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Gas Emergencies

What to do if you smell gas or think there's a leak.

Smell gas or need to report a gas explosion or fire?

Stay calm, you’re in safe hands. Here’s what to do if you can smell gas or are concerned by any gas-safety related matter.

Call the National Gas Service on 0800 111 999 immediately.

There are a few measures that you can take to help the situation.


  • Turn off the gas supply
  • Open all doors and windows


  • Turn on any electrical switches
  • Use any form of naked flame which could ignite the gas, such as: gas hob, smoking, striking any matches

The type of information that the emergency service may require will include:

  • Site address
  • How many people are at the site
  • Where you can smell the gas
  • Your name and contact number
  • Any other circumstances or access details to the site
During this uncertain time, we’re working hard to ensure we continue to provide continuity of service and supply to our business utility customers during the COVID-19 outbreak. Read what we're doing to help our customers during Covid-19