No Hot Water
Hot water taps run cold or lukewarm despite the boiler or immersion heater being switched on.
What Is Causing This?
- 1Boiler fault or pilot light gone out
- 2Faulty diverter valve not directing hot water
- 3Broken immersion heater element or thermostat
How Urgent Is This?
This needs prompt attention. Delaying could cause further damage, safety risks, or significantly higher repair costs.
What Needs to Be Done
A plumber or heating engineer will diagnose whether the issue is with the boiler, diverter valve, thermostat, or immersion heater and replace the faulty component.
How Much Will It Cost?
National average estimate
Labour: £246 – £620 | Materials: £200 – £830
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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
Have your boiler serviced annually. Bleed radiators regularly and keep the system pressurised to the recommended level.
Related Problems
The boiler shows an error code, flashes a warning light, or simply will not ignite when heating or hot water is called for.
The boiler pressure gauge keeps falling below 1 bar, causing the boiler to lock out or lose heating efficiency.
Water comes out slowly from taps or the shower, making everyday tasks frustrating.
Other Plumber Problems
A tap that drips constantly, wasting water and causing staining around the sink or basin.
Water comes out slowly from taps or the shower, making everyday tasks frustrating.
Water continuously runs into the toilet bowl after flushing, often with a hissing or trickling sound.
Water drains slowly or not at all from a sink, bath, or shower, often with an unpleasant smell.