What Does A Boiler Service Include?

A boiler service is vital maintenance to uphold your boiler’s proper operations and safety. The procedure involves an in-depth check-up and cleaning of your boiler’s various components by a registered engineer.

Keep reading this article to discover what a boiler service involves, its critical aspects, and the necessity for an annual checkup. We will go into further details, including the kinds of maintenance that will enable your boiler to operate for years and other warning signs that show you need to book a service. Understanding all of this information and acting on it can help maintain the boiler’s performance.

What is a boiler service?

A boiler service is conducted by an authorised engineer or technician and is a thorough inspection and maintenance procedure carried out on a boiler system. A boiler service is performed to ensure a boiler is working safely, effectively, and reliably.

As part of the service, various components are inspected, cleaned, and tested for any failures. This includes leak checks, examination of the combustion chamber, and of the safety controls and devices, clearing internal parts, and verifying signs of damage or corrosion. Similar to how all preventive gas systems work, a boiler service enhances the appliance’s longevity, increases its efficiency, and reduces the threat of breakdowns and hazards.

What’s included in a boiler service?

A routine service for a boiler is carried out to ensure the machine is performing optimally while ensuring safety for the user. The following are some of the possible components of a boiler service:

Visual inspection

A visual check is where the service engineer inspects the boiler to make sure there are no leaks, damages, or corrosion.

Combustion chamber inspection

A combustion chamber check to ensure it is in good condition and also to check any material build-up that could affect the efficiency of combustion.

Flue gas analysis

Engineers may analyse flue gas composition to see if the boiler is burning fuel efficiently and safely enough.


Cleaning of various internal parts, such as the burner, heat exchanger, and flue passages, to remove debris and deposits that can affect performance.

Checking controls and safety devices

A check of all safety devices, including any control devices, before being reset to meet the manufacturer’s recommendations

Pressure and leak testing

A pressure/leak test is conducted to see whether the boiler is losing pressure and integrity.

Efficiency testing

Efficiency testing so that it can be tested to ensure that the boiler is working at maximum efficiency, which will help lower fuel bills and running costs.


The last part is documentation. At the end of your service, the engineer may provide you with a report that notes all the work they’ve done, any repairs needed, and the condition of your boiler.

What's included in a boiler service?

Why should you get your boiler serviced annually?

There are various reasons you should opt for a boiler service at least once a year, including the following:

Ensures safety

Your home will be safer if trained engineers can detect and resolve potential dangers, such as gas leaks, carbon monoxide emissions, or malfunctioning components. This not only prevents accidents but also keeps you safe from harmful health problems and makes your home more secure.

Additionally, preventative maintenance enables the boiler to operate more efficiently, minimising the possibility of unexpected malfunctions that could strand you without heat or hot water. It is critical to service your boiler to be confident that it is operating safely and effectively all year.

Maintains efficiency

Marking an annual date in the diary ensures that the boiler’s efficiency is maintained and energy consumption minimised. By cleaning away dirt and grime and tuning the components, engineers optimise the boiler and encourage it to perform at the very top end of its efficiency spectrum. By cleaning away debris and deposits, the boiler runs more efficiently, heat transfer is improved, and fuel wastage is reduced.

Regular attention to minor issues such as these makes a real difference to how the boiler is able to run and results in lower heating bills. It also stops efficiency from disappearing as the boiler is used, prolonging its life and maximising the energy-saving opportunities available to the consumer.

Extends lifespan

Proper maintenance discourages early degradation of core parts, and this means they will remain in perfect condition for longer. Besides, servicing is also an opportunity for technicians to identify and fix minor problems. This will help prevent the emergence of more complicated problems that require expensive repairs or even replacements.

Annual services will limit the risk of sudden breakdowns, as well as repair and replacement costs. In other words, servicing will ensure the boiler stays in perfect condition for longer, and then you will continue to receive an uninterrupted hot water and heating supply.

Validates warranty

Another reason you need to have your boiler serviced annually is that your warranty depends on it. The majority of boiler warranties demand regular boiler servicing to restore the guarantee. If you don’t follow this procedure, the warranty could become null or void. Consequently, you’d be required to foot the bill for the repair or replacement.

However, you will maintain the warranty top-up by having an annual expert service your boiler. This allows you the peace of mind that you will receive professional help if you require it, reducing your risk and preserving your investment over time.

Legal compliance

Boiler servicing is equally critical from a legal perspective, particularly for landlords and owners. In some areas, specific boiler maintenance is legally required to maintain the security of a property’s occupants. Ignoring these obligations could result in fines, sanctions against use, or other more severe penalties, such as lawsuits.

Annual servicing helps you comply with the law, which helps to protect your property and your occupants or tenants. Boiler maintenance also reduces liability in the event of an incident or risk linked to the boiler. It may alleviate worries and guarantee that everyone in your house or property may feel secure and at ease.

Peace of mind

Regular annual boiler servicing delivers the confidence you need to know that your heating system is safe, functional, and efficient. With yearly inspections and maintenance checks, there is less chance of a sudden, unforeseen malfunction, particularly in the winter when you need heating the most.

Additionally, you have the peace of mind that a professional engineer has evaluated practically the entire system and acted proactively to address any lurking issues. It also assures you that the risk of nonavailability of heating or hot water due to boiler malfunction is kept low, allowing you to rest easy in a warm and cosy house. Annual servicing guarantees a worry-free home in both the literal and figurative senses.

Signs that you need to get a boiler service

It is important to know the signs that your boiler needs servicing in order to keep it running effectively and safely. The following are some of the signs that it’s time to get your boiler checked and serviced immediately:

  • Unusual noises: Hearing banging, whistling, or gurgling can be a warning that something is wrong.
  • Increased energy bills: If your energy bills unexpectedly spike and you haven’t increased usage, it may be an indication of lower efficiency.
  • Uneven heating: If certain parts of your house become colder or even overheated, or if your in-floor heating becomes erratic, there may be an issue with the boiler.
  • Frequent cycling: Boilers that cycle on and off at intervals shorter than ideal are having problems that need fixing.
  • Visible leaks: A leaking boiler or pipes can become dangerous if left unchecked.
  • Yellow flames: Your flame must produce a constant blue hue. A flickering yellow flame dissipates carbon monoxide.
  • Pilot light issues: If your pilot light is continually going out or is difficult to ignite, you’ll want an expert to check it out.
  • Strange smells: A bad smell, especially gas or burning, is also cause for concern.
  • Old age: Boilers are only designed to last for a specific period of time.
  • Lack of annual servicing: If you have not had your boiler serviced in over a year, the odds are that it is time to get it checked.
Signs that you need to get a boiler service

Choose SD Plumbing & Heating for your boiler service

For all your boiler service needs, SD Plumbing & Heating is the choice for professional, reliable, and expert care. With years of experience and dedication to quality, our professionals will provide your boiler with the full service it requires. From standard maintenance to diagnosing and repairing, we do it all with unparalleled precision and care.

Choose SD Plumbing & Heating for the confidence of knowing that your boiler is in knowledgeable hands. Do not hesitate to contact us; call now to schedule your appointment so we can put our expertise to work for you to preserve your heating system operating appropriately all winter.