The temperature-and-pressure relief valve — the T&P valve — is the most important safety device on your water heater. When it leaks, it's telling you something. Here's how to read the message.
If your heater overheats or over-pressurizes, the T&P valve opens and dumps scalding water out through its discharge pipe — preventing a steam explosion. It's the last line of defense. A valve that can't open is a valve that can't save you.
A dripping T&P valve wastes water and signals a problem — but the truly dangerous failure is the valve that stops dripping because it's seized shut. A seized valve plus a stuck thermostat is the combination behind catastrophic tank failures. If your valve drips constantly, or if the test lever won't move, treat it as urgent.
We advise against DIY here. The valve threads into a pressurized tank, the replacement must match your unit's exact BTU and pressure ratings, and the discharge pipe has strict code requirements (full-length, proper diameter, terminating near the floor). A mistake compromises your home's primary overpressure protection — this is a $150–$300 professional job, and it's worth every penny.
We diagnose why it's leaking — not just swap the valve. If high pressure is the root cause, we address that too (expansion tank or regulator). Then we install a correctly rated valve, route the discharge pipe to code, test the valve, and verify your thermostat holds a family-safe 120°F. Book T&P valve replacement at (833) 713-2101.
Test yours today: lift the valve's test lever briefly — water should flow, then stop completely when you release. No flow, or flow that won't stop, means replacement time. If the lever is frozen, don't force it; call us.
Need help now? Don't wait — call us now at (833) 713-2101. Our Colton team answers 24/7.
An occasional drip during heavy heating cycles can happen, but steady or daily dripping is not normal — it means the valve is failing or your pressure is too high.
No — capping or plugging a T&P discharge is extremely dangerous and a code violation. It disables the valve entirely. Have it corrected immediately.
$150–$300 in the Colton area, including the valve, code-correct discharge piping adjustments, and testing. If high pressure is the root cause, an expansion tank or regulator is additional.
One call is all it takes. Talk to a real water heater leak specialist serving Colton and the Inland Empire — no pressure, no obligation.
Call (833) 713-2101
Water Heater Leak Repair Specialists