I have a shower cubicle with shower boards in a bathroom that is plaster boarded. In the last few weeks there is damp at the edge of the shower cubicle on the plaster board. Initially one side but now on the other side too. I think the seal within the edge where the metal of the frame joins the wall may be failing.
What trade could look at this? Plumber? Builder?
Shower was installed 4 years ago when we had a builder do an extension. , it’s an internal room above a cellar.
