How Much Does a Boiler Service Cost in 2025?

It is always wise to get your boiler service regularly to maintain its performance and efficiency. Nobody wants to face the frustration of a boiler breakdown during the freezing winter months when the system is under maximum pressure. This situation can leave you without heat or hot water when you need it the most.

Regular service not only helps prevent unexpected breakdowns but also reduces the risk of carbon monoxide poisoning and ensures your boiler continues to operate safely and efficiently. That’s why registered Gas Safe engineers strongly recommend an annual boiler service for every homeowner.

How Much Does a Boiler Service Cost in the UK?

In 2025, the average boiler service cost UK ranges between £80 and £150, depending on your boiler type, location, and the company you choose. The average cost of boiler service is around £110 nationwide, with prices slightly higher in major cities like London, where the boiler service cost London may go up to £160 due to higher labour charges.

A standard service typically includes a full inspection, cleaning of internal components, and safety checks. Below, we’ll break down the cost of boiler service by type, discuss influencing factors, and explain what you need to consider before booking your next appointment.

How Much Will a Gas Boiler Service Cost?

A gas boiler service remains one of the most common and affordable maintenance options for UK homeowners. In 2025, the gas boiler service cost ranges between £80 and £140, with an average of £110.

During the service, a certified Gas Safe engineer will:

• Conduct an emissions check to ensure no harmful gases are being released.
• Inspect the flue to ensure proper ventilation.
• Examine pipework to confirm compliance with safety standards.
• Check the boiler installation for safe setup.
• Test the controls and thermostat.
• Look for leaks, rust, and corrosion.
• Test the system’s pressure levels to verify optimal operation.

These steps ensure that your gas boiler operates safely, efficiently, and within government safety regulations.

How Much Does an Oil Boiler Service Cost?

An oil boiler service tends to be slightly more expensive due to its fuel type and maintenance complexity. The oil boiler service cost in 2025 ranges between £100 and £200, averaging around £140.

Only engineers registered with OFTEC (Oil Firing Technical Association) can legally perform these services. The inspection typically includes:

• A full examination of the oil tank and connecting pipes for leaks or water contamination.
• Cleaning and replacing the nozzle.
• Flue inspection and cleaning.
• Internal cleaning of heat exchangers and burners.
• Testing thermostats, relief valves, and safety mechanisms.

This ensures your oil boiler remains efficient and safe throughout the year.

How Much Does an Electric Boiler Service Cost?

While electric boilers require less maintenance than gas or oil boilers, it’s still recommended to get an annual check to ensure reliable winter performance. The electric boiler service cost in 2025 ranges between £70 and £120, depending on your system’s complexity.

An electric boiler service typically includes:

• Checking all electrical connections for wear or corrosion.
• Inspecting the tundish and surrounding area for water damage.
• Verifying the condition of wiring and insulation.
• Testing the thermostat and control system.
• Restarting the system to confirm all components function correctly.

2025 Price Comparison Table:

Note: Prices are updated for 2025 and may vary slightly based on your location, company rates, and whether additional repairs are needed.

Factors to Consider When Getting a Boiler Service

Knowing the boiler service cost is just one part of the process. Before booking a service, you should also understand a few other important factors:

• What does a boiler service include?
• How often should you service your boiler?
• Common signs your boiler needs servicing
• Legal responsibilities for homeowners and landlords
• Who are the most reliable service providers in the UK?
• Is boiler servicing worth the cost?
• Should you repair or replace your boiler?

Let’s discuss each of these in detail.

What Does Boiler Service Include and Why Is It Important?

A boiler service involves a detailed inspection and cleaning process performed by a qualified Gas Safe engineer. This includes checking components for efficiency, ensuring no leaks or blockages, and verifying that all parts meet safety standards.

After completion, you’ll receive a Gas Safety Certificate, which records:

• The engineer’s name, registration number, and company details.
• Any issues identified and resolved.

Servicing your boiler annually not only improves efficiency and extends lifespan but also helps prevent major breakdowns saving you from future repair or replacement costs.

How Often Should You Service Your Boiler?

Experts recommend an annual boiler service, ideally before winter begins. Regular maintenance ensures the system is ready for heavy use and prevents unexpected heating failures.

Common Issues That Lead to a Boiler Service

Here are common warning signs your boiler may need attention:

• Pilot light not functioning correctly.
• No heating or hot water.
• Pressure inconsistencies (too high or too low).
• Gurgling, banging, or bubbling noises.
• Cold radiators.
• Frozen pipes.
• Boiler switching off frequently.
• Leaks or poor installation.
• Electrical faults or tripped circuits.

Legal Responsibilities for Boiler Servicing

If you’re a homeowner, there’s no strict legal obligation to have an annual service. However, regular servicing ensures safety, efficiency, and warranty validity.

If you’re a landlord, UK law requires an annual boiler service and Gas Safety Check by a registered Gas Safe engineer to protect tenants and comply with legal safety standards.

Reliable Annual Boiler Service Providers in the UK

Some of the most trusted and affordable companies for annual boiler service in the UK include:

• 24|7 Home Rescue
• British Gas
• Home tree
• Vaillant
• Home Serve
• Worcester Bosch
• Scottish Power
• Baxi Boiler
• EDF Energy

Boiler Service

Ensure your boiler runs efficiently and safely with our professional boiler servicing. Regular maintenance will save you money in the long run and potentially prevent breakdowns.

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Is Boiler Service Worth it?

Absolutely. Annual servicing prevents major breakdowns, enhances system efficiency, reduces energy bills, and ensures your boiler operates safely. It’s a small investment that prevents costly repairs later and guarantees peace of mind during winter.

Learn more about: Benefits of Annual Boiler Service.

Should You Repair or Replace Your Boiler?

This depends on your boiler’s age and condition.

• If your boiler is under 10 years old, repairs are usually more cost-effective.
• If it’s over 10–12 years old, replacement may be the smarter choice, as older systems lose efficiency and require frequent maintenance.

For homeowners on a budget, many companies offer boiler finance plans, allowing you to replace your old boiler with affordable monthly payments.

Boiler Service Vs Boiler Cover

You have two main options for maintaining your boiler:

1. One-off service – Pay a single fee for a visit and inspection.
2. Boiler cover policy – Pay a fixed monthly or annual fee that includes regular servicing, emergency repairs, and extras like CP12 certificates, carbon monoxide tests, and gas safety checks.

Conclusion:

By now, you know the average cost of boiler service in 2025 and how it varies by boiler type. You’ve also learned why regular maintenance is crucial for safety, efficiency, and warranty protection.

If you own a gas boiler and are looking for a reliable, affordable service, 24|7 Home Rescue offers complete peace of mind. Our annual boiler service includes:

• Gas safety check
• Carbon monoxide test
• CP12 certificate (for landlords)
• Nationwide coverage
• Flexible appointment slots
• Email certification after service

Simply call 0345 3192 247 and let our Gas Safe engineers take care of your heating system helping you stay safe, warm, and worry-free this winter.