I have dry rot in my basement flat, and the contractor needs access to the flat above me to assess the extent of the problem. A date to access the flat above has already been ignored, and the landlord of the above flat is trying to contact the tenant to arrange another time. The tenant is not responding, and the landlord is not pushing it very hard.
Is there anything I can do to ensure my contractor is able to access the flat above? Without it the works will be delayed and the situation will only get worse.