Here they don't do or charge anything. They just say: "If you want it turned on again you need to have it inspected. And we won't inspect it until you had a licensed plumber fix it." Or just: "Get a plumber." And in an old house a gas leak usually turns into a full plumbing job. Old town (coal) gas contained a lot more water vapor due to its production than natural gas, so the joints sealed with hemp fibres dry out and start leaking a little. Not enough to smell gas or pose any danger but enough to fail a pressure test. So as soon as you touch anything you're most likely in for epensive new pipework and lots of dirt.
