Always look for the Gas safe symbol. All Gas safe engineers have an ID Card with their Photo and the Gas Safe symbol. Employing an untrained person to work on your gas supply may save you money but they could cost you and your family their lives.
Latest research has highlighted a growing trend. 65% of work undertaken by unqualified engineers was found to be unsafe. In fact a worrying number were so unsafe that they had to be disconnected completely. Always Always Always check the credentials of the person you employ to work on your gas appliances and system. Look for the gas safe logo not just on the vehicle they are driving but on their personal ID Cards.
Check the engineers qualification and fit a Carbon Monoxide Alarm