Hi, a plumber came today to fit a faulty component in my boiler as we have no hot water. In trying to remove the faulty component which was seized up, he damaged two other components which now also need replacing. He went away and will telephone me with quotes for the other two parts that I now need. Can you please tell me who is liable for these other parts? It seems unfair to me that I should now have to pay for further parts and work. Advice greatly appreciated.