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Home improvements

You could be making a deadly mistake if you DIY on gas appliances

In a world of rising prices, it’s hardly surprising that one in three people say they’d fit a gas appliance themselves to save money. However, some things are worth paying for – and gas safety is one of them. If you work on a gas appliance without being registered, you’re putting you and your family at risk of gas leaks, fires, explosions and carbon monoxide poisoning.

Don’t leave your safety to chance – get a Gas Safe registered engineer in. Registered engineers retrain regularly to ensure that they are up-to-date with the latest appliances and innovations in the industry. Download our factsheet for more information on who can legally work on gas appliances.


Download our who can legally work on gas factsheet here



Many people now assign a home improvement project to one builder or project manager in order to save time and money. Whilst there are contractors who understand the importance of gas safety, worryingly many do not – over 100,000 home improvement jobs resulted in illegal gas work in 2011, and in all cases the work had been subcontracted out to a builder, contractor or project manager who had in turn employed an unregistered business to carry out the gas work.

If you’re using a subcontractor, you may find some of these guidelines useful:

  • You’ll want to find out if the job involves any gas work. If it does, make sure a Gas Safe registered engineer is employed to carry it out.
  • Even if you’re using a builder or project manager, you can still check yourself to ensure the engineer employed is Gas Safe registered.
  • If you’ve had a new appliance fitted, the registered engineer should be informing your Local Authority.
  • If you’ve recently had a new appliance installed and you’re unsure as to who has carried out the work, you can nominate your property for a free inspection.
  • If you think you’ve had gas work done by an unregistered engineer or business, you can report your concerns to us.

It is also worthwhile considering the potential impacts that home improvements or building work which do not directly involve gas could have on existing gas appliances. To do this you should highlight your concerns to any tradesperson ahead of any work commencing so that all potential risks can be assessed and managed. 

We have produced a factsheet to help avoid any unintended gas safety risk being created by home improvement work. It also contains a link to risk assessment templates produced by gas industry stakeholders, which can be used by your tradesperson or a registered business to assess and identify any potential risks for you and them.


Download our making home improvements factsheet here


Thinking of home improvement? Download our don't DIY with gas factsheet including top tips on how to stay safe.


Download our don't DIY with gas factsheet here


Maria’s story

In 2009, Maria lost her parents when they were overcome by carbon monoxide. The couple recently had building work done and the builder had dangerously enclosed the flue part of the boiler. Read more on Maria's story here.