I would like to recommend Dave Reilly, a local damp proof expert I found via EDF. He was 100% reliable, efficient, competitively priced, very clear and helpful, came exactly when he said he would, did exactly the work he had quoted for, showing us progress at key stages, and then left everything completely clean and tidy as if he'd never been. He also offered helpful advice about another job and some products. His number is 07932 505589.