m (interior wall) m (exterior wall with estimate of where the damp patch is coming from) Hi All A damp patch has appeared in the middle of my wall (no issues ceiling or floor) as you can see in the photo above. The patch is at where my wall joins with my neighbours. Any ideas on what the issue could...
Anyone know where to start with this? The damp patch starts in the middle between the ceiling and the floor. I'm in a 3rd floor victorian flat. What tradesman am I best calling for help? (I'm not a DIYer)
