Annual boiler service across London

An annual boiler service is the single best maintenance investment a homeowner can make. It costs from £149.99 in London. It catches sensor drift, fan wear, gas-pressure issues, flue defects and combustion inefficiencies before they become breakdowns. It validates manufacturer warranties (most boiler warranties are explicitly voided without documented annual servicing). It typically extends boiler life by 5+ years.

Our annual service follows the full manufacturer service schedule, strip-down, inspection, gas-pressure verification, flue-gas analysis (FGA), case clean, ignition system check, ionisation probe inspection, pressure-relief valve test, and condensate trap cleaning. A signed service record is issued same-day for warranty and landlord-compliance purposes.

How we deliver

No surprises, no upselling. The exact path every job follows.

1. 1
   Booking confirmed with Gas Safe ID provided
   Engineer's name and Gas Safe Register ID emailed before arrival.
2. 2
   Visual inspection & case removal
   All accessible components inspected. Case cleaned.
3. 3
   Combustion analysis (FGA)
   Calibrated analyser measures CO, CO₂, O₂, flue gas temperature, combustion ratio.
4. 4
   Gas pressure verification
   Working and standing pressures measured and adjusted if needed.
5. 5
   Component clean & inspection
   Heat exchanger, fan, ignition electrodes, ionisation probe, condensate trap.
6. 6
   Pressure relief valve test
   PRV operation verified.
7. 7
   Boiler reassembled, recommissioned
   Final commissioning checks before sign-off.
8. 8
   Service record issued
   Signed Benchmark / service record for manufacturer warranty file.