Ring Transco on 0800 111 999 - this is a 24hr emergency number.
If you smell gas, think you have a gas leak or are worried about fumes which you think may be carbon monoxide, please call the above number immediately.
You should then proceed to:
- Open all doors and windows to ventilate the property
- Do not turn on/off any naked electrical switches
- Extinguish all naked flames, do not smoke, strike matches or do anything which could cause ignition
- If there are any electrical security entry phones/locks, please open door manually.