Long story, sorry, had a pretty major ammount of building work started in 2004. One part was to convert the integral garage in two room, build another two rooms over it and obviously extend the roof to cover it. Builder was hopeless, left us high and dry, 3 months work turned into 18 months and we finally sacked him with just cosmetic work to finish ourselves. All work signed off by building control. OH has thought there was some movement in the house for a while (I have just ingnored him thinking he was being paranoid!). We eneded up getting a structural engineer out yesterday and whilst we are waiting for the full report he has told us the old roof was not structurally sound to build on to, it had failed and has had to be propped immediatly as there was a chance the whole house would come down . The roof needs to be fixed by next spring at the latest (abot £10,000 worth of work). Obviously I am bloody angry, I couldn't sleep with worry last night, we don't have the money to pay for the repairs and there is no way we can raise it either. However I don't even think it should be our responsibility, this must either fall on the shoulders of the architect/structural engineer who did the plans, or the joiner (who according to the structural engineer yesterday should have seen that the support was not right). I am now waiting for the report but need to try and find a good solicitor to represnt us. I have no idea "what sort" of soliciotor to ask for IYKWIM. Any ideas of avenues to persue or recommendations would be greatfully recieved, we are in the Greater Manchester area.