Can anyone recommend a expert tree surgeon? The neighbours are developers and have done significant damage to two of my trees (mature Oak and large Laurel). Not basic pruning but hacking off large branches and leaving no growth points. They are planning to hack branches off a 30m Ash which is over 200 years old next. I need to take quick action to protect the trees. I understand neighbours are not permitted to cut branches in a way that prevents new growth or alters the height of a tree and if they do they can be liable for damages. Anyone know any more?