Emergency boiler repair in London
No heating or hot water — especially in winter or with young children, elderly or unwell people at home — needs same-priority attention. Gas work is only accepted where an appropriately verified Gas Safe registered professional is available.
Request urgent helpTypical London price: £150–£400 per repair
Sound familiar?
- Boiler completely dead — no display, no response
- No heating and no hot water
- Boiler leaking water
- Repeated lockouts with an error code
- Banging, whistling or kettling noises
What your Hero will do
- 1Read the fault code and diagnose the failed component
- 2Check pressure, condensate, flue and safety devices
- 3Repair on the spot where the part is carried, or quote the repair with the exact part named
- 4Leave the system safe either way
When to call
Straight away if the boiler is leaking, or if you have no heat and vulnerable people at home. If you ever smell gas, that is a gas emergency, not a boiler repair: call 0800 111 999 first.
Common questions
Can I keep using a boiler showing an error code?
If it runs after a single reset, monitor it and book a repair promptly. If it locks out repeatedly, stop resetting it — repeated forced restarts can turn a cheap fault into an expensive one.