Servicing
Who should I get to service my gas or oil boiler?
As with all heating appliances, your boiler should be serviced on a regular basis to ensure that it is operating efficiently and safely. The service should be carried out by a qualified and experienced service technician / service engineer.
Why Should I Get My Boiler Serviced?
An annual boiler safety check and boiler service, carried out by a professional service engineer ensures that your boiler is functioning properly. Regular servicing of your boiler is important as it ensures that the boiler is working to the specifications designed by the boiler manufacturer. This will help prolong the life of the boiler as well as reduce the risk of faults and expensive repairs down the line.
The efficiency of boilers, both oil and gas fired, deteriorates with use. There are several reasons for this, the key ones being:
- Soot production from the combustion process coats the heat exchanger surfaces.
- The critical air-to-fuel combustion ratio changes due to gradual component wear.
A boiler service will remove any sooting and, by adjustment, will re-establish the optimum combustion conditions. But while optimising operating efficiency is paramount in these days of rising fuel costs, there are other important benefits in having your boiler serviced:
- By checking the safety controls, early failures can be detected and rectified in good time.
- A variety of operational systems and components will be checked including:
- Oil leaks
- Boiler start-up performance
- Noises that give an early warning signal of pending component failures.
Oil boiler Servicing Checklist.pdf (size 40.3 KB)
Just like cars, boilers can operate for many years without servicing but generally with fuel consumption penalties, undermined reliability and even safety implications.
What should I expect from a Boiler Tec engineer?
Boiler Tec promise to all customers that punctuality is a must. A boiler service should entail little disruption to your routine. A routine service will take approx 1 hour and on departure your boiler will be left to you with a safe and efficiently operating appliance.
Our service engineer will go through your boiler thoroughly and follow a strict code of practice to ensure our customers get the highest results from their boiler.
Is there really a benefit to servicing my boiler?
Because of the difference between individual installations, it is difficult to predict what saving servicing will bring for a particular house. The following chart is conservative and gives the increase in fuel costs each year that the boiler is not serviced.

For example, servicing a kerosene boiler, which has not been serviced for 3 years, will bring about an immediate fuel reduction of some 5%.
How often should I service my boiler?
Most boiler manufacturers recommend an annual service, primarily on the grounds of safety but also to ensure reliability. On efficiency grounds it is well worth servicing oil and gas boilers annually because the soot build-up is such as to significantly increase oil consumption.
- Visual Fire and Risk assessment (required for Insurance)
- Visual and obvious detections of oil and water leaks
- Assessment of Electrical controls
- A smoke test
- Examination of flue gas
- Burner examinations and repairs, including nozzle replacements
and electrode replacements if needed. - Combustion examination including air to fuel ratio
- Check solenoid valve
- Oil pump checked, pressures adjusted if needed.
- Baffles cleaned and returned to goodness
- Chamber cleaned
- Oil tank checked.
- Condensing trap cleaned and primed.
- Float Changed if needed.





