Here is a question to the blog clinic from Samuel (not his real name) who is a home owner:
The House next to my house is a rented terraced property, The roof wall which is lower than my house and joins to the wall of my house, has broken loose flashing, causing my inner wall to be damp and heavy rain can cause water to come through the wall. house. A local tradesman plumber confirms this.
We have contacted the owner of the next door property, he came to see it, but hasn’t made any effort to repair this flashing. As I am disabled aged 87, I am at a loss what I can do to make him do the repair.
If he refuses to do the work voluntarily probably the only thing to do is to bring a claim against him. This is not really landlord and tenant law. However if the problem is causing damage to your property you may have a claim.
Have you spoken to your insurers? They may be willing to help you. If not you may find a solicitor willing to act on a no win no fee basis.