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Boiler Servicing

Here’s an alarming statistic: In England and Wales, 250 hospitalisations yearly were attributed to non-fire-related carbon monoxide poisoning. This was between 2001 and 2010. This is the reason it is important to have an annual boiler service in County Durham.

For many people, boiler servicing is one of those expenses they can definitely do without. However, the importance of routine boiler servicing cannot be overstated. Regular boiler checks can help warrant it runs efficiently and safely. And that’s just for starters.

While unfortunate to note, many people have questions about boiler servicing they don’t have answers to. How long does a boiler service take? What does a boiler service entail? What is a boiler service to begin with?

For the uninitiated, here are the answers to some of the most frequently asked questions about boiler servicing:

What is a boiler service?

In essence, a boiler service is conducted to help ensure your boiler and central heating system are running as efficiently and as seamlessly as possible. During the service, a Gas Safe registered engineer follows a comprehensive boiler service checklist. 

This is done to ensure all the bases are covered and all the components are functioning accordingly.

How long does a boiler service take?

Typically, a boiler service lasts for at least 30 minutes. However, the length of servicing can vary depending on the brand and model. Once done, the engineer will provide a service report. If you have any questions regarding the procedure, don’t hesitate to ask.  

In most cases, the engineer conducting the servicing is more than happy to answer your questions and address any concerns you might have about the procedure.

When should I have my boiler serviced?

Ideally, boilers should be serviced annually. This will not only ensure the heating system is running accordingly, but in many cases, it is also a requirement to keep the warranty valid. The ideal time of the year to do the boiler servicing is during the summer since you will be less reliant on your boiler.

However, you don’t have to wait for the scheduled servicing if you think your boiler is not working properly. Get in touch with a registered and qualified engineer right away so any issues are addressed immediately before they become a health and safety hazard.

Where in the UK are boilers most likely to break down? 

Statistics show that most boiler repairs are needed in West Midlands, London, and the North East, so it’s safe to assume County Durham is on the list.

On the flip side, boilers are least likely to break down in North West, Yorkshire, and Scotland.

Here’s another interesting fact: We are 13 minutes from Durham Cathedral and 22 minutes away from Coundon, in Bishop Auckland, and 18 minutes from Peterlee near the Durham Heritage Coast.

Where in the UK are boilers most likely to break down

How much will a boiler service cost?

How much you will pay for full boiler service will vary and will depend on two key factors—where you live and the type of unit you have. However, a standard boiler servicing can cost between £50 to £80. 

On the other hand, a high-efficiency condensing boiler service can cost between £80 to £160. If you live in London, it is likely that you will be charged more compared to those who are living in rural areas.

What do I need to know about boiler cover and service plans?

If the boiler is no longer covered by warranty, it might be a good idea to consider a boiler plan that covers servicing. For a monthly fee, the cost of your yearly service is covered and you will have peace of mind knowing any unexpected repair bills will be taken care of. 

What are telltale signs my boiler needs servicing?

If you answer yes to any of the following, it is recommended that you schedule boiler servicing as soon as possible:

  • The flame in the boiler is irregular
  • The water pressure drops
  • The boiler refills regularly or overheats
  • There are smoke marks or stains on the appliance
  • The pilot light goes out often
  • The boiler flame is yellow
  • It has been more than a year since the last service

What can I expect during a boiler service?

Below are some of the things your Gas Safe engineer will conduct during a boiler service:

Visual inspection 

Your engineer will assess if the boiler still meets safety requirements and standards. Your engineer will also check the flame in your boiler and look for any signs of corrosion or leaks.

Removal of the boiler casing 

Key components will be checked to ensure everything is working accordingly. Other parts like the burner, main injector, spark probe, and heat exchanger will also be looked into.

Flue check

The engineer will check if the flue is fitted safely and if there are no obstructions in the terminals.

Gas pressure check 

This check is done to make sure the boiler is working at the correct pressure.

Boiler fired up

This process allows the engineer to check for any working issues and faults.

Why is boiler servicing crucial?

Below are some of the reasons why you should consider yearly boiler servicing a must:


Regular boiler servicing can help ensure dangerous scenarios like carbon monoxide leaks are kept at bay. Carbon monoxide is a colourless and odourless gas that can cause brain damage and even death. 

If you think your boiler is not working properly or behaving oddly (i.e. flame is orange as opposed to blue), have it checked by a Gas Safe engineer right away even if your annual service is not due yet?


It would be tempting to forego boiler servicing to save some money. However, regular boiler checks will actually save you money in the long run. Think about it, a boiler that’s working accordingly can help keep your energy bills down. 

Also, when a potential fault is spotted and corrected at the earliest possible time, you will not only spare yourself from the inconvenience, but you’ll also save money that will otherwise go to costly repairs.

How much will a boiler service cost


As mentioned, a yearly service can help guarantee all the components are in the best working condition and can deliver top-notch efficiency for a long period of time. Without routine servicing, your boiler might become less efficient and might use more fuel. This can translate to additional costs for you.


If you want to save money and ensure your safety (and that of your loved ones) at all times, you should consider annual boiler servicing a wise investment rather than an expense you can do without. 

Also, if you think your boiler is behaving oddly, don’t hesitate to get in touch with us. We are based in Durham and we cover all areas of the North East. We have over 15 years of experience and we even offer 24-hour emergency call-outs!