Boiler Tips and Advice | What is a Combi Boiler Service?

What is a Combi Boiler?

Combi boilers (also known as combination boilers) have become more popular over the past few years, many homeowners are replacing more complicated central heating systems with a smaller and more compact combi boiler system. It is estimated that over half of new boiler installations in the UK are combi boiler installations.

Why Do You Need to Service Your Combi Boiler?

Making sure you have hot water and a warm home is a priority,  which is why it is important to book your combi boiler service for at least once a year. The maintenance should be carried out by an OFTEC or Gas Safe registered engineer.

The engineer will make sure your boiler is in good, working condition. By having an annual combi boiler service it can:

  • Help you save money by making your boiler more efficient.

  • Reduce the chance of expensive maintenance issues or breakdowns.

  • Make your boiler more reliable.

  • Protect your family from lethal carbon monoxide leaks.

What is Included in a Combi Boiler Service?

Combi boiler servicing can differ slightly depending on whether you have a gas combi boiler or an oil combi boiler, you can generally expect the engineer to do the following things during the combi maintenance check :

  • Carry out a visual inspection of the boiler and all related areas, to make sure that they adhere to current safety standards and legislations.

  • Complete a ‘firing test’ to make sure that the boiler is functioning correctly.

  • Check that the flue is providing adequate ventilation for the boiler, and is not blocked by debris.

  • Carry out a flue gas analysis test to check for carbon monoxide.

  • Clean away any dirt or debris in the system, and repair or replace any damaged parts.

  • Carry out an inspection of the internal components (e.g. heat exchanger, burner).

  • Remove and clean the boiler casing (if required).

  • Turn the boiler on, to make sure that it is working properly.

A combi boiler service usually takes around one hour to complete. When the engineer is finished, they will give you with a completed service report, which will contain details of their work.  

How Much Does a Combi Boiler Service Cost?

Typically, an oil combi boiler service costs slightly more than servicing for a  gas combi boiler. Location affects the price of a combi boiler servicing, a simple way to get an idea of how much your service will cost is to compare quotes from engineer based in your local area. MyBoilerService will let you see local engineers profiles, costs and ratings to let you pick who best suits the job. Try our services to see local engineer prices in your area today. 

Ready to get started? Book your Combi Boiler Service now! 

Finding a reliable, qualified local engineer to complete your service can take a lot of time and effort. Luckily, MyBoilerService is here to help. Our online system is designed to make booking a combi boiler service fast, easy and painless.

Simply click below to fill out our quick quotes form and view instant, online prices from trained and trusted engineers in your area today!  


View Prices Now


If you require a Combi Boiler Service, please select your boiler type (gas or oil) on the quote form and then leave a note in the comments box when you book. 

To find out more about combi boilers, visit our pros and cons page. 



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