Failed a Backflow Test? What Happens Next
If your annual backflow test fails differential pressure verification, your municipality grants a strict 14 to 30-day grace period to perform repairs, complete retesting, and file an updated passing test certificate. Ignoring a failed test tag can result in daily court fines of $100 to $500 and municipal water service shut-off.
Our licensed mobile technicians stock genuine OEM repair kits for major manufacturers—including Watts, Wilkins/Zurn, Conbraco/Apollo, and Febco—allowing us to perform same-day valve rebuilds and retests in a single visit.
Common Failure Causes
- Fouled rubber check discs
- Mineral scale deposit on valve seats
- Worn relief valve diaphragms
- Weakened check springs
- Thermal expansion pressure spikes
Our Complete Repair & Installation Solutions
Internal Rubber & Check Rebuilds
Disassembly of valve body, cleaning check seats, replacing rubber discs, O-rings, and stainless springs with genuine OEM kits.
Relief Valve Diaphragm Servicing
Restoring proper 2.0+ PSI differential relief opening thresholds on leaking RPZ assemblies to eliminate water waste.
New Permitted Installations
Sizing, plumbing design, municipal building permit application under OBC Section 7.1.5, installation, and initial certified testing.
Thermal Expansion Protection
Sizing and installing thermal expansion tanks to prevent closed-system pressure spikes caused by backflow preventers.
Need Immediate Backflow Repairs or Installation?
Fast, licensed repair service across Toronto, Peel, York, Hamilton, Waterloo, and London, ON.
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