Confused by a RICS survey — or just want your damp issue sorted properly?
We will tell you exactly what’s going on and what (if anything) needs doing.
No products. No treatments. Just honest answers about your home.
✔ Evidence-based damp investigation
✔ Clear explanation of the cause and next steps
✔ Practical guidance for buyers, sellers and homeowners
✖ No sales visits disguised as surveys
✖ No damp-proofing products or treatments sold
✖ No commission from contractors
Covering Worcestershire, Gloucestershire, Herefordshire and surrounding areas.
Who This Service Helps
• Home buyers where a RICS survey recommends further investigation of damp or moisture.
• Homeowners wanting to understand the real cause of damp or mould.
• Sellers who want to resolve damp concerns before marketing a property.
• Landlords needing evidence that damp or mould concerns raised by tenants are being properly investigated.
• Estate agents who want clear answers so a property sale can proceed with confidence.
Independent Damp Investigation by Us — Clear, Evidence-Based Diagnosis with No Sales Agenda
Thomas Damp Surveys provides independent damp investigations for homeowners, buyers, landlords and estate agents.
Each survey focuses on identifying the real cause of damp or mould, using moisture readings, building assessment and practical experience of how moisture behaves in buildings.
Many damp problems are misdiagnosed or over-treated, particularly when inspections are linked to selling remedial work. An independent investigation helps you understand the issue clearly before committing to repairs.
All surveys are carried out personally by Stephen Thomas, with the aim of providing clear diagnosis, practical advice, and confidence about the next steps.
Survey Report Mentioned Damp? Get Independent Clarification Before Repairs or Renegotiation
It is very common for RICS Level 2 and Level 3 surveys to highlight possible damp or elevated moisture readings.
These reports usually recommend further investigation by a damp specialist, but many inspections offered by damp companies are free because they are linked to selling remedial treatments.
An independent damp investigation provides clear, evidence-based diagnosis so buyers, sellers and estate agents can understand the real issue before agreeing repairs or renegotiating a property purchase.
This often provides the clarity needed for property transactions to move forward with confidence.
Why Choose Thomas Damp Surveys
Why Choose Thomas Damp Surveys
We provide independent damp assessment and diagnosis, using professional diagnostic equipment to identify the true cause of moisture problems.
Unlike many companies, we do not sell damp treatments or products, which means our advice is based purely on the condition of the property and the evidence observed during the inspection.
Operating across the Three Counties with regular coverage in Pembrokeshire.
⚡ SAME-DAY WRITTEN REPORTS — normally issued on the day of inspection ⚡
⚡ NO SALES AGENDA — no products to sell ⚡
✓ Independent, evidence-based damp diagnosis
✓ Clear, honest advice you can trust
✓ Plain-English explanations of what is happening and why
✓ Practical guidance before you spend money on repairs
✓ Fair and transparent survey fees
Using diagnostic equipment and practical inspection methods, we assess what is happening within the building and provide clear, impartial advice so you can make informed decisions — and avoid unnecessary or inappropriate remedial work.
Moisture Diagnosis –
Surveys from £175
Not all damp problems are the same. This one is fairly obvious but marks like these can be caused by many different things — and treating the wrong thing can be expensive.
I provide independent, paid diagnostic surveys to identify the real cause before you commit to repairs.
What’s included:
On-site diagnostic inspection
Moisture and environmental readings
Identification of the likely cause(s) of damp or mould
Clear verbal explanation in plain English
Practical next steps — including what not to do
🔍 No treatments sold
📄 Evidence-based written report with photographs included.
💷 This is a paid diagnostic survey — not a free quote
👉 Message me with photos and your postcode to check suitability before booking.
Recent Case Study – Internal Damp Investigation
🏠 The Concern
A damp issue was reported within a stairwell area.
Visible disturbance to the wall finish prompted further investigation.
📋 Findings
Moisture readings were taken across the affected wall area and surrounding surfaces.
The distribution of staining and readings did not follow the pattern normally associated with rising damp from ground level.
The disturbance appeared localised rather than uniform across the wall base.
🛠 The Diagnosis
Further investigation indicated the issue was localised moisture affecting the internal wall finish, rather than systemic rising damp.
The pattern of moisture and staining suggested a localised source rather than moisture travelling upward from ground level.
✔ The Outcome
The investigation confirmed the issue was not rising damp.
Correct diagnosis avoided unnecessary chemical damp-proofing work and ensured further investigation could focus on identifying the true source of moisture.
Independent damp surveys across Worcestershire — focused on diagnosis, not product sales.s.
🏗 Garage Roof Inspection – Water Ingress Identified
📋 Observations
Localised staining and timber discolouration were observed at the roof abutment junction. The pattern of moisture presence was concentrated at the wall-to-roof interface rather than distributed along the base of walls.
🛠 Cause Identified
The evidence indicated failure at the roof abutment detail, allowing rainwater ingress during wet conditions.
This form of moisture entry is directional and localised — not characteristic of rising damp.
✔ Recommended Action
Repair or reseal the defective abutment detail to prevent further water penetration.
Addressing the external defect resolves the internal symptom without unnecessary internal treatments.
Accurate external diagnosis avoids invasive and unnecessary damp-proofing works.
Thermal Imaging Services
Thermal Imaging Services
Thermal imaging can reveal temperature differences across building surfaces, helping to highlight areas of heat loss, cold bridging, and hidden moisture patterns that may not be visible during a standard inspection.
It can be particularly useful when investigating:
• Cold spots in walls and ceilings
• Heat loss around windows, doors, and structural junctions
• Areas where moisture may be affecting insulation or materials
• Hidden building defects contributing to condensation
Thermal imaging is most effective during colder weather conditions, when temperature differences between inside and outside are greater.
Seasonal thermal imaging surveys are typically carried out during the winter months.
Interested in thermal imaging for your property?
Get in touch to discuss whether a winter thermal survey may be useful.
How the survey process works.
1️⃣ Initial check
Send a brief description, photos and your postcode. I’ll confirm whether I’m the right person to help.
2️⃣ On-site diagnostic visit
I assess moisture, ventilation, thermal behaviour and visible building factors to identify what’s really happening.
3️⃣ Clear explanation
You’ll get an honest explanation of the cause(s) and how serious they are — without sales pressure.
4️⃣ Next steps
If work is needed, I’ll explain what to ask for and what to avoid before spending money.
If a situation requires a formal lender-grade or specialist survey, I’ll tell you upfront.
Cavity Borescope Inspection
Cavity Borescope Inspection
A cavity borescope inspection allows the internal wall cavity to be viewed using a small specialist camera. This can help identify issues that cannot be seen from the surface.
It can be useful where damp, cold spots, or insulation problems are suspected.
Typical findings may include:
• Cavity bridging from debris or mortar droppings
• Wet or saturated insulation within the cavity
• Missing or uneven cavity insulation
• Cold bridging contributing to condensation
This type of inspection can provide valuable evidence when trying to understand the cause of damp or moisture issues affecting external walls.
Concerned about possible cavity wall problems?
A quick discussion can help determine whether a cavity inspection may be useful.
Loft Insulation
Loft Insulation
Loft insulation is often insufficient, poorly laid, or disturbed over time. During damp and moisture surveys it is common to find insulation that is uneven, compressed, or missing in parts of the loft.
Poor insulation can lead to heat loss, colder rooms, and increased condensation, particularly during the winter months.
It can also block important roof ventilation if it has been pushed tightly into the eaves, allowing moisture to build up within the loft space.
What I Look For
During a damp and moisture survey I check:
• The depth and condition of insulation
• Whether it is evenly distributed
• Signs of condensation or moisture in the loft
• Whether ventilation at the eaves is blocked
The aim is simply to understand whether insulation or ventilation may be contributing to damp or condensation issues in the property.
Unsure about your loft insulation?
Book a quick call and we can discuss whether an inspection may help.
“Helping buyers,sellers and homeowners across Herefordshire, Worcestershire, Gloucestershire and Pembrokeshire.”
Contact us
Telephone: 07767 579153
E-mail: info@thomasdamp.com
Address: Stourport-on-Severn, Worcestershire
Covering the Three Counties region with scheduled work in Pembrokeshire.