What to do in an emergency



You should call the emergency line if:

  • You can smell gas
  • You have low or high pressure
  • You suspect carbon monoxide poisoning
  • There has been a gas explosion or fire
  • You have no gas

Once you have called the emergency helpline, take the following actions, if it is safe to do so:

  • Turn the emergency control valve off at the meter. Only do this if your Site Engineer has advised that you are allowed to take this action. If the emergency control valve is located in a cellar or confined space, where there is also the smell of gas, do not enter, and leave the premises immediately
  • Open all doors and windows to ventilate the property
  • Do not turn any electrical switches on or off
  • Put out naked flames; do not smoke, strike matches or do anything which could cause ignition
  • Manually open any electric doors or gates




Alternatively, you can contact your local Distribution Network Operator (DNO) using the details below. The DNO maintains the electricity lines that connect your premises to the electricity network. If you are not sure which DNO to contact, refer to the supply number on your invoice. The first two digits of the second line of numbers indicates the relevant area and DNO for your site.



For example, the supply number shown here indicates that the area is East Anglia and the DNO is UK Power Networks.






​10 East Anglia UK Power Networks  0800 316 3105  Fore Hamlet, Ipswich, IP3 8AA
​11 East Midlands ​Western Power Distribution ​0800 678 3105 Pegasus Business Park, Castle Donington, DE74 2TU
​12 ​London ​UK Power Networks ​0800 316 3105 Fore Hamlet, Ipswich, IP3 8AA
​13 ​North Wales
(Merseyside, Cheshire)
​SP Energy Networks ​0800 001 5400 PO Box 168, Prenton, CH26 9AY
14 ​West Midlands ​Western Power Distribution ​0800 678 3105 Pegasus Business Park, Castle Donington, DE74 2TU
​15 ​North East England ​Nothern Powergrid ​0800 668 877 Houghton-le-Spring, DH4 7LA
​16 ​North West England ​Electricity North West ​0800 195 4141 PO Box 4375, Manchester, M61 OET
​17 ​North Scotland ​SSE Power Distribution ​0800 300 999 Inveralmond House, 200 Dunkeld Rd, Perth, PH1 3AQ
18 ​South Scotland ​SP Energy Networks  ​0800 092 9290 PO Box 8729, Bellshill, ML4 3Y
​19 South East England UK Power Networks ​0800 316 3105 Fore Hamlet, Ipswich, IP3 8AA
​20 ​Southern England ​SSE Power Distribution ​0800 727 282 Inveralmond House, 200 Dunkled Rd, Perth, PH1 3AQ
​21 ​South Wales ​Western Power Distribution ​0800 678 3105 Eliot Rd, Prince Rock, Plymouth, Devon, PL4 OSD
​22 ​South West England ​Western Power Distribution ​0800 678 3105 Eliot Rd, Prince Rock, Plymouth, Devon, PL4 OSD
​23 ​Yorkshire ​Nothern Powergrid ​0800 375 675 Houghton-le-Spring, DH4 7LA