01387 268 868 (Dumfries)
01556 503 150 (Castle Douglas)


Our skilled engineers are fully SNIPEF certified, and Gas Safe and Water Safe registered, providing a number of domestic boiler services.

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Domestic Boiler Services

Domestic Boilers

At Derek Mitchell Group, we offer a number of services in relation to gas and LPG. All of our engineers are fully SNIPEF certified, and Gas Safe and Water Safe registered.



"Great service. From booking to completion absolutely faultless, highly recommend."

Boiler Service

"Could not ask for better, boiler on the blink and a load of visitors coming, phoned and got Michael who could not have been more helpful. Thank you to all concerned - I cannot remember the name of the engineer, but he was extremely confident and capable, and did a very neat and tidy job. I will have no hesitation in recommending this company. They are also very reasonably priced - very satisfied all round."

Boiler Repair

Providing a number of domestic boiler services, as listed below:

  • Appliance installation
  • Boiler installation
  • Central heating system installations and repairs
  • Central heating pump installation and repairs
  • Gas testing and certificates
  • Immersion heater installation and repairs
  • Radiator installation, bleeding and repairs
  • Thermostats and thermostat valve installation and repairs
  • Powerflushing
  • Vented and unvented cylinder installation and repairs.

If you do not see the service you are looking for, or are unsure of what service you require, please do not hesitate to contact us and speak to one of our engineers for further information.



Powerflushing is extremely important in the maintenance of an efficient central heating system.

Over time sludge and contaminants can build up in your central heating system.  ‘Magnacleanse Powerflush’ is a revolutionary method of flushing these contaminants from your central heating system.

By removing these contaminants, you reduce the risk of a build up of sludge within your heating system allowing it to run effectively and efficiently for much longer. This saves you money, and decreases the likelihood of costly repairs being incurred in the future.


For any necessary repairs, a Derek Mitchell Group engineer will arrange to visit your home at a convenient time for you in order to diagnose any faults and advise you on the most suitable course of action, taking into consideration your budget and likely future needs.

We highly recommend installing a Magnaclean filter to your boiler. This filter helps to avoid common boiler damage caused by a build up of dirt in your heating system, which can result in costly repairs being required in years to come. To arrange a home visit, contact us today.




Domestic Projects

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Gracefield Arts Centre - Dumfries

Supply & installation of a new oil boiler and chemical flushing of the existing heating system pipe work.

Lloyd Limited - Carlisle

Mechanical and electrical installation on workshop extension for Lloyd Limited.

Westlands Country Park - Annan

Full design & build of electrical and mechanical services for Westland's Country Park.


Our people make us who we are

Derek Mitchell Group is a large, multi division contractor based in Dumfries & Galloway and working across the UK.

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