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Boiler Servicing: What is a boiler service & how much does it cost?


If you want to avoid any unexpected breakdowns or prevent your boiler from falling victim to a fault, an annual boiler service will maintain the wellbeing of your boiler and keep your manufacturer warranty valid. An annual boiler service will include checks and tests carried out by a Gas Safe engineer to ensure that your boiler is still operating effectively and efficiently without any faults.
In this article, we will take you through what you can expect during a boiler service, why it’s important to have your boiler serviced, and the costs involved.

What is a boiler service?

So, what’s involved in a boiler service? This full assessment delivers boiler care to ensure it’s in full working order. Here’s an overview of what to expect.
A Gas Safe engineer will visit your home and conduct various tests on your boiler to make sure that it’s functioning safely and effectively. A thorough boiler service checklist will usually include:

  • Boiler control checks (room thermostat etc.)
  • Gas and pressure flow tests
  • Inspection of the inside of the boiler
  • Flue and combustion checks
  • Inspection of water and gas pipework
  • Checks on all electrical connections

In addition to the above, Gas Safe engineers may also check that all seals are intact while trying to identify any corrosion or leaks from pipework and internal components within the boiler.

After your annual boiler service, the engineer will provide you with any information or advice you need to help maintain it between services. Manufacturers have checklists to ensure that a qualified engineer does everything that is necessary to keep your warranty valid.

How much is a one-off boiler service?

A one-off boiler service price can be anywhere from £60 to £100 depending on the age and model of your boiler. Prices vary from provider to provider (sometimes drastically!), and in addition to the one-off boiler service cost, you may have to pay for repairs if a fault is discovered. Repairs can cost upwards of £100. So, if you’re wondering how much it costs to service a boiler, you’ll need to take all these into consideration.

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Boiler Servicing: What is a boiler service & how much does it cost?

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Who should service your boiler?

First off, your boiler should only ever be serviced by a professional, and you should never attempt it yourself. As a general rule of thumb, Gas Safe engineers can only install and service gas boilers.

In the case of an oil boiler, you’ll need to have your boiler serviced by an OFTEC-registered engineer. If you have a coal, wood-fired, or any other solid-fuel burning boiler, you should contact a HETAS-registered engineer.

If you’re unsure whether the engineer visiting your home is fully certified, you can ask them for some identification, or search online using tools such as the Gas Safe register to find out whether they are qualified.

Why is boiler care and maintenance important?

Annual boiler services are essential to make sure that yours is working correctly. As well as providing you with a fully functioning boiler, there are other reasons why services and checks are beneficial.

One of the main reasons to invest in an annual service is to save money on energy bills. A fully checked and maintained boiler is more efficient because a service will flag any leaks or wasted fuel.

Another reason to budget for boiler care is to help keep you and your family safe. In some instances, a defective or damaged boiler can be unsafe and leak poisonous gases such as carbon monoxide. Carbon monoxide is also known as the “silent killer” due to its colourless and scentless properties.

It can be hard to tell if your boiler starts to leak carbon monoxide. Therefore, it’s important that you install a carbon monoxide alarm to detect any gas leaks.

Why you should get boiler cover

Boiler cover (also known as boiler breakdown cover or gas boiler breakdown cover), is a form of protection in case something goes wrong. It usually comes as a monthly or annual subscription and will help cover the costs of engineer callouts and labour, as well as any parts required if your boiler breaks down or encounters a fault.

Most boiler cover packages will offer the same thing, with the main differences being the excess cost for an engineer visit, access to a 24/7 helpline, and the monthly cost of the cover package.

Some boiler cover packages may or may not include an annual boiler service.
A yearly package that includes an annual service is usually different to the cost of monthly boiler cover. So, it’s worth comparing prices and searching for annual boiler service quotes and monthly equivalents that suit your budget.

Also, the different packages provide different services and there might be one package that works perfectly for your home. For example, if your boiler is slightly older and more susceptible to breakdowns, it may be in your best interest to find cover that includes a higher number of call outs and repairs in the price. Otherwise, you may need to pay extra if the number of call outs exceeds the limit.

Make sure you compare boiler cover products before you decide on which package to go for, and most importantly, always double check the terms and conditions!

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