Get a Boiler Service: what's included, costs & repairs

Man with wrench and boiler

Your boiler is an expensive appliance in your home, and a necessary one, so it makes sense to part with some cash once a year to look after it. So, why should you get your boiler serviced and how often? How much will it cost? Read on to find out.

Boiler service

What is a boiler service? Well, a full gas boiler service includes a carbon monoxide test, a gas usage test, following a checklist and an RGII certificate. An oil boiler service usually runs along the same lines, surprisingly enough.

Let's have a look at why it's so important for you to get a boiler service, as well as how much it costs.

Is it worth getting a boiler serviced?

There are many advantages to having your boiler properly and regularly serviced, including:

  • Safety. We can’t stress enough how important it is for the safety of your household.
  • Prolonging the life of your boiler.
  • Making your heating system more efficient - and an energy efficient system means cheaper bills.
  • Reducing the possibility of a boiler breakdown and expensive repairs.

Why is safety such a concern when it comes to boilers? Put simply, faulty boilers can cause dangerous issues in your home, such as carbon monoxide poisoning. According to the HSE, six people die per year on average from carbon monoxide poisoning. It’s simply not worth the risk.

Make sure that your boiler is serviced by an RGI (Registered Gas Installer). Servicing by unregistered installers may not be up to safety standards, and it also runs the risk of invalidating home insurance or BER (Building Energy Rating) certificates, issued by the SEAI.

How much should a boiler service cost?

While a boiler service may start as low as €60, it typically costs between €85 to €100. If any parts need to be replaced, this will cost extra. While this may seem pricey, getting a boiler service each year is a lot cheaper than having your boiler replaced. A new boiler can cost over €2,000!

In addition to regular boiler services, another way to save money is to switch your energy provider each year. Since new customers are almost always offered the best rates, it's important to switch every 12 months to take advantage of the cheapest prices. For help comparing offers, check out our guide on the cheapest suppliers in Ireland.

Selectra can help you save money on your energy bills.Call one of our knowledgeable advisers for free advice now. Call 1800 816 036 or get a free callback now.

How often does a boiler need to be serviced?

Your boiler should be serviced at least once a year. By getting it serviced each you, you can make sure it's operating properly and reduce the chances of it breaking down. If you don't get your boiler serviced at least once a year, the warranty may be voided.

In addition to having your boiler serviced once a year, you can also do some basic maintenance yourself. Head to our Boiler Maintenance guide for more information.

What is done in a boiler service?

Don’t think that an installer can just arrive at your house, stick his head around the back of your boiler, run a carbon monoxide test and that’s all folks. There is a comprehensive boiler service checklist that the RGI should follow.

As you’re paying for this service, don’t be afraid to go through it with them and make sure every point has been covered. It should take the RGI installer approximately 45 minutes to 1 hour to service your boiler and the inspection should include:

  • Visual inspection: To identify any easily visible safety faults and ensure appropriate ventilation is in place.
  • Pre-service check: The RGI should switch the boiler on and check for faults or any indications of system failure.
  • Main component check: The RGI should then open up the boiler and inspect the inside for any damaged components, clean the inside thoroughly , as well as check electrical work, the flue, and piping.
  • Combustion check: Last but not least, the engineer will check if the boiler is combusting properly using a flue gas analyser (a portable electronic device which measures combustion from fossil fuels). They will then perform a gas-tightness test to ensure there are no gas leaks.

After all the tests have been performed the engineer will tell you if anything needs to be repaired and provide you with a declaration of conformance, which you should ONLY sign if you are happy they have carried out all the tasks above.

When in doubt, the SEAI have produced a useful checklist which you can use while your boiler inspection is being carried out, to make sure that you’re getting your money’s worth.

Boiler service providers


Although several independent companies do provide cheaper gas boiler servicing, sometimes it can be more reassuring and easier to organise it with your energy supplier if they provide this option. Plus you can be certain that the engineers arriving at your home are fully-insured RGIs.

Bord Gáis Energy Boiler Service

Bord Gáis Energy provides a gas boiler service with a 60 day warranty period. Payment can be made in instalments. The team of fully-insured and registered gas installers are available in any area, regardless of where you live. A big plus for us is that Bord Gáis is flexible with appointments and can even arrange callouts on Saturdays. To top it all off, for every €2 you pay off your service bill, you’ll receive 1 Tesco Clubcard point.

The cost of the basic boiler service is €99, which is more or less in line with other energy suppliers. If you opt to spread out your payments, it comes to €9 per month for 12 months. Bord Gáis also offers two boiler care packages that are a bit more expensive.

For more information on these cover plans, head to our Bord Gáis boiler service guide. To book a Bord Gáis boiler service, you can either call 01 611 0145 or book it online via the Bord Gáis website.

Energia Boiler Service

An Energia gas boiler service costs €95. This boiler service includes a 28-point check service, as well as a 30-day warranty. To book a boiler service with Energia, you’ll need to call 1850 719 377 or arrange callback on the supplier's website.

Electric Ireland Gas Boiler Service

Electric Ireland provides a gas boiler service for just €89. The service includes a comprehensive 26-point safety check. The engineer will also detail exactly how efficient your device is, as well as give you advice on how to reduce your energy bills.

The service is well reviewed and can be booked online.

SSE Airtricity Boiler Service

With SSE Airtricity, you can book a gas boiler service online for €99. The service includes a 19-point safety check on your boiler, as well as the RGII certificate.

Gas boiler service Dublin

gas flame

Surveys have revealed a high degree of variation in prices across Ireland. They have shown that a gas boiler service tends to be more expensive in Dublin and in the surrounding areas.

To those Dubs who are well used to paying above-average for the privilege of living in the capital, this probably comes as no surprise. Boiler service prices in Cork and Galway, for example, can start from €60. In Dublin, prices generally start from €85 and tend to be closer to €100.

Oil boiler service

Due to the fact that oil boilers are less common than gas boilers, there are fewer companies servicing them. On the bright side, companies that do service oil boilers tend to offer better hours for callouts. In some cases, the servicing may even be cheaper. This will come as a relief to those with oil boilers considering that heating your home with oil is much more expensive than with gas.

Oil boiler services can cost from €59 to €89. They are generally provided by smaller independent companies rather than by energy suppliers. Much like with a gas boiler service, oil boiler services should include a visual inspection, component check and combustion check. Hometherm Ireland has a handy checklist you can use to make sure your oil boiler service is up to scratch.

One particular thing to note with oil boilers is that if deposits produced during the combustion process are not removed properly by cleaning during servicing, they can harden and destroy key components of the boiler. Therefore, it’s extra important to have your oil boiler serviced once a year.

Common boiler replacement parts pricing

If you're still in any doubt about the importance of having your boiler serviced regularly and maintained in good working order...Then check out how much it could cost you to replace and faulty or deteriorated parts.

Boiler parts Average replacement cost
Boiler fan €280
Diverter valve €222
Boiler ignition €128
Air vent €117
Electronic logic board €327
Pressure relief gasket or valves €117
Thermostat control €122
Combi Boiler thermocouple €107
Liquid pumps €257
Gas Valve €257
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The services and products mentioned on this website may only represent a small selection of the options available to you. Selectra encourages you to carry out your own research and seek advice if necessary before making any decisions. We may receive commission from selected partner providers on sales of some products and/or services mentioned within this website. Our website is free to use, and the commission we receive does not affect our opinion or the information we provide.