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UrgentCommon in SepRecommended trade: Plumber

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?

Urgent

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?

£446 – £1,450

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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How to Prevent This

Have your boiler serviced annually. Bleed radiators regularly and keep the system pressurised to the recommended level.

Related Problems

Boiler Not Firing Up

The boiler shows an error code, flashes a warning light, or simply will not ignite when heating or hot water is called for.

Boiler Pressure Keeps Dropping

The boiler pressure gauge keeps falling below 1 bar, causing the boiler to lock out or lose heating efficiency.

Low Water Pressure

Water comes out slowly from taps or the shower, making everyday tasks frustrating.

Other Plumber Problems

Dripping Tap

A tap that drips constantly, wasting water and causing staining around the sink or basin.

Low Water Pressure

Water comes out slowly from taps or the shower, making everyday tasks frustrating.

Toilet Keeps Running

Water continuously runs into the toilet bowl after flushing, often with a hissing or trickling sound.

Blocked Drain

Water drains slowly or not at all from a sink, bath, or shower, often with an unpleasant smell.

Frequently Asked Questions

What causes no hot water?
Boiler fault or pilot light gone out. Faulty diverter valve not directing hot water. Broken immersion heater element or thermostat.
Is no hot water serious?
This needs prompt attention. Delaying could cause further damage, safety risks, or significantly higher repair costs.
How much does it cost to fix no hot water?
Typical costs range from £446 to £1,450 depending on severity and location. Get a free quote from a local plumber on Tradesfolk.
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