What affects the cost?
Damp treatment pricing depends on the cause and severity of the moisture problem. A survey should identify whether the issue is condensation, penetrating damp or rising damp before structural treatments are budgeted.
- Cause of damp
- Affected wall length or area
- Injection or physical damp proof course
- Basement tanking
- Removal and replacement of finishes
- Survey and drying work
Typical cost breakdown
Regional planning examples
The examples below apply our published modelling factor to the same national benchmark. They are not claimed as observed city-wide average quotes.
Sources used for this guide
Damp Proofing Costs in the UK (2026 Prices)
Published / checked: Updated April 2026
Used for: Injection damp proofing, physical damp proof course, tanking and survey costs
Frequently asked questions
How much does damp proofing cost?
A broad current UK benchmark is around £5,000 for a typical property, while injection treatments commonly sit around £1,000–£3,000.
How much is a damp survey?
Current UK guidance places a professional damp survey around £100–£600, with a midpoint around £300.
Related costs
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