The house that we're in the process of buying has been vacant for 2 years so the garden is a jungle! The back boundary has several established trees - which provide gorgeous natural screening - but some of their (large) branches are massively overhanging our garden. We would obviously approach the neighbours about our intention to cut back the trees but, if they turn out to be 'unfriendly' , can we still go ahead and trim anything that is on our property? Any advise would be great, please.