Boiler Service Cost

How Much Does a Boiler Service Cost?

So, how much should a boiler service cost you in 2025?

The average boiler service in the UK costs £100 and can usually be completed within 1 to 2 hours. Boiler service quotes will mainly depend on the type of boiler you have, whether you're using a local tradesman, and where you're located in the UK.

What Impacts How Much Boiler Servicing Costs?

Location can impact the cost, with fees in London and the surrounding areas around £10 to £20 more than the national average. Whether you hire a local contractor or a national company can also make a difference, along with if any additional work is required.

However, the type of fuel your boiler uses is the biggest factor in determining your boiler service price. Below, we've broken down the price range based on the individual boiler type:

• The cost to service an electric boiler is between £75 to £110.
• The cost to service a gas boiler is between £85 and £120.
• The cost to service an LPG boiler is between £90 to £120.
• The cost to service an oil boiler is between £90 to £125.

Gas and electric boilers are often more straightforward to service, plus they often don't require as many specialist parts if there's an issue. Whereas LPG and oil boilers need additional safety checks on their fuel storage, which can increase their overall maintenance costs.

Annual Boiler Service Prices

The table below shows how much different types of boiler services cost in the UK:

Boiler services are typically quoted as a fixed cost job. As supply costs for this type of job are low (typically around £5), boiler service quotes you get are mostly going to be for the labour cost of servicing the boiler.

If anything more than a minor repair is required, then this should be quoted and agreed seperately.

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What Type of Tradesman Do I Need for My Boiler Service?

The type of tradesman that you need to hire to service your boiler depends on the type of system you have:

• Gas boiler service— It's a legal requirement to have a Gas Safe registered heating engineer carry out any work.
• LPG boiler service — Also need a Gas Safe registered engineer, but with an additional LPG qualification.
• Oil boiler service — Require an OFTEC-registered technician for installation and any maintenance tasks.
• Electric boiler service — Should be serviced by a heating engineer or a qualified electrician with boiler experience.

How Much Do Different Types of Boilers Cost to Service?

Below we take a further look at the costs involved when hiring a tradesman to service your boiler.

Gas Boiler Service Cost

Gas boilers are the most popular type of boiler in the UK.

These units tend to be the go-to choice for properties which have a mains gas connection, as it's a more cost-effective way to heat a home, as gas prices per kWh are significantly lower than electricity prices per kWh.

A gas boiler service involves visually inspecting the boiler for any visual faults and internally inspecting the boiler’s components for any signs that it isn’t functioning correctly.

So, how much is a gas boiler service going to cost you?

The average gas boiler service price is between £85 and £120.

Electric Boiler Service Cost

As with oil and gas boilers, it's recommended to have electric boilers serviced annually to ensure they're operating safely and efficiently.

For electric boilers, servicing them every year isn't a legal requirement but it does provide a regular opportunity for a professional to identify any minor issues before they develop into something more serious.

During the service, a professional will inspect and test internal components, like electrical connections, the heating element, and the thermostat.

Amongst other things, they'll also check that the built-in safety features are working correctly and check for other common problems (e.g., limescale or water pressure problems).

The average electric boiler service price is between £75 and £110.

Oil Boiler Service Cost

An oil boiler service involves cleaning the boiler and flue, cleaning the oil burner and replacing the nozzle, checking and replacing the oil filter, inspecting the fuel tank, and performing a full combustion test.

An oil boiler service costs on average around £90 and £125.

LPG Boiler Service Cost

LPG boilers are common in off-grid locations where mains gas isn't available. While they don't use mains gas, they do use a form of gas - LPG - which is stored at your property for use.

The cost to service an LPG boiler is between £90 to £120.

Additional Boiler Service Costs

When you get your boiler serviced, some additional heating jobs may need to be carried out if the engineer finds issues with your system.

These can either be small upgrades to improve energy efficiency, or they may be larger, more invasive upgrades to your heating system.

Common Additional Boiler Servicing Costs

To fix common heating problems, your heating engineer is likely to suggest the following:

• Radiator Bleeding — Radiators with trapped air won't distribute heat effectively, and may increase your running costs as the heat isn't being distributed efficiently. The cost to bleed radiators is around £100.
• System Power Flush — If your heating system is old and running inefficiently, your heating engineer will likely suggest a power flush to clear the system of debris, sludge, and other buildup. A power flush costs £400.
• Smart Thermostat Upgrades — Swapping your existing thermostat for a smart model can lower your heating bills and give you greater control over your heating schedule via your phone. The cost to install a smart thermostat is £265.

Larger Heating Upgrade Costs

If you own an older property and haven't updated your heating system in a number of years, your heating engineer may uncover bigger problems while servicing your boiler that require attention:

• New Radiators — If bleeding your radiators and flushing your system still hasn't improved your radiator performance, it might be time for new ones. New radiators cost around £200 per radiator.
• New Boiler Installation — Boilers have a lifespan of 10 to 15 years. If your heating engineer finds that the cost of repairing is more than the cost of a new boiler, they may suggest you replace your boiler instead. Installing a new boiler costs around £2,400.

What's Involved in a Boiler Service?

In the UK you are not permitted to legally carry out a boiler service yourself, unless you are qualified to do so. As such this is not something you can do as DIY job, due to both the legal and safety requirements involved.

In order to have your boiler serviced by a professional, you can hire a heating engineer via MyJobQuote. To ensure you get the best price, it's always recommended to get three separate quotes first (free, no obligation to commit).

Once you have booked your boiler service, below is a guide to what you can expect to happen during the process.

Before the Service

• Visual Inspection — The engineer will carry out a visual inspection of the boiler to ensure it appears to be in full working order. This is done according to current standards to look for leaks or corrosion. They will also visually check the flame in your boiler.

During the Service

• Boiler Casing Removal — Removing the boiler casing, the engineer will then check internal components to ensure everything is working correctly. They will clean the inside of the boiler, including the burner, spark probe, main injector, and heat exchanger.
• Flue, Gas Pressure, and Flow Check — The flue will be inspected to ensure there are no obstructions inside the terminals and that it's fitted correctly and safely. The engineer will also test to ensure the boiler has the correct gas pressure and flow, inline with the manufacturer’s guidelines.
• Safety Checks — All safety devices that shut down the boiler in the event of a fault will be tested to ensure they are working correctly.

After the Service

• Final Checks — Once all the above points have been completed and any action taken, the boiler will be fired up to check for any faults while it is in operation.

How Do I Know If My Boiler Needs a Service?

If you think something's wrong with your heating, and your annual boiler service isn't due, it can still be a good idea to book a heating engineer to check your system.

It is important to note that unresolved issues relating to fuel-burning boilers could lead to a risk of carbon monoxide poisoning, and electrical faults can become a potential fire risk.

If you're experiencing any of the following, it could be a sign that your boiler needs a service:

• Strange noises coming from the boiler — While some running noise is normal, constant banging, knocking, or gurgling sounds aren't normal, and could mean your boiler needs attention.
• Repeated loss in water pressure — It's normal to top up your pressure every now and again, but if it's repeatedly dropping after being topped up, it might mean there's a leak somewhere in your system.
• Lack of heating — If your heating simply isn't working, your boiler is probably the reason and needs some maintenance.
• Change in flame colour — In gas boilers, the flame should be blue. If it's changed to yellow or orange, you need urgent attention from a Gas Safe engineer as this could lead to a dangerous situation.
• Error codes showing — If your boiler has an error code that you're unable to clear yourself, it's time to call in a local heating engineer.

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How Often Should You Service Your Boiler?

You should check with your manufacturer to see the service period of your particular boiler model.

As a general rule of thumb, a boiler should be serviced 12 months after it has been installed, and it should then be serviced every 12 months thereafter.

Local Engineer vs National Provider for Boiler Services

When booking your annual boiler service, you have a choice between a local heating engineer or a national boiler servicing company.

Let's go over the main pros and cons of each service:

Local Heating Engineer

Pros

• ✔ Better availability at short notice, usually available for same-day or next-day services.
• ✔ Local heating engineers have lower overhead costs, which translates to lower service costs for you.
• ✔ Direct communication with your local heating engineer.
• ✔ More personalised service if you choose the same local company for your boiler service year after year.

Cons

• ✖ If it's a one-person company and the engineer is sick, you will need to wait for them to return to work.
• ✖ May not have complete 24/7 emergency call-out service.

National Heating Engineer

Pros

• ✔ Nationwide availability, so even if you move house, you can use the same company for your service.
• ✔ Boiler service from a recognised name brand.

Cons

• ✖ Long wait times for availability, and you'll need to go through multiple levels of contact to eventually book in with a provider.
• ✖ Typically higher costs as national companies have big overheads to recuperate in service and call-out fees.
• ✖ You may be met with pushy sales tactics to get you to purchase unnecessary add-ons to your service.

We recommend using local heating engineers to service your boiler to ensure a fast, reliable service, at the best price possible.

Checklist: Hiring a Heating Engineer to Service a Boiler

When you get your boiler serviced, there are a few things to consider when looking for the right tradesman for the job:

• Are they Gas Safe registered? Only engineers listed on the Gas Safe Register are legally allowed to work on a gas boiler, while electrical boilers should be serviced by a heating engineer or qualified electrician.
• Does the engineer have the right experience? Make sure the engineer has worked on your type of boiler previously, and can provide confirmation that they have the correct qualifications and certifications required.
• Do they have public liability insurance? Although not a legal requirement, it's standard for any tradesmen to have insurance that provides protection in the event of accidental damage or injury while servicing or working on your boiler.
• Have you asked for recommendations or reviews? See if any friends or family use a boiler engineer they would recommend, check for online reviews and read customer feedback on MyJobQuote.
• Have you gathered at least three quotes? Search for boiler specialists using MyJobQuote and ask for more than one company for a detailed quote, this will help you compare prices in your area.
• Have you received an itemised breakdown? Ask for a clear, itemised breakdown of the costs, so you can not only ensure you're paying a fair price but won't be hit with any unexpected charges.
• Do they offer any guarantees on their work? When you get your boiler serviced, especially if any additional work is carried out, you should always receive a guarantee or warranty in the event of any issues.

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