Backflow Testing Services in Ontario, CA
Most properties in Ontario are served by your local water provider. If you haven't had your backflow assembly tested this year, you may already be past due, and the water provider doesn't always send a reminder before the deadline. Missing your test can result in a notice of violation, fines, or interruption of water service. Ontario Backflow Testers serves Ontario and the surrounding Inland Empire, testing RPZ, DCV, PVB, and SVB assemblies for residential and commercial properties, and we file your compliance report directly with your local water provider the same day so you never have to deal with the paperwork.
About Ontario Backflow Testers
I test every backflow assembly personally — no subcontractors, no handoffs. Ontario Backflow Testers is a locally operated backflow testing company serving Ontario and the Inland Empire. We handle annual testing, same-visit repairs, new installations, full replacements, and compliance management for property owners who don't want to track deadlines themselves. We work with residential homeowners near Ontario Mills, property managers at commercial complexes along the airport corridor, and warehouse operators throughout the city's industrial parks. One call covers the test, the repair if needed, and the water provider filing — all in one visit.
Ask about our annual compliance protection plan — we track your due date, schedule the test, and file the report, every year. See what Ontario customers say in our reviews.
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(909) 296-4587Ontario Backflow Testing
Your local water provider requires annual testing by a state-certified tester for all Ontario properties with backflow prevention assemblies. We test RPZ, DCV, PVB, and SVB assemblies and file your compliance report with your local water provider the same day — residential, commercial, and industrial. Most visits take 20–30 minutes. Full details on Ontario backflow testing ›
Ontario Backflow Repair
Failed your annual test? We stock repair kits for Watts, Febco, Wilkins, and Ames assemblies on every truck. Most Ontario properties get same-visit repair, re-test, and re-file with your local water provider — no second appointment needed. Full details on Ontario backflow repair ›
Ontario Backflow Installation
New construction in Ontario requires approved assemblies before water service activates. We install RPZ, DCV, and PVB assemblies, coordinate with contractors, test on install day, and file the passing report with your local water provider before leaving the job site. Full details on Ontario backflow installation ›
Ontario Backflow Replacement
Assemblies over 15–20 years old or repeatedly failed units may cost more to repair than replace. We give you a straight repair-or-replace recommendation with pricing before touching anything, then install, test, and file with your local water provider the same day — no gap in compliance. Full details on Ontario backflow replacement ›
Ontario Annual Compliance Management
Our compliance management program tracks your test due date, schedules the visit, performs the test, and submits your certificate to your local water provider — every year, without you lifting a finger. Ideal for property managers with multiple Ontario units. Full details on Ontario compliance management ›