.
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$2,063.68
Total Estimate Amount
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This is a Preliminary Estimate
This estimator provides a starting point based on typical jobs. Actual costs may vary based on site conditions, material availability, permit requirements, and other factors discovered during work. We recommend a site visit before providing final pricing to customers.
This estimate is based on typical job parameters. Review and adjust for your specific situation. Standard market rates for your region, mid-grade materials unless specified, standard business hours labor rates, typical job complexity without major complications, basic cleanup included in labor time.
Job complexity
Simple repairs cost less than full installations or replacements. Multi-step jobs requiring permits or inspections add to the total.
Material quality
Budget, mid-grade, and premium materials can swing the price significantly. Discuss options with your contractor to find the right balance.
Local labor rates
Labor costs vary by region, season, and demand. Urban areas and peak seasons typically have higher rates than rural or off-peak times.
Site conditions
Difficult access, older structures, code upgrades, or unexpected issues discovered during work can increase the final cost.
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Common questions about costs and estimates for this service.
Professional help typically ranges from $70 to $150 per hour. In California, complete installations of backflow prevention systems generally cost between $1,800 and $2,900.
Backflow testing costs typically range from $50 to $300. This can vary based on factors like the type of preventer installed and local regulations.
Most backflow repair costs range from $200 to $800. The final price depends on the type of damage, the accessibility of the device, and local labor rates.
As of April 17, 2026, the average hourly pay for a backflow tester in San Francisco, CA is $25.87, according to ZipRecruiter data.
Yes, backflow testing is a viable profession. As of April 15, 2026, the average annual pay for a Backflow Tester in California is $45,803 a year.