If you smell gas in your home and suspect you have a gas leak in the house, please leave your home immediately and call the Nation Gas Emergency Number 0800 111 999
If you can do it safely, turn off your gas supply which will commonly be found next to your gas meter. Move the handle until it is at 90 degress from the pipe to shut off the gas supply.
You can easily begin to feel ill as a result of a gas leak. This can include lightheaded, dizziness, nausea and headache symptoms.
Light a naked match or turn on the gas hob or other similar naked flame sources.
Turn any electrical devices on
Use any other decice that could cause a spark