Posted: 09/11/2014 at 11:32
I would talk to your neighbours first. Explain what you would like to do and why. They may be concerned with loss of privacy etc and need reassurance or be grateful that you are willing to do a job for them...They may offer to cut back themselves or give you the go ahead to do whatever you like...but better to speak to them before you take the saw to something as it can not be reattached!!
What kind of fruit trees are they? Cherries need pruned in summer, apples in winter or disease can set into tree in the case of cherries for example.
One of the rules(as I understand it) is whatever overhangs into your property belongs to your neighbours and should be returned to them - I think this could end up causing more issues so I usually dipose of any prunings coming over the fence myself instead of throwing them back over the fence!