Why Annual Boiler Servicing Matters
A boiler service once a year is recommended by every major manufacturer and is often a warranty condition. Beyond keeping your warranty valid, regular servicing keeps your boiler safe, efficient, and less likely to break down when you need it most.
What Happens During a Boiler Service?
A Gas Safe registered engineer will work through a systematic inspection and testing procedure. The entire process usually takes 45–90 minutes.
Visual Inspection
The engineer begins by visually inspecting the boiler casing, flue terminal, and pipework for signs of damage, corrosion, or leaks. The flue must be clear and correctly installed to safely expel combustion gases.
Internal Inspection
The boiler casing is removed to allow inspection of internal components: burner, heat exchanger, spark igniter, gas valve, seals and gaskets, and any filters. Components are cleaned where necessary — particularly the burner and heat exchanger, where soot and scale accumulate over time.
Combustion Analysis
Using a calibrated flue gas analyser, the engineer checks the combustion efficiency. This ensures the boiler is burning gas correctly and not producing excessive carbon monoxide. Results are compared to manufacturer specifications and recorded.
Safety Checks
All safety devices are tested — pressure relief valve, low-pressure cutout, overheat thermostat, and the gas valve operation. The engineer will also check your system pressure and top it up if necessary.
Service Certificate
On completion, you receive a signed service certificate. Keep this safe — it is your proof of annual servicing for warranty purposes and for landlord gas safety records if applicable.
After the Service
Your engineer will advise you of any concerns noted — worn components, early signs of corrosion, or anything requiring attention in the near future.
Halo Heating's Gas Safe engineers cover Surrey and surrounding areas. Book your annual service by calling 01483 676108.
Need Professional Help?
Our Gas Safe registered engineers cover Surrey and surrounding areas. Call for a free quote or to book an engineer.
Call 01483 676108