Boiler Service Checklist. What does a boiler service cover? (UK)


Scheduling an annual boiler service is an excellent way to ensure that your boiler is working correctly and efficiently. It can help to reduce the chances that your boiler breaks down without warning. It can also help to prolong the life of an older boiler.

A boiler service can only be carried out by a Gas Safe registered engineer. This means that your usual plumber might not be able to handle the job. Working with gas and gas boilers can be very risky, so you shouldn’t leave anything to chance.

Who needs to get a boiler service?

If you are a landlord, you are legally required to have your boiler serviced every year. When tenants move into your property, you are legally required to provide them with a copy of your Gas Safe certificate within 30 days. You will also have to ensure you have all gas appliances checked every 12 months.

If you own your own home, a boiler service is optional but advisable. Not only will this help to ensure that your boiler is safe to use, but it can also save you money on your energy bills by increasing efficiency.

What does a boiler service cover?

A boiler service aims to check that everything is working correctly and to ensure efficiency. In general, a boiler service should cover the following checklist of items:

  • Check the boiler controls are functioning correctly
  • Check and optimise gas and pressure flow
  • Inspect main components for damage or wear and tear
  • Ensure the flue and combustion releases are working correctly
  • Ensure safety devices are present and functioning
  • Check the water and gas pipework
  • Ensure electrical connections are working correctly
  • Check all seals are intact and not eroded

What happens during a boiler service?

A Gas Safe engineer will carry out the boiler service. You can request that they identify themselves and show their Gas Safe accreditation before they start work. They will need to access the boiler and the associated pipework. They will also need to access your thermostat and gas shut off valve. And finally, they will need access to the interior and exterior portions of your flue.

Once the service is complete, they will present you with a Gas Safety certificate which outlines their findings. If they identify critical faults, they will advise you on the safest course of action. Since Gas Safe engineers are qualified to carry out repairs, they may be able to fix small faults on the spot. If parts are required, they may need to return for a second visit.

Are all boiler services the same?

The checklist required for a Gas Safety certificate is the same, no matter who carries out your boiler service. However, some people may choose an enhanced service which also covers your central heating system. This will ensure that your radiators are working efficiently and that there are no leaks in the pipework. This type of service might include bleeding and balancing your radiators for improved efficiency. 

How much does a boiler service cost?

A boiler service will usually cost between £60-£120, depending on your location and the time of year. Getting a boiler service in the winter will be more difficult as this is the peak time for Gas Safe engineers. Boiler services in London will also typically be more expensive.

You can spread the cost and enjoy additional cover with a boiler cover plan from companies like YourRepair ( This will not only include an annual service but also acts as an insurance policy to cover the cost of callouts and repairs. Plans start from around £11 per month, which can help you to spread the cost.

About Author

LaDonna Dennis

LaDonna Dennis is the founder and creator of Mom Blog Society. She wears many hats. She is a Homemaker*Blogger*Crafter*Reader*Pinner*Friend*Animal Lover* Former writer of Frost Illustrated and, Cancer...SURVIVOR! LaDonna is happily married to the love of her life, the mother of 3 grown children and "Grams" to 3 grandchildren. She adores animals and has four furbabies: Makia ( a German Shepherd, whose mission in life is to be her attached to her hip) and Hachie, (an OCD Alaskan Malamute, and Akia (An Alaskan Malamute) who is just sweet as can be. And Sassy, a four-month-old German Shepherd who has quickly stolen her heart and become the most precious fur baby of all times. Aside from the humans in her life, LaDonna's fur babies are her world.

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WPJ Heating
10 months ago

Wow!! The information you have shared here is very useful. Thank you for sharing all of the information with us.

Guest Post
9 months ago

You are absolutely right at this point! this is very informative post