How Much Does a Boiler Repair Cost in the UK? (2026 Guide)
The UK average cost of a boiler repair is between £100 and £500 for a 3-bedroom home.
Prices vary by up to 40% depending on your region. Select your area below for local estimates.
Diagnosis and repair of a faulty boiler, including common issues like no heating, leaks, error codes, and pilot light failures. The total cost depends on your location, property size, and the complexity of the work. Labour costs in London and the South East are typically 20-40% higher than the national average, while the North East, Wales, and Scotland tend to be 10-20% lower.
Cost Calculator
Estimated boiler repair costs in the UK, adjusted for local labour rates.
Estimates based on a 3 bed semi-detached property in the UK. Labour rates reflect the local cost of living. Materials are priced at national averages. Always obtain at least 3 quotes from local tradespeople.
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Boiler Repair in the UK: Frequently Asked Questions
Is it worth repairing an old boiler?
As a rule of thumb, if your boiler is over 12 years old and the repair costs more than £300-£400, replacement is often more cost-effective. Modern boilers are 90%+ efficient compared to 60-70% for older models, so fuel savings alone can offset the cost.
What are the most common boiler faults?
The most common faults are low boiler pressure, frozen condensate pipe (in winter), faulty diverter valve, broken thermostat, and pump failure. Many are relatively inexpensive to fix at £100-£250.