A gas safety check involves the inspection of all gas appliances in a property. These appliances include gas fires, cookers and boilers. The procedure is distinct from a gas service, and must be carried out by a Gas Safe Registered engineer.


A gas safety check ensures:


  • All gas appliances are functioning at the correct pressure
  • All gas appliances are burning gas correctly and there is enough air supply
  • All flues and chimneys are located away from windows and are clear - so the appliance can emit gas from the property in a safe manner.
  • All cut-out systems and other safety devices are operating as they should be.

What exactly is a 'Gas Safe' engineer?

For a heating engineer to be considered 'Gas Safe', they must have passed the Gas Safe certification. The necessary apprenticeship may take up to three years to complete. It's important to check your heating engineer's Gas Safe ID to ensure they are qualified to carry out the necessary work.

Why is a gas safety check important?

A gas safety check helps ensure your gas appliances are working properly, so they do not leak harmful gases like carbon monoxide into the property. Carbon monoxide poisoning can seriously harm you and your family members.


How frequently should a Gas Safe check take place?

Homeowners should have a gas safety check carried out every 12 months.


Landlords must obtain a gas safety certificate (CP12) every 12 months. The Gas Safety (Installation and Use) Regulations 1998 legally obliges landlords to have this inspection carried out.


Winter is a very busy time for Gas Safe engineers, so it might be a good idea to organise a safety check during summer months - when it may also be cheaper.

How long does a safety check take?

A check on a normal-sized domestic property is likely to take about an hour.

Does the homeowner need to be present during the check?

A homeowner can be present during the check if they wish. However, this may not be necessary; the engineer may be able to carry out the test and leave the completed certification on the kitchen table. Years ago the engineer may have had to ask the homeowner questions about previous checks, but, if the check is being undertaken by the same company as before, the engineer may have access to digital records of the historical inspections.