Go down to your local county court
and get a booklet on 'Small Claims'
Repair the damage yourself and keep the receipt
send one letter to your neighbour with a demand to pay
FIll out the small claim sheet 0 not difficult
for this case you will have to claim negligence
for this case, I think it should be something like:
Myneighbour has a duty of care towards me. I allege he was negligent in hiring low quality people to do the work for him and not checking their credentials
this caused me loss......
Ther e is a special box for this
pay �25
and wait
Good Luck - clearly I have done this quite a lof
it is VERY straightforward
and if you lose (god forbid) then all youlose is �25