Damp & Timber Investigation Surveys
At Harewood Independent Surveyors, we specialise in independent, evidence-based damp and timber investigations, carried out by Chartered Building Surveyors and Chartered Building Engineers (RICS & CABE) with specialist expertise in building pathology.
We identify the true causes of dampness and timber defects and provide clear, practical repair guidance, without any conflict of interest or the sale of treatments. Damp, mould and timber decay are among the most commonly misdiagnosed defects in UK housing, often leading to unnecessary and costly chemical interventions. Our focus is on accurate diagnosis and appropriate, building-led solutions.
Pre-Purchase Investigation Surveys
Our Pre-Purchase Damp/Damp & Timber Surveys are a specialist investigation designed to identify, quantify and evaluate any moisture-related defects or timber decay before you commit to buying a property.
By using our building-pathology expertise, we confirm:
- Whether dampness is present
- The extent and severity of the moisture issue
- The most likely causes of dampness
- Whether the issue is minor, manageable, or a potentially significant defect
- Whether the dampness is active, historic or likely to worsen
- The condition of structural timbers (joists, rafters, lintels, floors, plates)
- The urgency of any required repairs
This service is especially valuable where an initial Level 2 or Level 3 Home Survey has highlighted possible dampness or timber defects and recommends “further investigation”. We provide the detailed diagnosis these surveys cannot, ensuring you understand the true nature of the issue.
Where defects are confirmed, we provide clear, comprehensive recommendations for:
- Targeted remedial works
- Moisture-management strategies
- Improvements to ventilation or building performance
- Preventative measures to reduce future risk
Our reports are detailed, evidence-based and written in practical, plain language. They provide buyers with the clarity needed to:
- Move forward confidently, knowing exactly what is required
- Avoid unexpected repair costs after completion
- Support renegotiation of the purchase price if significant issues are identified
- Decide whether the property still represents a suitable investment
This survey offers the assurance buyers need when dampness or timber decay is a concern, giving you complete visibility of the problem, its cause, and the correct steps to resolve it.
For Owners/Managers/Professionals
Our Damp Investigation service is a comprehensive, evidence-based assessment designed for homeowners, landlords, asset managers and property professionals who require a clear diagnosis of moisture-related problems within a building.
Whether you are dealing with long-standing damp issues, new areas of mould growth, persistent leaks, unexplained moisture patterns, or suspected timber decay, we provide a thorough and reliable investigation carried out by Chartered Building Surveyors and Chartered Building Engineers (RICS & CABE) with specialist expertise in building pathology.
Comprehensive Site Inspection – A thorough investigation of the property using moisture mapping, calibrated meter readings, thermal imaging (where appropriate), mortar/plaster sampling, camera inspections, an assessment of building elements, and diagnosis of damp and timber issues in line with BRE DG245, BS 6576 and BS 7913.
Comprehensive Damp Report – A clear, evidence-based report providing diagnosis, photographs, moisture data, and sympathetic repair and moisture-management guidance tailored to the property, helping you understand exactly what is required moving forward.
Our approach aligns with key British Standards and industry guidance, including:
- BRE Digest 245 – Rising damp in walls: diagnosis & treatment
- BS 6576 – Code of practice for the diagnosis of rising damp in walls
- BS 7913 – Guide to the conservation of historic buildings (essential for traditional/solid-wall structures)
Why Choose Harewood?
- RICS & CABE Qualified Surveyors
- 100% Independent
- We are not trying to sell nonsense damp proofing treatments
- Experts in Damp, Timber Decay & Building Pathology
- We may help you avoid unnecessary repairs and treatments
- Clear, Detailed, Professional Reports
Frequently Asked Questions (FAQs)
Do I need a specialist damp survey?
General surveys identify damp but rarely diagnose the cause. A specialist survey provides accurate diagnosis and clear repair guidance.
Are you independent?
Yes, we are fully independent and not associated with any damp-proofing contractors.
Can I use your report to renegotiate a purchase?
Yes, many clients successfully renegotiate based on our findings.
Do you check for timber decay and woodworm?
Yes, if instructed, we assess for wet rot, dry rot and all common wood-boring beetles.
How long does the inspection take?
Typically 1–4 hours depending on complexity.
Do you recommend contractors?
We do not recommend or endorse specific contractors, but we can advise you on what to look for in a suitable contractor and guide you in the right direction to help ensure the work is carried out properly and in line with best practice.
Will the walls need chemical DPC injection?
No. We have surveyed thousands of damp properties and have never found a situation where this would be beneficial.
Do we provide costs?
No, we do not provide costings. However, our report includes clear, detailed recommendations so you can confidently approach contractors to obtain accurate prices for the required work.