Gas leaks and carbon monoxide

What to do if you smell gas, think there is a gas leak or are concerned about carbon monoxide poisoning.

If you think you can smell gas call the National Grid immediately on 0800 111 999.

If you smell gas, you must:

  • turn off the gas at your meter
  • open all windows.

If you smell gas, do not:

  • switch on or off lights, appliances or other electrical items
  • bring naked flames (like matches or cigarette lighters) into your home.

Once you have contacted the National Grid they will send someone to check for leaks. If they find any leaks they will turn off your gas supply and ask you to contact Notting Hill or your gas contractor.

Carbon monoxide

Carbon monoxide is a poisonous gas. It's colourless, odourless and tasteless but it can be fatal.

Carbon monoxide can escape from appliances like boilers and fires if they are not working properly. Carbon monoxide gas can also be produced if your gas appliance is faulty, or if the chimney or flue is blocked.

To make sure everything is working safely it's essential that you have a valid gas safety certificate by getting a gas safety check done every year.

Danger signs of carbon monoxide

The danger signs of carbon monoxide are:

  • gas flames that normally burn blue, burning orange or yellow
  • sooty stains on or above appliances.

More information

For more information about gas leaks or carbon monoxide contact the National Grid, your Housing / Leasehold Officer or gassafety@nhhg.org.uk.