Underfloor Heating Not Working
Underfloor heating that has stopped producing heat or heats unevenly across the floor.
What Is Causing This?
- 1Air lock in a water-based system
- 2Broken heating element or cable in an electric system
- 3Faulty thermostat or programmer
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 test the system, bleed water-based loops, or use thermal imaging to locate a broken cable. The thermostat and actuator valves are also checked.
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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Try Snap and FixHow to Prevent This
Have underfloor heating serviced annually. Run the system briefly before winter to check it works. Keep the screed or substrate in good condition.
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.
The house takes a very long time to reach the set temperature, with radiators warming up slowly.