Hi, we have some damp, quite badly coming down from the chimney stack, after being cheaked by 2 brickies both said the stack does need rebuilding and 90% of the damp is caused by the half of the stack from next door. After speaking to next door she said "oh i dont know about having it done, i dont really like paying" we just spent £2500 on having the entire house decorated (didnt know about damp till 2 months later) and dont want it ruined by damp coming down the wall because she next door wont have it fixed. Is the something that can be done to sort of force her next door to have it fixed? since she doesnt have a valid reason not to have it done, just donest want to pay. any advise welcome. thanks.