An annual boiler service costs £105+VAT and keeps your boiler safe, efficient and within its manufacturer warranty, which can become invalid without one. During a service a Gas Safe engineer checks safety-critical components, cleans the burner, tests emissions and controls, and flags anything that needs attention. Regular servicing lowers running costs and catches faults early.
Your boiler works hard all year round, heating your home and providing hot water on demand. Like any piece of equipment that runs day in, day out, it needs a regular check to keep it running safely and efficiently. An annual boiler service is one of the most cost-effective things you can do as a homeowner, and it is quick, affordable and easy to arrange. Here is why it matters and what actually happens during a service.
Why an Annual Service Matters
Manufacturers recommend a service every year, and there are good reasons for that. It is about safety, efficiency and peace of mind.
- Safety: Boilers burn gas to produce heat. A worn seal, faulty valve or poor combustion can lead to a carbon monoxide leak, a silent and dangerous gas. An annual service checks for exactly these risks.
- Efficiency: A clean, well-tuned boiler burns fuel cleanly and uses less of it. A neglected boiler gradually loses efficiency, quietly pushing up your bills.
- Reliability: Most breakdowns happen in winter, the worst possible time. Servicing catches small issues before they become expensive failures when you least want them.
- Peace of mind: Once a year, a Gas Safe registered engineer confirms your boiler is safe and running as it should. That is well worth having.
Keeping Your Warranty Valid
This is one of the most important and most overlooked reasons to service your boiler every year. Almost every manufacturer requires an annual service as a condition of the warranty.
If your boiler is still under warranty and you skip a service, the manufacturer can refuse to cover a repair or replacement, even if the fault has nothing to do with the missed service. On a boiler that came with a 10-year warranty, that is a lot of cover to risk losing for the sake of one annual appointment. Keeping a record of your services protects that warranty and the investment you made in your boiler.
Book Your Boiler Service Today
An annual service is just £105+VAT. Call Boiler Boys London on 07402 806032 to arrange your appointment across Ealing and West London.
Call to BookWhat an Engineer Checks
A boiler service is a thorough inspection and clean, not just a quick look. Here is what a Gas Safe registered engineer works through.
- Visual inspection: The engineer examines the boiler, pipework and connections for signs of damage, leaks, corrosion or wear.
- Burner and combustion check: The boiler is tested to confirm it is burning gas cleanly. The engineer checks the flame, combustion efficiency and emissions to confirm no carbon monoxide is being produced.
- Safety controls: Pressure valves, thermostats and safety shut-offs are tested to confirm they work correctly and protect against overheating and overpressure.
- Burner clean: The burner and key components are cleaned to remove soot and debris, keeping heat transfer efficient.
- Flue inspection: The flue is checked to confirm it is clear and venting safely, so no harmful gases can enter your home.
- System pressure: The engineer confirms the system pressure is correct, adjusting it if needed.
- Gas tightness: The boiler and connections are tested for gas leaks, with anything found put right before the engineer leaves.
At the end of the service, we explain anything that needs attention and give you clear, honest options. No pressure, no unnecessary work.
How Servicing Saves Money
It can feel tempting to skip a service to save the cost, but in practice servicing usually pays for itself.
- Lower running costs: A clean, efficient boiler uses less gas, which keeps your heating bills down all year.
- Catches faults early: A worn part spotted during a service is cheap to replace. The same part left to fail can cause a much larger, more expensive breakdown.
- Longer boiler life: A well-serviced boiler can comfortably reach the upper end of its lifespan, delaying the cost of a full replacement.
- Protects your warranty: Keeping the warranty valid means major repairs stay covered rather than landing on you.
Compared to the cost of an emergency repair or an early replacement, an annual service is outstanding value.
Cost and Booking
At Boiler Boys London, an annual boiler service costs £105+VAT. This includes a full safety inspection, burner clean, emissions test and controls check. If you are a landlord, you can combine the service with a gas safety certificate for £160+VAT in a single visit.
The best time to book is before winter, so any issues are sorted before the heating is working hard. Give us a call on 07402 806032 and we will find a convenient time.
Frequently Asked Questions
Manufacturers recommend servicing your boiler once a year. It is especially important while your boiler is under warranty, as missing a service can make that cover invalid. An annual service also keeps the boiler running safely and efficiently.
An annual boiler service with us costs £105+VAT and includes a full safety inspection, burner clean, emissions test and controls check. Landlords can combine it with a gas safety certificate for £160+VAT in one visit.
A typical service takes around an hour, depending on the boiler. The engineer needs access to the boiler and controls, but you can carry on with your day while the work is done.
Yes. Even a new boiler should be serviced annually, starting one year after installation. This keeps your manufacturer warranty valid and ensures the boiler stays in peak condition.
No. Boiler servicing must be carried out by a Gas Safe registered engineer. It is illegal for anyone else to work on gas appliances, and a DIY attempt would void your warranty and invalidate your insurance.
If we find a problem, we explain it clearly and give you honest options. Minor issues can often be fixed on the day. Anything larger is quoted separately, and you decide whether to go ahead. There is no pressure and no unnecessary work.
