How much does a damp survey cost? (2026)
In the UK, damp surveys typically cost £150–£500. The price depends on the size of the property, how detailed the survey is, and the surveyor's experience (MyBuilder). Fees in London and the South East are generally higher (Checkatrade).
By property type
| Property | MyBuilder (2026) | Checkatrade (May 2024 averages) |
|---|---|---|
| Flat | £150–£200 (small flat) | about £200 (2-bed flat) |
| Terraced house | £180–£250 | about £400 (3-bed terrace) |
| Semi-detached house | £200–£300 | – |
| Detached house | £250–£350 | about £600 (4-bed detached) |
Sources: MyBuilder; Checkatrade.
By type of survey
| Survey | Typical cost |
|---|---|
| Basic survey (visual inspection plus moisture meter) | £150–£250 |
| Comprehensive survey (e.g. thermal imaging, borescope) | £200–£500 |
| Damp and timber survey (sometimes asked for by mortgage lenders) | £200–£600 |
| Follow-up visits or extra reporting | £50–£100 |
| Same-day / emergency visit | around £50 extra |
Sources: MyBuilder; Checkatrade.
What affects the price
- Number of rooms and floors to inspect
- Whether the surveyor needs to take samples or monitor over time – the Joint Position Statement says damp is often dealt with in stages, with monitoring between them (JPS 2022)
- Whether you need a written report for a lender, buyer or tenant
- The surveyor's experience – MyBuilder puts hourly rates at £50–£100 (MyBuilder)
What about "free" damp surveys?
Some damp-proofing companies offer free surveys. The Joint Position Statement expects anyone who quotes for work to report objectively, only suggest proportionate works, and declare any product or treatment that would benefit them financially (JPS 2022). See independent vs free surveys.