If you can smell gas please call the free 24-hour National Gas Emergency helpline on 0800 111 999
Substandard gas work
This number changes every year. The unique number allocated to a Gas Safe registered business, which is always six digits or less.
This number is displayed on the front of the Gas Safe ID card and often on the websites and marketing materials of registered businesses. Natural Gas: Gas which is supplied into homes via an energy supplier. LPG: Liquefied Petroleum Gas, which is supplied in cylinders and often used outdoors or for caravans, cabins or boats.