How much does a damp survey cost?
A damp survey typically costs £150 to £450 for a survey and report, not treatment. The typical price is about £250.
£150 to £450
For a survey and report, not treatment · typically about £250
Prices are typical UK ranges drawn from firms’ published prices and cost guides, last checked 6 October 2026. They are a guide only: every firm sets its own prices, so get quotes for your own project. Some firms quote before VAT and some include it, so ask which a quote is.
Example prices
| Job | Typical price |
|---|---|
| Basic visual damp survey, flat or small terrace | £150 to £250 |
| Independent damp and timber report, 3-bed semi | £200 to £350 |
| Comprehensive survey with thermal imaging, detached house | £300 to £500 |
What changes the price
- Property size and number of affected rooms
- Survey depth (visual plus moisture meter vs thermal imaging, borescope, salt analysis)
- Independent/chartered surveyor vs contractor survey
- Written report vs verbal quote
- Location (London and South East 25-35% higher)
- Follow-up visits or monitoring
The survey is not the treatment
The range above is for an independent survey and report. Treatment is a separate cost and depends entirely on the cause: published guides put injected damp-proofing for a single wall at roughly £350 to £1,000, and for a whole three-bed semi at £1,500 to £3,500. Fixing a leak or gutters is often far cheaper.
How to get a fair quote
- Be cautious of a “free” survey from a company that also sells treatment. An independent surveyor has no reason to recommend work.
- Get the cause diagnosed first. Many damp problems are caused by leaks, condensation or blocked gutters, and do not need injected treatment.
- Get at least three quotes for the same job, and compare what each includes as well as the total.
- Check the provider’s accreditation. See how we check listings.
Common questions
How much does a damp survey cost?
A damp survey typically costs £150 to £450 for a survey and report, not treatment. The typical price is about £250. Some firms quote before VAT and some include it, so ask which a quote is.
Why do quotes vary so much?
The main things are: property size and number of affected rooms; survey depth (visual plus moisture meter vs thermal imaging, borescope, salt analysis); independent/chartered surveyor vs contractor survey; written report vs verbal quote.
Does the price include VAT?
Some firms quote before VAT and some include it, so ask which a quote is. Always check before you accept.
How do I get a fair price for damp and timber survey?
Get at least three quotes for the same job, and compare what each includes as well as the total. Check the provider’s accreditation and ask for a fixed price where you can.
Where these prices come from
Researched in October 2026 from the sources below, which we compared against each other. Where sources disagreed we used the range that covered most quotes. These sites are independent of us.
- MyBuilder - Damp survey cost
- Less.co.uk - Damp proofing cost (updated Apr 2026)
- UK Calculator - Damp survey cost calculator (Jul 2026)
- Book a Builder - House surveyor cost 2026
Read next: what damp and timber survey is and when you need it.