Backflow Testing Services in Fontana, CA
Properties in Fontana connected to your local water provider are required to have backflow prevention assemblies tested annually by a state-certified tester. Ontario Backflow Testers serves Fontana, San Bernardino County, and the surrounding Inland Empire — testing RPZ, DCV, PVB, and SVB assemblies for residential, commercial, and industrial properties. We file your compliance report directly with your local water providerthe same day so you never deal with the paperwork.
About Fontana's Backflow Requirements
Your local water provider sends annual test notices to property owners in Fontana. Failure to test and file before the deadline on your notice can result in a notice of violation and water service interruption. Fontana has a diverse mix of property types — industrial warehousing near the I-10 corridor and residential growth areas along Sierra Ave — all requiring properly maintained and annually tested backflow prevention assemblies. With a population of approximately 214,000 across 91340 and neighboring zip codes, Fontana is one of the most active service areas in our Inland Empire coverage zone.
Available 24/7 — Reach Us Anytime in Fontana
(909) 296-4587Fontana Backflow Testing
State-certified annual backflow assembly testing for residential, commercial, and industrial properties. We test all assembly types and file your compliance report directly with your local water provider. Full details on Fontana backflow testing ›
Fontana Backflow Repair
Failed your annual test? We stock repair kits for Watts, Febco, Wilkins, and Ames assemblies. Most Ontario properties get same-visit repair, re-test, and re-file with your water provider. Full details on Fontana backflow repair ›
Fontana Backflow Installation
New construction and system upgrades require approved backflow prevention assemblies. We install, test, and file the passing report with your water provider before leaving the job site. Full details on Fontana backflow installation ›
Fontana Backflow Replacement
Assemblies over 15–20 years old or repeatedly failed units may cost more to repair than replace. We give you a straight recommendation with pricing before touching anything. Full details on Fontana backflow replacement ›
Fontana Annual Compliance Management
We track your test due date, schedule the visit, perform the test, and submit your certificate to your water provider every year — ideal for property managers with multiple units. Full details on Fontana annual compliance management ›