Backflow testing & repair in San Francisco, CA
BackflowCare tests backflow prevention assemblies in San Francisco (City and County of San Francisco) and files the results with San Francisco Public Utilities Commission. You are responsible for arranging the annual test of your backflow assemblies by a tester approved to work in San Francisco. If a device fails, we make minor repairs and file the passing retest with SFPUC.
- County
- City and County of San Francisco
- Water supplier
- San Francisco Public Utilities Commission
- Annual test
- SFPUC: owner hires a certified tester
- Our price
- $199 per device ($25 off for new customers), or from $180/year on a plan
- ZIP codes
- 94102, 94103, 94104, 94105, 94107, 94108, 94109, 94110, 94111, 94112, 94114, 94115, 94116, 94117, 94118, 94121, 94122, 94123, 94124, 94127, 94129, 94130, 94131, 94132, 94133, 94134, 94158
What SFPUC requires in San Francisco
- SFPUC’s Water Quality Division mails a notice at the start of the month the test is due, with a PIC number the tester needs.
- Testers enter results in SFPUC’s online system (CCAMS) within five business days; a failed assembly must be entered the day of the test.
- Each tested assembly gets an SFPUC backflow tag, which costs $30 through June 30, 2027.
Source: SFPUC backflow program (official page), checked October 17, 2026.
Rules for new and replacement devices in San Francisco
- Containment assemblies can be required within 25 feet of the water meter, and at internal hazards.
- Assemblies installed in San Francisco must be on the USC approved list and lead-free.
- Removing, replacing or relocating an assembly needs a licensed contractor and a plumbing permit from the Department of Building Inspection.
Source: SFPUC backflow program (official page).
Installing or replacing a device takes a licensed plumbing contractor, usually with a permit. We can refer you to one we trust, test the new device once it’s in, and make minor repairs to existing ones.
Backflow questions from San Francisco property owners
Which water supplier serves San Francisco?
San Francisco Public Utilities Commission supplies water in San Francisco (ZIP 94102, 94103, 94104, 94105, 94107, 94108, 94109, 94110, 94111, 94112, 94114, 94115, 94116, 94117, 94118, 94121, 94122, 94123, 94124, 94127, 94129, 94130, 94131, 94132, 94133, 94134, 94158) and runs its backflow program.
Who tests backflow devices for SFPUC customers in San Francisco?
You are responsible for arranging the annual test of your backflow assemblies by a tester approved to work in San Francisco.
When is the backflow test due in San Francisco?
SFPUC’s Water Quality Division mails a notice at the start of the month the test is due, with a PIC number the tester needs.
Does SFPUC charge its own fee in San Francisco?
Yes. Each tested assembly gets an SFPUC backflow tag, which costs $30 through June 30, 2027. That fee is separate from our $199 test price.