Radiator Leaking from Valve
Water dripping from the connection between the radiator and the valve, often leaving a pool on the floor.
What Is Causing This?
- 1Compression fitting loosened over time
- 2Olive or seal inside the fitting corroded
- 3Thermostatic valve gland worn out
How Urgent Is This?
This should be fixed in the coming weeks. Leaving it may allow the problem to worsen and cost more to repair.
What Needs to Be Done
A heating engineer will drain down the affected radiator, tighten or replace the compression fitting, and fit a new olive or valve if the existing one is beyond repair.
How Much Will It Cost?
National average estimate
Labour: £565 – £1,488 | Materials: £363 – £1,238
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Prices are estimates based on typical UK rates. Actual costs depend on the specific issue, accessibility, and your location. All quotes from tradespeople on Tradesfolk are completely free.
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Ask a QuestionHow to Prevent This
Do not knock or lean on radiator valves. Check around valves periodically for signs of moisture. Have valves replaced if they become stiff to turn.
Related Problems
Other Heating Engineer Problems
Radiators that are hot at the top but cold at the bottom, reducing heat output.
Banging, gurgling, ticking, or clicking sounds from radiators, pipes, or the boiler when the heating is running.
The room thermostat does not respond, displays incorrectly, or the heating does not follow the set temperature.
Underfloor heating that has stopped producing heat or heats unevenly across the floor.