Damp proofing cost in the UK typically runs £500 to £4,000, depending on the type of damp and the size of the job. A single wall treatment with a chemical damp-proof course and re-plastering runs £500 to £1,200, a whole-house treatment £2,000 to £4,000, and basement or cellar waterproofing £4,000 to £14,000, since it uses […]