Water dripping from the pressure relief valve
Check the steps below first — if you\'re not confident, get it fixed safely today.
Find a Gas Safe engineer near you →⚠️ Never block or cap the pressure relief valve pipe — it is a safety device.
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Most likely cause & what to check
Look at the pressure gauge on your boiler — it should be between 1 and 1.5 bar. If it's above 3 bar, that's why the valve is dripping (it's releasing dangerous over-pressure).
Do not try to fix this yourself. A dripping pressure relief valve means something inside the heating system is causing pressure to build up — this needs a Gas Safe engineer.
Call a Gas Safe engineer. Tell them: "Water is dripping from my pressure relief valve pipe outside. My boiler pressure gauge reads [give them the number]."
🛠 Tools & materials you may need
Find a Gas Safe registered engineer near you and get it fixed properly.
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