In an emergency

Gas emergency


If you have a gas emergency please immediately call The National Gas Emergency Service on 0800 111 999. This is a 24 hour emergency line.


Your gas emergency could be:

  • 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:


  • If it is safe to do so, and your Site Engineer has advised you that you are allowed to in these circumstances; turn the emergency control valve off at the meter. If this is located in a cellar or confined space where there is also the smell of gas, do not enter, and leave the premises

  • Open all doors and windows to ventilate the property

  • Do not turn on/off any electrical switches

  • Put out naked flames; do not smoke, strike matches or do anything which could cause ignition

  • Manually open any electric doors or gates


Power cut

DONG Energy is your electricity supplier, but your local distribution network operator (DNO) maintains the power lines that connect your premises to the network. In the event of a power cut, contact your DNO to report it using the number in the table below.


If you are not sure which DNO to contact, you can refer to your supply number. The first two digits of the second line of numbers indicates the relevant area and distribution network operator for your site. For example, the supply number shown here indicates that the area is Eastern England and the DNO is UK Power Networks.











​10Eastern EnglandUK Power Networks 0800 783 8838 Fore Hamlet, Ipswich, IP3 8AA
​11East Midlands​Western Power Distribution​0800 056 8090 Pegasus Business Park, Castle Donington, DE74 2TU
​12​London​UK Power Networks​0800 028 0247 Fore Hamlet, Ipswich, IP3 8AA
​13​North Wales
(Merseyside, Cheshire)
​SP Energy Networks​0845 272 2424 PO Box 168, Prenton, CH26 9AY
14​West Midlands​Western Power Distribution​0800 328 1111 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​SEE Power Distribution​0800 300 999 Inveralmond House, 200 Dunkeld Rd, Perth, PH1 3AQ
18​South Scotland​Western Power Distribution ​0845 272 7999 PO Box 8729, Bellshill, ML4 3Y
​19South East EnglandUK Power Networks​0800 783 8866 Fore Hamlet, Ipswich, IP3 8AA
​20​Southern england​SEE Power Distribution​0800 072 7282 Inveralmond House, 200 Dunkled Rd, Perth, PH1 3AQ
​21​South Wales​Western Power Distribution ​0800 052 0400 Eliot Rd, Prince Rock, Plymouth, Devon, PL4 OSD
​22​South West England​Western Power Distribution ​0800 365 900 Eliot Rd, Prince Rock, Plymouth, Devon, PL4 OSD
​23​Yorkshire​Nothern Powergrid​0800 375 675 Houghton-le-Spring, DH4 7LA