Safety Tips If you believe you can smell gas: Turn the gas supply off immediately at the meter com. Extinguish all sources of ignition. Do NOT smoke. Do NOT operate electrical light or power switches. If necessary, ventilate the building by opening windows and doors. Ensure access to the premises can be made. Report the gas escape to Transco on 0800 111 999. Dangerous Gas Equipment: Coal effect fires repeadedly turning off Gas fires giving off a yellow flame Gas fires with black marks or soot on the tiles Always call a registered CORGI engineer