How much does a boiler engineer cost in London?
A Gas Safe registered boiler engineer in the UK typically charges £50–£100 per hour, with an annual boiler service costing £70–£120. In London (London), a boiler engineer typically charges £55–£110 per hour — that is +7% versus the UK average of £50–£100.
London boiler engineer rate: £55–£110 per hour. London runs at index 107 (UK = 100), so local prices are adjusted +7% from the national band.
Boiler Engineer prices in London
| Job | UK typical | London | Basis |
|---|---|---|---|
| Annual boiler serviceKeeps warranty valid | £70–£120 | £75–£130 | per service |
| Standard hourly rateGas Safe registered | £50–£100 | £55–£110 | per hour |
| Boiler repairPlus parts; depends on fault | £150–£400 | £160–£430 | per job |
| Gas safety certificate (CP12)Landlord legal requirement | £60–£120 | £65–£130 | per certificate |
| New combi boiler (supplied & fitted)Varies by brand and pipework | £1,800–£3,500 | £1,950–£3,750 | per install |
| Power flush (central heating)More radiators = higher | £300–£600 | £320–£640 | per job |
City prices are the UK bands scaled by the London regional price level. Source: ONS — Relative regional consumer price levels of goods and services, UK: 2016 (all-items relative price level, UK=100) (2016). ONS release.
What changes a boiler engineer's price
- Gas Safe registration: By law, anyone working on gas appliances in the UK must be on the Gas Safe Register. That qualification is part of why a boiler engineer costs more than a general plumber for gas work.
- Service vs repair: A service is a fixed, predictable cost; a repair depends entirely on the fault and which part has failed.
- Boiler brand: On a new install, the boiler unit itself is a big share of the price — premium brands cost more but often carry longer warranties.
- Region and out-of-hours: London and the South East run higher, and a no-heat emergency in winter carries a premium call-out.
Frequently asked questions
How much does a boiler service cost in London?
An annual boiler service typically costs £70–£120. It is worth doing every year — most boiler warranties require an annual service to stay valid, and it catches small faults before they become a winter breakdown.
How much does a new boiler cost installed?
A new combi boiler supplied and fitted typically costs £1,800–£3,500. The exact price depends on the boiler brand and output, whether the flue and pipework need moving, and the condition of the existing system.
How much is a landlord gas safety certificate (CP12)?
A landlord gas safety certificate (CP12) typically costs £60–£120 depending on the number of gas appliances. It is a legal requirement for rented homes in the UK and must be renewed every 12 months by a Gas Safe registered engineer.
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