Boiler Service Cost UK 2025
Boiler Service Cost UK 2025
Getting your boiler serviced every year is one of the most important things you can do as a UK homeowner. It keeps your heating system running safely and efficiently — and it can catch problems before they turn into expensive breakdowns. But how much should you actually pay? In this guide, we break down the real boiler service costs across the UK in 2025.
Average Boiler Service Cost in the UK
The average cost of a standard gas boiler service in the UK is £80 to £120 for a basic inspection and service. However, prices vary significantly depending on where you live, the type of boiler you have, and the engineer you choose.
| Region | Average Cost (2025) |
|---|---|
| London | £100–£150 |
| South East England | £90–£130 |
| Midlands | £75–£110 |
| North West (Manchester, Liverpool) | £70–£100 |
| Yorkshire | £70–£100 |
| Scotland | £75–£110 |
| Wales | £70–£105 |
What Affects the Price of a Boiler Service?
Location
Labour costs in London and the South East are consistently higher than the rest of the UK. Expect to pay a 20–30% premium in major cities compared to rural areas.
Type of Boiler
Combi boilers are the most common and typically the cheapest to service. System boilers and conventional (regular) boilers can cost slightly more due to additional components like cylinders and tanks.
- Combi boiler service: £80–£120
- System boiler service: £85–£130
- Conventional boiler service: £90–£140
- Oil boiler service: £80–£150
Boiler Age and Condition
Older boilers — especially those over 10 years old — may take longer to inspect and could require replacement parts, increasing the total cost. If parts are needed, these are usually charged separately.
Engineer Experience and Accreditation
All gas engineers must be Gas Safe registered. Some manufacturers (like Worcester Bosch and Vaillant) have approved installer networks — their engineers may charge slightly more but offer manufacturer-backed warranties.
What Is Included in a Boiler Service?
A standard boiler service should include:
- Visual inspection of the boiler and flue
- Checking the gas pressure and flow
- Inspecting and cleaning the burner and heat exchanger
- Checking seals, gaskets, and safety devices
- Flue gas analysis to check combustion efficiency
- Testing all controls and thermostats
- Issuing a service record
Some engineers include a magnetic filter clean in the service; others charge extra for this. Always ask what is included before booking.
Annual Service vs Boiler Cover Plans
Many energy companies offer boiler cover plans that include an annual service. British Gas HomeCare, for example, costs from around £10–£25 per month depending on the level of cover. Over a year, that is £120–£300 — more expensive than a one-off service, but it also includes breakdown cover and parts.
If your boiler is newer (under 5 years old) and in good condition, a standalone annual service from a local Gas Safe engineer is usually the most cost-effective option.
Is It Worth Getting Your Boiler Serviced?
Absolutely. Annual servicing:
- Extends boiler lifespan by identifying wear before it causes failure
- Maintains manufacturer warranty (most require annual servicing)
- Improves energy efficiency — a dirty boiler uses more gas
- Ensures carbon monoxide safety
- Is often required by landlords under UK law
How to Get the Best Price on a Boiler Service
- Compare at least 3 quotes from Gas Safe engineers in your area
- Book in summer when demand is lower — some engineers offer off-peak discounts
- Ask about combined service deals if you also need a landlord gas safety certificate
- Check Checkatrade or Leads2Trade for vetted local engineers with transparent pricing
Ready to Book a Boiler Service?
The easiest way to find a qualified, rated Gas Safe engineer near you is to use a trusted comparison service. We recommend comparing quotes through Leads2Trade or finding a vetted engineer on Checkatrade. Both services only list Gas Safe registered professionals.