Hi, we have damp in most of downstairs and after eliminating other  causes think it is due to the concrete paths around the house being built too high against the house and also being cracked. We basically need the grounds dug up, dug deeper and re-done and with sufficient drainage solutions put in place. However we don't know who to contact to do this, whether it would be a builder or a paving specialist or groundsworker or someone else etc etc