Need some advice guys. Just had a call at work from the landlord next door whome I've never met before. Outside the back of my work is a rather large tree which has been there some time, 30+years is the only guess I can give you guys, and the neighbour has a bricked storage unit with a pathway built on top which leads to a rented flat above the shop. Now the tree in question has apparently done some damage to his storage unit and he wants something done about it from my end, as the tree belongs to me of course. I've not seen the damage myself, but he claims that the routes of the tree has pushed one side of the wall of his unit inwards which is understandable, considering where the tree is positioned. He's pretty decent about it and just wants me to sort it out ASAP really, but I was wondering if I'm responsible for any damage to his property? Obviously the plot I'm on is rented, and the landlord happens to be my mum, so I would rather sort it out myself to save her some stress. Also, should I get the council involved with the tree removal, or is it all down to me? I actually do fear that removing the tree and routes would cause his whole unit to callapse also, so want to do it properly to save any hassle in future. Any help or advice is much appreciated.