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Gas Boiler Service

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Gas Boiler Service

Knowing what is needed to maintain your gas boiler, when and how often it is necessary and then finding a qualified and reliable engineer can be difficult. It is commonly advised that you make an appointment with a Gas Safe Registered engineer once a year so they can check the boiler, central heating system and any gas appliances to ensure their safe and proper operation.

What is the process of the boiler service inspection?

A gas boiler service starts with a visual check to ensure that the boiler and all associated pipework is currently installed and positioned. The engineer will check it is working properly and check for any obvious problems. Then they will remove the boiler casing to look at its components and check the boiler is working safely and efficiently before cleaning the key components inside the boiler.

What should a gas engineer definitely check?

  • Correct gas pressure and flow
  • Flue and combustion. A flue gas analyser will be used to make sure the boiler is burning the right mixture of gas and air and that the flue is not blocked
  • Electrical connections are clean and in good condition
  • Fans and other key components are working efficiently
  • Seals are intact
  • Electrodes are in a good condition
  • Safety devices are checked
  • Condensate trap and pipe is not blocked
  • Water and gas pipework

How often should boiler maintenance happen and what to look out for?

Boiler maintenance should not be overlooked as it may cause costly damage in the future. It is recommended you should have your boiler maintained at least once a year by a qualified engineer with experts recommending that you do this before you start using the system for the winter. Annual boiler maintenance is essential to have an efficient heating system that consumes less fuel.

How can I keep my boiler in a good condition until the next check?

A gas boiler service requires time, experience and the proper equipment to ensure the boiler is kept in good condition and prevent unnecessary damage. As for the factors to consider for proper boiler maintenance, you should watch out:


Don't forget to plan professional maintenance - service the boiler at least once a year.

Combustion Control Sheet

Don't forget to ask for the burn control sheet from the engineer.

Specialized Professional

Choose a Gas Safe Registered engineer, who will ensure compliance with all current standards.

How long does a standard maintenance last?

A gas boiler service takes at least 30 minutes but times vary depending on the model, the brand and complexity of the system. After the procedure, the technician can provide a service report, stating what exactly they did and how you can maintain the boiler to help prevent any damage.

Can a plumber undertake boiler maintenance?

Plumbers usually have extensive experience with finding and fixing leaks, fitting your washing machine or installing your new bathroom. However, this does not guarantee that they will have the qualifications, knowledge or experience to perform a gas boiler service, carry out proper maintenance or diagnose potential problems. If you are uncertain, cross check their credentials and with the Gas Safe Register.

What will happen if the required boiler maintenance is not done?

If your boiler warranty is still valid, any repairs are usually covered by the warranty. If it is more than 12 months old and you have not performed the necessary routine maintenance, the warranty may not be valid. As a result, you may have to cover the cost of repairs - a cost that can potentially be avoided with regular maintenance.

With proper and timely maintenance of the gas boiler, you be helping to take care of the following:

  • Ensuring maximum performance
  • Extend the life expectancy of the boiler
  • Improved efficiency, which will help save fuel and lower your bills
  • Reduction in the amount of pollutants emitted

Do I have to have a gas boiler service if my property is for sale?

If you are in the process of selling a property, you are not legally required to carry out a boiler service (unless this has been agreed as a condition of sale). A history of boiler servicing is often requested as part of the sale process so remember to keep all relevant documents for your records.

Do I have to have a gas boiler service if my property is rented?

Landlords are legally responsible for repairs to heating, hot water, gas appliances, pipes, ventilation, wiring and sanitary fittings. Boiler repairs and servicing therefore fall under your responsibilities. It is also the landlord’s legal obligation to service any gas appliances with the frequency required by the manufacturer. In addition, you must have an annual gas safety check conducted by a Gas Safe Registered engineer.

You must keep copies of these checks, and they must be supplied to tenants at the beginning of each tenancy. Copies of the gas safety check record must be kept for at least two years.

What does a gas boiler service cost?

It is up to you whether you would prefer the services of a locally based engineer or a larger, regional or even national company. With a larger company, the average cost of the service is about £100-125. With some research, you might be able to find local services that cost from £60-90. The cost of choosing larger companies is typically 25-50% more expensive.

Why choose an engineer from our platform for your gas boiler service?

With our platform you will find experienced, reliable engineers to undertake your gas boiler service. Our professionals have many years of experience, with all types of boilers, and can offer you an immediate and cost effective solution.

Do you need a boiler service?

If you do, then we have the solution. Simply submit the type of service you require, the location and when you require the service. In a few seconds, we will show you a shortlist of the available engineers operating in your area, along with their pricing so you can book your appointment straightaway with confidence!

Related Services

Frequently Asked Questions about your Gas Boiler Service

A typical boiler service begins with a visual inspection for any obvious defects or installation issues. The gas engineer will then remove, inspect, and clean all of the main components in the boiler ensuring each part is fit for purpose and problem-free. The components serviced include the main burner, flue ways, the heat exchanger, and ignition pins.
The cost of a boiler service can vary depending on the type of boiler, its age and the complexity of the system. If you are overdue for a service on your gas boiler then simply click here in order to find a shortlist of qualified gas engineers in your local area. You can select a time and date to suit you and book online, 24/7.
Boiler servicing is currently not a legal requirement to either sell or let your property. It is, however, a common practice to be asked for a boiler servicing history when you are selling a property. If you are renting then whilst the service is not a legal requirement, a valid gas safety certificate is.
It is recommended that boiler servicing is carried out each and every year. This will ensure that the boiler is kept in good working order and that it is running efficiently, which in turn, will help keep your bills down. It is also worth noting that failing to have your boiler serviced can invalidate the warranty or even your home insurance should the claim be boiler related.
You may think that if your boiler is working fine then you don’t really need to have it serviced. Whilst ‘saving’ some money on the servicing costs might seem like a good way to save money in the short term, ultimately, regular servicing can save you money by keeping the boiler running efficiently and recognizing any minor defaults before they become large, more expensive ones.