Independent Specialists in Damp, Mould & Waterproofing Investigation
Providing accurate diagnostics, independent reporting, and clear remediation guidance for homeowners, landlords, housing providers, and developers across London, the Home Counties and the Midlands.
Rated Excellent
See how homeowners, buyers and landlords describe the clarity of our surveys and remedial guidance.
"Rob took time to explain the leak damage properly, guided us through every step and produced a thorough report that made the next move much clearer."
Joe
AL1
"Our older property had been troubled by damp for years. Rob responded quickly, visited within days and delivered a detailed report the next day."
Denise T
AL1
"The survey was outstanding from start to finish. Rob explained the process clearly, used thermal imaging and set out the root cause with practical next steps."
Saf N
LU1
"The survey on our house was incredibly thorough and professional. The report showed real expertise, and Rob even took time to explain the thermal images to my son."
Amy P
LU7
"The pre-purchase damp survey was invaluable. Rob arranged the visit quickly, kept me updated and delivered a solution-focused report that made the decision easier."
Antonio A
LU4
"We were really pleased with the service. The report was incredibly detailed and comprehensive, and it gave us exactly the clarity we needed."
Jesse D
LU6
"Communication through Checkatrade was quick, the survey was booked in fast and the detailed report arrived the same evening."
Yousuf M
LU1
"Rob arrived exactly when promised and gave a thorough assessment of what we needed to consider. Very knowledgeable and would definitely use again."
Jason
LU5
"The communication was excellent and the survey explained complex heritage-property issues in a way that was easy to understand, with a clear focus on solutions."
Steve S
MK17
"Rob took time to explain the leak damage properly, guided us through every step and produced a thorough report that made the next move much clearer."
Joe
AL1
"Our older property had been troubled by damp for years. Rob responded quickly, visited within days and delivered a detailed report the next day."
Denise T
AL1
"The survey was outstanding from start to finish. Rob explained the process clearly, used thermal imaging and set out the root cause with practical next steps."
Saf N
LU1
"The survey on our house was incredibly thorough and professional. The report showed real expertise, and Rob even took time to explain the thermal images to my son."
Amy P
LU7
"The pre-purchase damp survey was invaluable. Rob arranged the visit quickly, kept me updated and delivered a solution-focused report that made the decision easier."
Antonio A
LU4
"We were really pleased with the service. The report was incredibly detailed and comprehensive, and it gave us exactly the clarity we needed."
Jesse D
LU6
"Communication through Checkatrade was quick, the survey was booked in fast and the detailed report arrived the same evening."
Yousuf M
LU1
"Rob arrived exactly when promised and gave a thorough assessment of what we needed to consider. Very knowledgeable and would definitely use again."
Jason
LU5
"The communication was excellent and the survey explained complex heritage-property issues in a way that was easy to understand, with a clear focus on solutions."
Steve S
MK17
Why Choose True Damp
We're an independent consultancy providing accurate damp, mould, and waterproofing investigations — not sales-driven quotes.
Our PCA-trained surveyors deliver detailed diagnostics and evidence-based reporting to uncover the true cause of moisture issues across residential, commercial, and complex properties.
Our surveys include:
- Salt testing, thermal imaging, and air quality analysis.
- Invasive and non-invasive surveys — internal and external.
- Awaab's Law–compliant reporting for residential cases.
- COSHH-aligned assessments for commercial premises.
- Second opinions and complex case support.
- Pre-sale and pre-purchase surveys for homeowners and buyers.
- Remediation planning with clear, practical recommendations.
Independence, Clarity, Accuracy
We help homeowners, housing associations, and managing agents make informed decisions based on evidence — not commission.
Many clients come to us after receiving generic, one-size-fits-all reports or sales-driven advice that failed to resolve the real cause of moisture problems.
Investigate, Don't Sell
We don't sell chemical injections, membranes, or quick fixes. We investigate, analyse, and report — giving you confidence and a clear plan built on facts.
British Standards Aligned
Our surveys are built around BS 6576, BS 5250, BS 8102 and PCA investigative methodology, ensuring every recommendation is technically correct.
Trusted Remediation Partners
When works are required, we guide you toward proven, accredited specialists using systems from Newton Waterproofing, Delta Membranes, Safeguard Europe and Wykamol.
Clear, Actionable Reports
Every report includes clear diagnostics, example cost guidance, and repair method recommendations — so you know what's necessary and what's right for your property.
Our independence isn't about distance — it's about integrity. Whether you're a homeowner, landlord, developer, or housing association, we help you make informed decisions based on evidence — not persuasion.
Our core investigation services
Explore how we support homeowners, landlords, housing providers, developers, and commercial teams with evidence-led surveys and reporting.
Independent Damp & Mould Surveys
Independent reporting for homeowners, buyers, landlords and property teams who need clarity before committing to works in Hertfordshire.
Moisture Diagnostics & Building Pathology
Rising damp, penetrating damp, condensation and hidden moisture analysis built around evidence rather than assumptions.
Mould Remediation & Condensation Control
Diagnosis-led support for black mould, poor ventilation, humidity imbalance and long-term condensation issues.
Basement & Below-Ground Waterproofing
Specialist waterproofing investigations and BS 8102-aligned guidance for cellars, basements and below-ground structures.
External Defects & Drainage Investigations
Roofing junctions, rainwater goods, masonry defects, drainage faults and other external sources of moisture ingress.
Remedial Specifications & Project Support
Clear remedial scopes, cost guidance, contractor coordination and practical next-step planning once the cause is understood.
Need clarity on a property issue rather than a generic damp quote?
Examples of the work and reasoning behind it
in Hertfordshire
Selected project frames around surveys, mould, waterproofing and defect-led investigation across Hertfordshire.
Independent damp survey for a repeated mould complaint
A diagnosis-led review of recurring mould where previous advice had focused on treatment rather than cause.
Condensation and ventilation review in an occupied home
Assessment of humidity, ventilation and building context to separate lifestyle assumptions from actual building performance issues.
Below-ground waterproofing assessment
Specialist review of basement moisture risk and likely waterproofing strategy with BS 8102 thinking in view.
External defect and rainwater investigation
Defect-led assessment of masonry junctions, rainwater goods and likely external ingress pathways.
Second opinion after failed treatment
A re-evaluation of a property where prior damp treatment had not addressed the true moisture mechanism.
Remedial specification and scope planning
Clear scope and next-step planning designed to help the client instruct the right works with less guesswork.
Need a clearer answer, not a generic quote?
Talk through the symptoms, the property and any previous advice, and we can help you choose the right next step in Hertfordshire.
Watford, London and the Home Counties
Core coverage is focused on Watford, London, Buckinghamshire, Hertfordshire, Bedfordshire and Oxfordshire, with availability for specialist projects beyond the primary region where appropriate.
Specialist Coverage
Watford base · London & Home Counties focus
Watford, St Albans, Hemel Hempstead
Hertfordshire & Watford
Central London and surrounding boroughs
London
High Wycombe, Aylesbury, Luton, Bedford
Buckinghamshire & Bedfordshire
Oxford and surrounding areas
Oxfordshire
Not sure if your property falls within scope?
Get in touch with the postcode, property type and the issue you are dealing with, and we can advise on the best next step.
What clients value most in Hertfordshire
The strongest praise usually comes down to quick response, clear explanations, detailed reports and practical advice that helps people move forward.
Public review profile
"Rob took time to explain the leak damage properly, guided us through every step and produced a thorough report that made the next move much clearer."
Joe
Verified Customer in AL1
"Our older property had been troubled by damp for years. Rob responded quickly, visited within days and delivered a detailed report the next day."
Denise T
Verified Customer in AL1
"The survey was outstanding from start to finish. Rob explained the process clearly, used thermal imaging and set out the root cause with practical next steps."
Saf N
Verified Customer in LU1
"The survey on our house was incredibly thorough and professional. The report showed real expertise, and Rob even took time to explain the thermal images to my son."
Amy P
Verified Customer in LU7
"The pre-purchase damp survey was invaluable. Rob arranged the visit quickly, kept me updated and delivered a solution-focused report that made the decision easier."
Antonio A
Verified Customer in LU4
"We were really pleased with the service. The report was incredibly detailed and comprehensive, and it gave us exactly the clarity we needed."
Jesse D
Verified Customer in LU6
Common Questions
Got questions? We've got answers. Here are the most common things our customers ask.
Still have questions?
Need clarity before you spend money in Hertfordshire?
Speak to a specialist
If you are dealing with damp, mould, repeated moisture issues or conflicting previous advice, we can help you understand what is really happening and what the right next step looks like.
Request specialist advice
Tell us about the issue and we will point you in the right direction.
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