Boiler repair in London
Most boiler breakdowns come down to a handful of components — valves, pumps, sensors, PCBs. Your Hero diagnoses from the fault code and names the exact part. You see the full price before you pay, and nothing is added to it unless you approve.
If you smell gas, or a carbon monoxide alarm sounds: don't smoke, light a flame or touch light switches, open the doors and windows, turn the gas off at the meter if you can reach it safely and it isn't in a cellar or basement, get everyone out, and call the National Gas Emergency Service free on 0800 111 999 before anything else — before calling us.
Sound familiar?
- Error code on the display
- No heating, no hot water, or one without the other
- Pressure dropping or rising repeatedly
- Kettling, banging or gurgling noises
- Pilot light or ignition failures
Boiler not working? Causes and what to do — the likely causes, what you can check yourself, and what to leave alone.
What your Hero will do
- 1Diagnose from the fault code, pressures and flue readings
- 2Name the exact component needed; if the repair costs more than the agreed price, the extra comes to you to approve before it is added
- 3Fit the part, test the boiler through a full cycle, and check safety devices
- 4Record the repair on your job's timeline for future reference
When to call
At the first repeated fault. Boilers that lock out more than once are telling you a component is failing — catching it early means the repair can be booked before the boiler stops working altogether. If you smell gas, or a carbon monoxide alarm sounds: don't smoke, light a flame or touch light switches, open the doors and windows, turn the gas off at the meter if you can reach it safely and it isn't in a cellar or basement, get everyone out, and call the National Gas Emergency Service free on 0800 111 999 before anything else — before calling us.