Gas emergencies

Smell gas?

If you smell gas or think you have a gas leak, call 0800 111 999.

This is the Gas Emergency Services free 24-hour emergency line.

Carbon monoxide

Also call this number if you are worried that fumes containing carbon monoxide are escaping from a gas appliance.


  • Open all doors and windows to fully ventilate your property.
  • Do not turn any electrical switches on or off.
  • Extinguish all naked flames and do not smoke, strike matches or do anything which could cause ignition.
  • If there are any electrical security entry phones/locks in the property, please do not use them and open doors/windows manually.
  • All gas appliances need an adequate air supply to operate safely and must have a flue to remove the waste gasses from the property.
  • Make sure that air vents in doors, windows or walls are not blocked and that the flue from the fire or boiler does not become blocked or obstructed.

Advice from the Health and Safety Executive

Electricity emergencies

Power cuts

Your electricity network operator looks after the safety and security of your electricity supply.

If you have an electrical emergency or there’s a power cut in your area, contact your operator right away.

The UK operator for the areas we cover is UK Power Networks.

Report a power cut

Contact UK Power Networks

London: 0800 028 0247  (or 0333 202 2022 from a mobile phone)


Eastern England: 0800 783 8838 (or 0333 202 2021 from a mobile phone)


Online: ukpowernetworks.co.uk

Faulty appliances

If you smell burning or if there is smoke coming from your fuse board, lights or sockets – or if you or anyone in your property is at immediate risk:

Call 999 immediately

More information and advice

For advice about electrical safety, visit Electrical Safety First.

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