She moved in some 6 months ago with a retention on the mortgage over damp in the walls of the house (a rather old property). The house at the time had been vacant for a number of years
Since moving in the feeling of dampness in the house has diminished, particularly over winter as the heating kicked in, and I presume as there was an amount of air flow in the now inhabited house.
There's one area outside the front of the house, north facing, where the soil border has been raised higher than the DP layer, against the brickwork. Obvious solution here is to dig that away to remove any cause of dampness from the soil, but until she gets the dampness diagnosed she wants to leave that in place so that whoever inspects the property can / could say "aha, that's the problem, remove that and in 6 months the damp will disappear".
She wants to establish whether there is truely a problem with damp in the property. Funnily enough, she's somewhat concerned that, e.g. a damp-proofing company, would have it in their mind to shove a damp meter into the wall next to the DP layer breach and demand to solve the whole problem by DP injection into the whole house, whether it is needed or not.
So to the question: What body of people would be the most appropriate to diagnose dampness problems, other than those with a product to sell. Are we talking surveyors, any form of professional engineer (not civil engineer, as I understand those to be involved in public works, but something similar?) or any other professional body?
Thanks, in advance