Damp & Mould Diagnostics

Independent investigation and clear reporting to identify the cause, not just the symptoms.

Persistent damp or mould can affect both buildings and the people living or working inside them. At Nassars Surveyors, we provide independent damp and mould surveys designed to find the true cause of the problem. Whether that’s poor ventilation, hidden leaks, or external water ingress. Our approach combines technical precision with practical understanding. We don’t sell products or remediation services. Our sole focus is accurate diagnosis, clear reporting with honest advice that protects your property and your health.

Our Approach

We use a systematic, evidence based process to understand what’s happening behind the surface.

1. Initial Inspection

Assessing visible symptoms, affected materials, and environmental factors.

2. Moisture Mapping & Readings

Using calibrated instruments to measure moisture levels within walls, floors, and ceilings.

3. Building Review

Identifying sources such as defective gutters, flashings, roofs, or damp-proof courses.

4. Ventilation & Occupancy Assessment

Checking airflow, condensation patterns, and lifestyle factors that may contribute.

5. Thermal Imaging & Data Analysis (where required)

Locating cold bridges, leaks, or trapped moisture within structures.

6. Reporting & Recommendations

Providing a clear, photographic report outlining causes, implications, and next steps.

Why Professional Diagnosis Matters

Damp and mould are often treated as superficial issues. However, without identifying the underlying cause, the problem will always return. A professional, unbiased diagnosis prevents unnecessary or costly remedial works, protects property structure, improves indoor air quality, and provides defensible evidence for insurance or tenancy disputes.

We don’t guess or generalise. We diagnose accurately, so you can fix confidently.

Our Expertise

We provide damp and mould surveys for a wide range of buildings, from modern apartments to period properties and commercial premises. Our reports are trusted by property owners, housing associations, managing agents, and insurers who need reliable, professional evidence.

We can assist with:
• Rising damp investigations
• Penetrating damp and roof leaks
• Condensation and ventilation assessments
• Mould growth identification and prevention strategies
• Post-insurance or repair verification

Legal & Health Compliance

From October 2025, Awaab’s Law requires social housing landlords in England to investigate and repair serious damp and mould hazards within defined timeframes. For example, emergency hazards must be addressed within 24 hours and significant damp/mould issues within around 10 working days. Whilst the private rented sector implementation is still being phased in, this legislative change underlines the importance of independent, professional diagnosis and reporting. At Nassars Surveyors, we support freeholders, clients, landlords and managing agents in meeting their legal, health & safety obligations. As part of our service we provide evidence based reports suitable for compliance, insurance, liability or dispute avoidance purposes. To provide the confidence your property condition, or reinstatement work, aligns with current regulatory expectations.

Why Choose Nassars Surveyors

Independent & Impartial – we don’t sell treatments or repairs.
Technically Accurate – investigations led by qualified, RICS-regulated surveyors.
Comprehensive Reporting – detailed, photographic evidence with clear explanations.
Health-Focused – practical solutions to protect occupants and prevent recurrence.
Fast Turnaround – responsive service and clear communication.
Support & Guidance – we explain the issue, its causes, and the next steps in plain terms.

Our goal is to uncover the cause, explain it clearly, and help you resolve it effectively.

Digital Reporting

Every report is delivered digitally for ease of access and sharing. Clients receive:
• A professionally formatted PDF report with photographs and recommendations.
• Optional moisture data chart visuals.
• Secure digital storage for easy future reference.

Independent expertise, delivered efficiently.