Boiler Servicing

Oil Boiler Service

An oil boiler service keeps your heating system running safely and reliably. It focuses on routine checks, cleaning and performance testing to reduce breakdown risk, improve efficiency, and confirm your boiler is operating as it should.

More information

What an oil boiler service covers

A service is a planned health check for your domestic oil-fired boiler, designed to keep it operating safely and efficiently.

  • Visual inspection of the boiler, flue and key safety-related components
  • Cleaning of parts where required (for example, burner area and filters)
  • Checks for leaks, wear, corrosion and signs of overheating
  • Combustion analysis and adjustments where appropriate
  • Operational checks to confirm correct start-up, shut-down and controls
  • Service record completed, with clear notes on any issues found

Who this service is for

  • Homeowners who want dependable heating and fewer surprise faults.
  • Landlords arranging routine maintenance and documentation for a property.
  • Small commercial sites using an oil-fired boiler and needing predictable upkeep.
  • Anyone noticing early warning signs, such as unusual smells, sooting, noisy ignition, or fluctuating heating performance.

What happens on the day

You book a convenient time, then the engineer carries out a structured set of checks and tests. Where cleaning or minor adjustments are needed to restore correct operation, these are completed as part of the service where possible. If a fault or failing part is identified, you will be told what it is, what it means, and what your options are before any extra work is carried out.

After your service

You receive a clear summary of findings and any recommendations, prioritised by safety and reliability. If repairs are advised, you can choose to schedule them to suit you, with transparent next steps. Regular servicing also helps you track boiler condition over time and plan maintenance before it becomes urgent.

Frequently Asked Questions

How often should an oil boiler be serviced?
Most domestic oil boilers should be serviced once a year. Annual servicing helps maintain safe operation, supports efficiency, and reduces the risk of unexpected breakdowns.
What is included in an oil boiler service?
A service typically includes safety checks, inspection of key components, cleaning where needed, and combustion analysis to confirm correct operation. You will also receive notes on any issues and recommended next steps.
Do I need to turn the boiler off before the appointment?
In most cases, no. The engineer will advise if anything needs to be switched off, and will safely isolate the appliance when required during testing and servicing.
Will servicing improve efficiency and reduce fuel use?
It can, especially if the burner is dirty or the combustion settings are off. A clean, correctly set-up boiler generally runs more efficiently and is less likely to produce soot or smoke.
What if you find a fault during the service?
You will be told what has been found and whether it affects safety or reliability. If further repairs or parts are needed, you will receive a clear explanation and can approve any additional work before it goes ahead.

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