What to do if you suspect a gas leak or smell gas

Can you smell gas or do you think there's a gas leak? The first thing to do is to make sure that you stay safe, so please:

  • don't smoke.
  • don't light matches or cigarette lighters.
  • don't turn light switches or anything electrical on or off. 
  • put out any naked flames such as candles. 
  • open all the doors and windows. 
  • turn off your gas supply at the meter (and leave it switched off until you're sure it's safe to turn it back on again). 

Call the National Gas Service Emergency Line on 0800 111 999 to report a suspected gas leak. They'll sort out the problem and tell you what to do to stay safe.

Is your gas off?

If none of your gas appliances are working then it's likely to be a problem with the gas supply. Call the National Gas Service Emergency Line on 0800 111 999 to find out more and to let them know that your gas supply isn't working.

Or could it be a problem with your gas boiler?

Call us on 0345 052 0000 to arrange for a Gas Safe™ registered engineer to take a look and make sure everything is running safely. We cover most of the UK, but we'll be able to check if we cover where you live as soon as you call.

Are you having problems with your gas prepayment meter?

If you've got a prepayment meter for your gas and your gas is off, even though it's in credit, please call us on 0345 303 3040.

Are you a business owner?

If a Gas Supply Emergency is declared, any business that uses more than 732,000 kWh (25,000 therms) of gas a year might be asked to stop taking gas. If your business uses more than 732,000kWh of gas a year, you must provide us with emergency contact details in case a Gas Supply Emergency is declared. You can do this by completing our online form.

Gas Supply Emergency

If you are a business and your local gas transporter contacts you and instructs you to stop taking gas, you must turn off all gas equipment safely and as soon as possible. It’s usually easier to turn off each appliance or piece of equipment individually, because if you turn off your supply at the main gas control valve, you’ll need to call out an engineer to turn the supply back on after the emergency is over.

Public appeals may also be made to turn down or turn off gas-using equipment. Please co-operate with these appeals as far as you can. When the Gas Supply Emergency has ended, you must not start using gas again until your gas transporter tells you to go ahead. Under the Gas Safety (Management) Regulations (1996), it’s a criminal offense to knowingly fail to comply with an instruction to stop taking gas. So if your gas transporter directs you to do so, you must act as quickly and safely as possible.