Backflow Repair Services
Failed a test? Leaking, frozen, or won't hold pressure? We rebuild and repair every major brand of backflow preventer — then re-test and file the passing result.
A backflow preventer that leaks, fails its annual test, or won't hold pressure isn't protecting your water — and it can put you out of compliance with your water district. All Pro Backflow repairs and rebuilds backflow assemblies of every brand and size, usually in a single visit.
Because we carry common repair kits on the truck, we can often diagnose a failure, rebuild the assembly, and re-test it the same day — then file the passing report for you. Reliable, honest, fairly priced repairs have been our reputation since 1998.
Often Same-Day
We stock common rubber kits and parts, so most repairs are completed in one visit.
Every Failure Mode
Leaks, failed checks, stuck relief valves, freeze and vandalism damage — we fix it all.
Re-Test Included
After every repair we re-test the assembly and file the passing certification.
Common backflow repairs we handle
Most backflow failures come down to worn rubber, debris, or freeze damage. Our testers diagnose the exact cause and rebuild the assembly with the correct OEM or aftermarket parts for your brand and model — not a temporary patch.
- First- and second-check rubber kit rebuilds
- Relief valve repair and rebuild
- Leaking, weeping, or spitting relief valves
- Freeze-damaged and vandalized assemblies
- Failed annual test diagnosis and correction
Why backflow repair matters
Backflow happens when contaminated water reverses into the clean supply — usually from a pressure drop or back-siphonage. A failed preventer is the only thing standing between that hazard and your drinking water, which is exactly why water districts require failed devices to be repaired promptly.
We treat every repair as both a safety and a compliance issue: fix it correctly, prove it works with a fresh test, and document it with your purveyor.
Frequently Asked Questions
Common questions about backflow repairs in Northern California.
Related Services
Backflow Testing
AWWA-certified annual testing with all paperwork filed to your water district for you.
Learn MoreFreeze & Theft Protection
Insulated freeze bags, covers, and anti-theft cages to protect exposed assemblies year-round.
Learn MoreEmergency Services
Leaking, burst, frozen, or stolen device? We respond around the clock — weekends and holidays included.
Learn MoreBackflow Service Across Northern California
Based in Rocklin, we serve 15 counties across the greater Sacramento region and Northern California — including but not limited to:
Need backflow parts or freeze bags?
All Pro Backflow handles the service — our sister company, The Backflow Depot, stocks the parts. Repair kits, complete assemblies, test equipment, and USA-made freeze bags in 50+ sizes, with same-day shipping from Rocklin, CA.
Ready for backflow repairs? Let's get you scheduled.
Family-owned and serving Northern California since 1998.