How Much Does Damp Treatment Cost?
Published: 2026-02-05 • Written by Parkside Construction
Evaluating UK damp treatment costs depends entirely on diagnostic accuracy. Contractor quotes range from £3,000 to £12,000 for aggressive chemical strip-outs and injections. Our independent surveys often find that correct remediation is far less expensive.
Average Correct Remediation Costs:
- Continuous dMEV Venting Systems: £450 - £800 fully installed per room.
- Positive Input Ventilation (PIV): £900 - £1,800 fully installed.
- Physical Gutter Repair: £120 - £500 (covers 90% of penetrating damp).
- Chemical Injections: Typically unneeded or completely counter-productive on historic lime masonry.
Why our survey pays for itself?
Our fair upfront fee starts from £450. By proving your structural issues are simple penetrating drainage or air-locking faults, we can successfully wipe out thousands of pounds of contractor-suggested structural treatments.