Boiler repair costs in the UK range from £150 to £400 for labour, with parts charged separately. The final cost depends on what is wrong, how old the boiler is, and whether replacement parts are readily available.
A Gas Safe registered engineer is legally required for all boiler and gas work. Never hire someone without checking their Gas Safe registration at GasSafeRegister.co.uk. Fines for illegal gas work can reach £6,000.
The most common boiler problems and their typical repair costs include: ignition failure (£150 to £300), faulty thermostat (£100 to £250), leaking boiler (£150 to £400), low pressure issues (£80 to £200), and noisy boiler or kettling (£200 to £400 — often requires a power flush).
Annual boiler servicing costs £80 to £150 and is essential to keep your manufacturer warranty valid. A well-serviced boiler runs more efficiently and lasts longer. Most engineers recommend servicing every 12 months.
If your boiler is over 10 to 15 years old and needs frequent repairs, it may be more cost-effective to replace it. A new combi boiler installation in Warwickshire costs £2,200 to £4,500 including supply and fitting.
Emergency boiler callouts cost significantly more — expect £100 to £250 just for the callout fee, plus labour and parts. Weekend and evening callouts can be 50 to 100 percent more expensive than standard weekday rates.