If you smell gas then call free on

0800 111 999*

  • Open doors and windows
  • Turn off gas at meter (unless the meter is in a cellar or basement)
  • Don't use electric switches or naked flames

All calls to the National Gas Emergency Service and National Enquiry lines may be recorded and monitored.

​Making the call

When you dial 0800 111 999* your call will be routed to the Call Centre.

It doesn't matter what time of day or night you ring - we have trained operators working round-the-clock waiting to take your call.

What to do if you smell gas (sign language)

We're very proud of the partnership we're building with RAD to support the deaf community and we thank them for supporting the energy industry in creating this safety message.

​Questions, questions!

A call handling agent will log all the appropriate details onto a computer. The kind of information you'll be asked for will include:

  • The address/location of the suspected gas escape or gas emergency
  • How many people are at the property where the smell is most noticeable?
  • How long the smell has been noticeable?
  • Is the smell coming from the cellar/basement?
  • Are any neighbours affected?
  • Your name and phone number
  • Any special circumstances or access information

Getting accurate address details is very important as we want to make sure we send engineers to exactly the right place. You will be asked to verify these details for this very reason. Your address and postcode are particularly important.

You'll be asked a series of questions designed to help us build a picture of the reported gas escape or gas emergency. From these details, we can identify the right gas safety advice for you - such as:

  • Opening doors and windows
  • Turning the gas off at the meter unless the meter is located in the cellar/basement
  • Avoiding the use of any naked flames or electrical switches

All calls to the National Gas Emergency Service and National Enquiry lines may be recorded and monitored.

​Send for an engineer

Once all the information has been gathered, it will be sent electronically to an engineer for action.

How long will you have to wait for an engineer to arrive?

We aims to attend all uncontrolled escapes within one hour, and all controlled escapes within two hours. A controlled gas escape is one where the person reporting it has confirmed that the gas emergency control valve serving the premises has been turned off and the smell of gas has gone. An uncontrolled gas escape covers all others.

Sometimes, our engineers will be sent to a leak that has been reported outdoors. Around a quarter of these turn out not to be gas leaks at all. Around 80% of the gas escapes we attend are inside buildings. That means the escape is related to internal pipework, a boiler, gas fire or other gas appliance.

What if the gas leak is indoors?

Our engineers will always 'make safe' when called to a suspected gas escape. However, the emergency service provided by us under the terms of its licence doesn't cover repairs to appliances or installation pipework which can't be completed within 30 minutes.

So what do I do next?

Once we have made the property safe, our engineer will explain that any work on appliances (e.g. cookers, boilers or fires) has to be carried out by a Gas Safe registered engineer. To find a Gas Safe registered engineer in your area, please visit the Gas Safe Register website or call on 0800 408 5500.

​What is Carbon Monoxide?

Carbon Monoxide (CO) is a poisonous gas that is produced when fossil fuels - coal, wood, oil and gas, are burnt without adequate air ventilation. Approximately 4,000 people are diagnosed with CO poisoning each year.

CO is:

  • Colourless
  • Odourless
  • Tasteless

The symptoms of CO poisoning include:

  • Headaches
  • Nausea
  • Tiredness
  • Dizziness
  • Chest and/or stomach pains

If you experience any of the above symptoms you should seek medical advice straight away.

Three tips which could save your life:

1. Ensure gas appliances are installed, maintained and fixed by Gas Safe registered engineers only, find one in your area at www.GasSafeRegister.co.uk

2. Have your gas appliances checked annually by a Gas Safe registered engineer. Sign up to www.staygassafe.co.uk for a free reminder service

3. Install an audible carbon monoxide alarm which will alert you if dangerous levels of CO are present.

In a medical emergency, don't delay: phone 999


gas incidents

Occasionally, we are called to deal with a major incident involving a problem with one of our assets. We define 'major' as something that affects a significant number of households. This section details some of our standard information around what's usually a gas incident (but may be something else). When there is a live incident we will publish information around that specific incident in our 'In your area' section and on Facebook and Twitter.