had to have mine done this week as nice weathers here and there was no gas at all in it, found out theres a leak possibly on the condenser or the pipes leading to it. they put a die in the gas to trace future leaks quite common appartently but being a friend doing it i got abit of a bargain, he was going to charge me £40 for doing it half that was his cut. The normal charge £85+vat which sounds lot and i seen it all over the place for differnt prices. anyone had this done and how much did it cost you? the charging that is not the rest thats goner cost me 1 condenser loads of labour and a few rounds in the pub.