I called out the gas emergency number tonight and they've capped off the external gas supply as it was leaking. They say I now need to find a Gas Safe plumber to reconnect it. I've had builders in doing refurb work including moving a boiler. They walked off the job but are established locally so won't want a dodgy reputation. They are the only builders who have been involved with the gas. I've texted them to ask if they would like the opportunity to reconnect it for their own peace of mind/ reputation but heard nothing. Could this gas leak just be a product of wear and tear perhaps? Just seems very likely they've upset some type of connection but maybe I'm leaping to conclusions. Any thoughts?