Is your current boiler meeting your daily needs? Repair bills mounting up? Is your boiler noisy, temperamental, and costing a small fortune to run? It may be time to replace it with a new high-efficiency condensing boiler.

  • Call us today to book a free, no-obligation quote.
  • We will assess your requirements and recommend the best boiler for your needs and provide a comprehensive, fixed price quote, with no hidden extras.
  • We fit boilers from Grant, who are industry-leading manufacturers, with up to 5 years parts and labour warranty.
  • We will install the boiler at a time that suits you. Our engineers work to the highest standards and will remove all rubbish and leave the work area clean and tidy.
  • All our work adheres to all current regulations and is fully insured and guaranteed.
  • Finance is available from Phoenix Financial Services.


We are often asked why boiler servicing is so important. On average, your boiler is one of the most expensive appliances in your home. It is working away in the background, providing hot water in the summer, and hot water and central heating in the winter. As long as it doesn’t break down, most people rarely give it a second thought. However, when it does break down, major problems arise!

As well as the inconvenience, it’s an expense that most people could do without. A regular boiler service will not only reduce the risk of costly breakdowns, but it will also ensure your boiler is working at optimal safety and efficiency.


When it comes to boiler breakdowns, Deehan Boiler Services Ltd. have the knowledge and experience to get you up and running again as quickly as possible.

All our engineers are OFTEC Registered and regularly attend boiler manufacturer training courses, to keep up to date with all the latest models, as well as controls, etc.

If you have a boiler or heating system breakdown, give us a call for advice, or to book an engineer.


What is a Power Flush?

A Power flush is a cleansing process for your boiler and system which removes any dirt, sludge, rust, and debris that may have accumulated within your system over time. If these substances are left in your heating system, they could cause blockages or corrosion and ultimately reduce the efficiency of your boiler which could even eventually lead to a breakdown.

Signs you may need a power flush:

  • Cold spots on your radiators, particularly at the bottom
  • The radiators require constant bleeding
  • Noisy radiators and boiler
  • Radiator leaks
  • Frequent breakdowns
  • Boiler constantly needs to be restarted
  • Central heating takes a long time to heat up
  • Some radiators struggle to heat up more than others
  • Discoloured water when radiators are bled
  • Cold radiators but hot pipes