Damp surveys in Stafford

What does a proper damp survey involve?

A proper damp survey starts outside, where defects such as leaking gutters or bridged damp courses show, then moves indoors. BRE Good Repair Guide 5 lists condensation, rain penetration, rising damp, leaking pipes and roofs, ground and surface water and hidden dampness among the causes, and treats identifying the cause as the first step.

Outside, we check gutters, downpipes, pointing, render, the chimney and ground levels. The Property Care Association Code of Practice says a damp-proof course is expected in buildings after 1875 and that a surveyor should check whether it has been bridged or buried. Inside, we map the dampness, look for salts and mould, and note how rooms are heated and ventilated.

That order follows the 2022 Joint Position Statement from RICS, Historic England and the PCA, which asks for a non-invasive inspection first and invasive work only where needed.

Why can a damp meter on its own give the wrong answer?

Used alone, a damp meter can point at the wrong cause. The PCA guidance on moisture meters explains that resistance and capacitance meters read on a relative scale and that salts can push readings up by themselves. It adds that a meter cannot confirm whether a new damp-proof course is working, because the salts stay in the wall either way.

BRE Digest 245 warns that salt deposits in older walls can give high readings where there is no damp problem at all. The RICS consumer guide tells homeowners to be wary of any surveyor who uses only a damp meter: meters are accurate in timber but can read falsely high in masonry and solid floors. We use one to see the pattern of moisture across a wall, then test the wall itself.

Which tests show what is really in the wall?

Samples drilled out of the masonry show how much water a wall holds and where it comes from. The PCA meter guidance describes three approaches:

• Calcium carbide testing on site, 3 to 5 minutes per sample, accurate but unable to separate ground moisture from salt-drawn moisture.
• Gravimetric testing, oven-drying samples in a laboratory: the most accurate method, able to split the two using the BRE Digest 245 technique. The PCA says gravimetric or chemical methods are needed whenever an actual moisture figure is required.
• Drilled samples taken at depth, above and below the damp-course line, sealed in airtight containers with their positions recorded.

Depth matters because, as the PCA Code notes, citing the British Standard on moisture in buildings, samples from inside a wall will not be damp if surface condensation is the only cause. Where one visit cannot settle the question, we monitor: the Code says single readings only show that conditions allowed condensation at that moment, and SPAB's technical director recommends continued monitoring. The result shows if the answer is rising damp treatment, help with condensation and mould, or neither.

Is a RICS Level 2 or Level 3 survey the same as a damp survey?

No. A RICS home survey looks at the whole house, and a specialist damp and timber investigation follows up what it finds. At all three levels the surveyor carries a damp meter, binoculars and a torch, according to RICS's descriptions of Level 1, Level 2 and Level 3. At Level 2 the surveyor does not lift carpets or floorboards or move heavy furniture. A condition rating of 3 marks a serious defect needing prompt repair, replacement or investigation, and where a problem is suspected but cannot be confirmed, the report should recommend further investigation.

Even at Level 3, the most thorough, a November 2026 RICS journal article says standard surveys typically rely on observation and electrical meters, so the surveyor may be unsure of the cause and refer it on. That follow-up is where a damp survey from Stafford Damp Proofing fits: drilled samples, a check of the timbers and a written view on cause.

What happens when a lender asks for a damp and timber report on a Stafford house?

The lender wants a specialist to say what the damp is and what it will cost, and the mortgage can depend on it. A 2025 Financial Ombudsman decision shows how much rides on it: on a buy-to-let purchase the lender required a damp and timber report, the surveyor estimated repairs at about £20,000 and gave a nil valuation, and the lender required a full retention, so the buyers would have had to fund the purchase and the repairs before money was released. The buyers' complaint about late notice of the retention was upheld.

Of 60,048 households in the borough at the 2021 Census, 23,097 lived in detached houses, 19,639 in semis and 9,835 in terraces (Area Insights, from ONS tables). The town centre has been a conservation area since 27 November 1971 (Stafford Borough Council), and the borough has 836 listed buildings. On older walls, where salts can fool a meter, a report should rest on samples.

If a report recommends work you doubt, SPAB notes that lenders may ask for damp-proofing that is not needed and suggests a written second opinion from an independent chartered surveyor rather than a contractor.

Should the company that diagnoses your damp also sell the treatment?

It can, provided it tells you, and the report keeps the diagnosis apart from the sale. The Joint Position Statement says reports should be objective, that a quoted remedy should not financially benefit the surveyor or their firm unless that is declared to the client, and that conflicts of interest should be clearly stated in the report. It is not a mandatory standard, but it sets a fair test. The RICS pathology article warns that wrong diagnosis leads to wrong remediation.

Stafford Damp Proofing does carry out damp repairs, so our reports say so. We then split the findings three ways: work we would quote for, work for another trade, and things that need nothing. Which? advises getting quotes from at least three companies and independent advice where recommendations differ. We would rather you compared.

What should you ask any damp surveyor before you book?

Ask what qualification the surveyor holds, which tests they will use beyond a meter, and whether the report will declare any commercial interest. For damp and timber, the Property Care Association's qualifications are the CSTDB, formerly CSRT, and the damp-only CSDB; the CSTDB adds a timber module that includes identifying the fungus or insect in twelve timber samples. For cellars, ask about the CSSW, the Certificated Surveyor in Structural Waterproofing. The RICS guide adds that RICS membership alone is no proof of damp expertise and suggests looking for building pathology experience.

Ask the fee up front as well. National guides vary: Checkatrade gives £100 to £600, average £300 (prices from November 2024), and MyBuilder gives £150 to £500 on an undated page. Those are yardsticks from trade platforms, not what we charge; the damp proofing cost guide sets out the rest. For anything else about damp proofing in Stafford, ring 01785 335365.

Questions we get asked

Do I need a damp survey if my home survey already mentions damp?

If the home survey recommends further investigation of damp, yes: that report stops at what a meter and a visual check can show. Have the relevant pages to hand when you ring and we will tell you what the follow-up needs to cover.

Will the survey end with a quote for damp proofing?

Only if the samples point to a problem we would fix. If the cause is a gutter, a ground level or a ventilation change, that is what the report recommends, in writing.

Can you give a second opinion on another firm's damp report?

Yes. We read the original report, test the walls it covers and tell you where we agree and where we do not. Our guide is rising damp a myth? explains why opinions differ.

What happens after the survey?

You get a written report setting out the cause, the evidence and the work, with anything we would charge for marked as ours. If the answer is condensation, the next step is on our condensation and mould page.

Where these facts come from

• Designing Buildings Wiki: BRE Good Repair Guide 5, diagnosing the causes of dampness
• Property Care Association: Code of Practice for the investigation and control of dampness in buildings (March 2017)
• RICS, Historic England and the PCA: investigation of moisture in traditional buildings, joint position statement (September 2022)
• Property Care Association: The Use of Moisture Meters to Diagnose Dampness in Buildings (July 2020)
• BRE: Rising damp in walls, diagnosis and treatment (Digest 245, 2007)
• RICS: damp and mould, a consumer guide (16 June 2025)
• Homebuilding & Renovating: how to treat damp in older houses, by SPAB's technical director (updated 8 April 2024)
• RICS: Description of the RICS Home Survey Level 1
• RICS: Description of the RICS Home Survey Level 2
• RICS: Description of the RICS Home Survey Level 3
• RICS Built Environment Journal: Understanding dampness: a pathological approach (5 Nov 2026)
• Financial Ombudsman Service: decision DRN-5762273 on a mortgage retention after a damp and timber report (2025)
• Area Insights: Stafford in the 2021 Census (ONS tables)
• Stafford Borough Council: list of conservation areas with designation dates
• Stafford Borough Council: listed buildings in the borough
• SPAB: What is rising damp?
• Which?: damp-proofing companies (page dated 5 May 2026)
• Property Care Association: the CSTDB and CSDB damp and timber qualifications
• Property Care Association: the CSSW structural waterproofing qualification
• Checkatrade: damp proofing cost breakdown (updated 6 April 2025, prices November 2024)
• MyBuilder: damp survey cost (undated)