UK damp proofing calculator
Damp Proofing Cost Calculator
Compare common damp proofing treatments using current UK benchmarks, optional survey costs and postcode-aware regional modelling.
Enter a postcode to set the cost region automatically.
Estimated damp treatment budget
£1,088 – £3,564Typical planning estimate £2,276. Removing and replacing finishes, drying, decoration and unrelated remedial work are not included.
Benchmark source: Checkatrade 2026 damp proofing cost guide. Correct diagnosis should come before treatment; this tool is for budgeting, not diagnosing the cause of damp. See sources →