A Guide to Oil Boiler Services

Boiler Service

If you have a boiler, then it’s important to have it regularly serviced. Servicing your oil boiler ensures that your heating system is running as safely and efficiently as possible, while preventing future issues.

In this guide, we’ll cover everything from what an oil boiler service is to what you can expect from your appointment. We’ll also provide some top tips on how to prepare for your service.

What is an Oil Boiler Service?

An oil boiler service is a routine manual maintenance check that is performed by an OFTEC-registered engineer. 

During a service, the engineer will fully clean and test the boiler, as well as make any necessary adjustments or repairs. They will also test the boiler to make sure that it’s performing optimally. 

Why Do I Need to Have My Boiler Serviced? 

The main reason to have your boiler serviced is to ensure that it’s in good working condition.

Regular maintenance prevents costly boiler repairs or replacements in future, because any issues will be addressed during the inspection. By scheduling regular checks, you can also prolong the lifespan of your boiler.

Boiler services can also increase the safety in your home. Without proper monitoring and maintenance, there is a higher risk of your oil furnace emitting toxic emissions that can result in carbon monoxide poisoning. Our oil boiler engineers will thoroughly check for signs of any leaks, to ensure your boiler is safe to use.

Failing to have your boiler serviced can result in more frequent breakdowns and reduced efficiency. These problems can end up costing you more money overall. Therefore, it’s important to keep on top of your boiler maintenance to avoid unnecessary financial burdens.


The frequency of boiler services depends on factors, including the type of boiler, its age, and the type of oil used. However, we recommend that you have your boiler checked at least once a year.

In addition to your annual service, there are additional measures you can take to enhance the efficiency of your oil boiler.

And in certain circumstances, your boiler may need servicing before the annual schedule if it shows warning signs as outlined below:

Signs That Your Boiler Needs a Service

It is best to book a service appointment as soon as possible if your boiler is showing the following signs:

  • The boiler is making strange noises
  • There is leaking water or oil coming from the boiler 
  • There is a delay in heating, or your boiler is not heating rooms as well as it used to
  • The boiler is emitting strange odours
  • There has been an unusual increase in fuel usage

What Is Included in a Boiler Service? 

There are several checks and processes that our OFTEC-registered engineers will carry out for a boiler service, including:

  • Test your boiler for pressure
  • Look for leaks or corrosion
  • Check if there is any water ingress to the tank
  • Check the nozzle
  • Clean the trap and components
  • Check for soot deposits
  • Conduct a carbon monoxide check


Oil boiler services generally last up to two hours. During this time, our qualified engineers will perform all the necessary inspections and checks as listed above. These checks will confirm that your boiler is in good working order.

We will arrange an appointment that suits you best, so you don’t have to worry about the time frame when booking a service.

Preparing for Your Boiler Service

To get the most out of your boiler service appointment, there are a few things that you can do to prepare. Here are a few tips:

  1. Turn off the boiler and let it cool down before the service appointment.
  2. Remove any debris or obstructions from around the boiler
  3. Book your appointment before the winter months to avoid any winter breakdowns


Regular boiler servicing is a crucial part of keeping your home comfortable and safe. It also helps to maintain the efficiency of your boiler, saving you money on your energy bills in the long run. 

Contact us today to book an annual oil boiler service near you and get peace of mind knowing that your boiler is in good hands.