Boiler installation and replacement
Replacing an ageing boiler or planning changes to your heating? Explore the options for a replacement that suits the property, the existing system and your household’s hot water use.
Explore boiler installation →Heating & Gas Services
TNG SERVICES · HEATING & GAS
Look after the system that keeps your home comfortable
From a boiler replacement to routine maintenance or a hot water problem, start with the part of your system that needs attention. TNG Services works across Hertfordshire and North London, with service information below to help you plan your enquiry.
Boilers, heating circuits and hot water
Boiler servicing
Arrange routine maintenance for your boiler and tell us about any concerns before the visit. Servicing and repairing an existing fault have different purposes, so it helps to be clear about what you need.
Arrange boiler servicing →Power flushing and system cleaning
Slow or uneven radiators do not always need a power flush. Learn how a system assessment helps establish whether cleaning, balancing or separate component work is the appropriate next step.
Explore heating system cleaning →Unvented cylinder servicing and repairs
Your hot water cylinder has its own maintenance requirements, even when a boiler heats it. Discuss routine servicing, changes in hot water performance or a specific fault with the cylinder and its controls.
Explore cylinder servicing and repairs →One system can involve more than one job
A boiler service, a radiator problem and cylinder maintenance are not interchangeable requests. If you have more than one concern, include them together so the scope of the visit can be discussed properly.
Describe the symptoms rather than guessing the repair. Tell us whether the issue affects heating, hot water or both, when it started and whether any recent work has changed the system. Any additional work should be explained and agreed.
Find the details for your area
Open the relevant service above to find its local pages. These explain the work in more detail and give you a useful starting point for an enquiry. Include your postcode so coverage and the next steps can be confirmed.
Tell us what your heating or hot water needs
Planning an upgrade, arranging maintenance or reporting a problem? Send the appliance details and a short description of the work.
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