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Boiler Servicing Costs: What to Expect in the UK
A boiler service typically costs between £70 and £120 in the UK, depending on the type of boiler, your location, and whether you're using a local engineer or a national company. Regular servicing keeps your boiler running efficiently, helps prevent breakdowns, and ensures it’s operating safely.
It’s generally recommended to get your boiler serviced once a year — and it may even be required to maintain your warranty or landlord compliance.
Average Boiler Service Prices
Here’s a breakdown of typical costs depending on who you hire and the type of boiler:
Service Type | Typical Cost |
|---|---|
Standard gas boiler service | £70 – £100 |
Oil boiler service | £100 – £150 |
Combi boiler service | £70 – £110 |
Back boiler service | £80 – £130 |
One-off service by national brand (e.g. British Gas) | £95 – £125 |
Annual service plans (monthly contracts) | From £8–£20/month |
Prices may be higher in London or the South East, and lower in other parts of the UK.
What’s Included in a Boiler Service?
A full boiler service should include:
Visual inspection of the boiler and flue
Checking the boiler is firing correctly
Internal clean and component check
Gas pressure and flow test
Flue emissions check
Safety device testing
Ventilation checks
Reporting of any faults or wear and tear
If you're a homeowner, the engineer should also fill out your service record (especially important if you’re under warranty or selling the property).
Do I Really Need a Boiler Service Every Year?
Yes — annual servicing is strongly advised for several reasons:
Safety: Boilers burn fuel, so regular checks reduce the risk of carbon monoxide leaks or dangerous faults.
Efficiency: A serviced boiler runs more efficiently, saving you money on energy bills.
Warranty: Most manufacturers require yearly servicing to keep the warranty valid.
Breakdown prevention: Small issues can be spotted before they turn into expensive problems.
Landlords: Legally required to service boilers annually and provide a Gas Safety Certificate.
How to Save Money on Boiler Servicing
Book in summer or early autumn
Prices can rise in winter when engineers are busier with emergency callouts.
Use a local Gas Safe engineer
Local tradespeople often charge less than national companies and may be more flexible with timings.
Compare service plans
If you like peace of mind, a monthly plan can spread the cost and may include callout cover or parts/labour.
Get multiple quotes
Especially for oil or back boilers, where servicing is more complex.
Combine with other services
If you're having other gas appliances checked or a boiler repair, ask if they can include a service at a reduced rate.
Final Thought
A boiler service in the UK will usually cost between £70 and £120, depending on your boiler type and who you book with. It might seem like an extra annual cost, but it’s far cheaper than dealing with emergency repairs, dangerous faults, or invalidated warranties. Book it yearly, preferably in summer, and keep your home warm, safe, and energy-efficient all year round.