Well I never. I asked a question and seem to have set off a debate. No need to debate about my misfortune! Johnmelad - thank you for the support and Gas Wizzard - I'm sorry some woman took you to court for something that was clearly not your fault but this is different - don't tar us all with the same brush. At no point in my question (was just a question) did I say I ever had any intention of taking anyone to court OR did I say I expected the company to make good the damage - quite frankly, can't be bothered with the hassle. I merely asked if I should pay for a service I clearly did not recieve. And yes, he didn't have a crystal ball and he was a lovely man but the lovely man didn't do what I employed him to do nor did he do what I think is a basic test. And yes, real plumbers - public liability and everything.
He uncovered the leaking fitting but it wasn't then leaking, so he carried on looking. I don't think many plumbers would have thought of turning off the water to make it start leaking, I wouldn't have.
£240 is steep, though. Doesn't your insurance cover this?