Hi due to a gas safety issue i have to change my hob and I am wondering what the installation costs might be if i switch to an induction hob (apart from the purchase cost of the hob) as I presume I would need both a registered gas installer to take out the old hob, cap off the gas connection at the hob and switch the gas back on at the meter (for my heating as the gas network disconnected it) and I would also need an electrical installer to put in the induction hob. Any ideas of what the costs might be?