Analysis of Gas Safe Register’s inspection data revealed that one in three gas customers in Great Britain – around 7.69 million households – admitted that they had never had their gas appliances checked or maintained.
This was despite 82 per cent of people recognising that they should do it in order to protect themselves from gas dangers.
Gas fires were identified as the most dangerous gas appliances in homes.
One in three gas fires checked by the Register were unsafe, compared to one in 11 boilers and one in 13 cookers.
Birmingham was identified as the most unsafe city, with the highest number of homes found with dangerous gas appliances – one in three households were unsafe (34 per cent).
This was closely followed by Cardiff (31 per cent), Edinburgh (31 per cent), Norwich (28 per cent) and Ipswich (28 per cent).
The public is still being caught out by unregistered gas fitters, pretending to be legal engineers.
Nearly 3,000 illegal gas jobs have been investigated by Gas Safe Register since 2010, of which nearly two in three (61 per cent) left victims’ homes unsafe and one in five were so dangerous that the Register had to turn off the gas appliance immediately.