Question Author
Hi Casa,
The property was built in the 1900 and is terraced so the walls are thin. As in my previous post there was a flood in November last year, some of the residents claimed through their own insurance to repair any damage caused. I hired an industrial demidifier, which helped reduce the damp dramatically. I don't think they did anything as they are retied. I am going to write to them suggesting they make a claim on their building insurance. The property is rented now so I have decided to write to them.