Professional Wet Rot Investigation & Timber Decay Assessment Across London, Kent and East Sussex
Wet rot is one of the most common forms of timber decay found in UK properties. Although less aggressive than dry rot, it can still cause significant structural deterioration if left unresolved. Wet rot is always a sign of excess moisture, and identifying the source of that moisture is essential for long‑term protection.
At Damp Solve Surveying, we provide qualified wet rot surveys that deliver accurate diagnosis, clear reporting, and practical recommendations. Our investigations are trusted by homeowners, landlords, agents, and property professionals.
Wet rot is a group of fungi that attack timber with elevated moisture content, typically above 20–30%. Unlike dry rot, wet rot does not spread through masonry or travel long distances but it can still cause:
- Loss of structural strength
- Crumbling or softened timber
- Localised decay in floors, joists, and joinery
- Long term deterioration if moisture remains present
Wet rot is a symptom of a moisture problem, not the cause. Correct diagnosis requires understanding both the fungus and the conditions enabling it.
Identifying the moisture source is essential treating the timber alone will not prevent recurrence.
Many clients discover wet rot only after noticing soft floors or damp smells. Our surveys provide clarity, accuracy, and confidence.
- Soft, spongy, or crumbling timber
- Darkened or discoloured wood
- Localised decay in floors or skirting boards
- Peeling paint or blistering finishes
- Musty or damp odours
- Damp patches on walls or floors
- Visible fungal growth (usually black or brown)
- Springy or uneven floorboards
- Persistent dampness in sub floor areas
Wet rot often develops in concealed areas so early diagnosis prevents further damage.
Timber Condition
- Floor joists, wall plates, and structural timbers
- Skirting boards, architraves, and joinery
- Roof timbers (where accessible)
- Timber moisture content and decay patterns
Moisture Sources
- Leaks, plumbing defects, and water ingress
- Sub floor ventilation performance
- Damp proof course bridging
- External defects (pointing, gutters, ground levels)
- Condensation and humidity issues
Environmental Conditions
- Humidity and temperature
- Airflow pathways
- Thermal bridging and cold spots
Diagnostic Tools Used
- Hygrometers
- Moisture meters
- Borescopes (where required)
- Thermal imaging (optional add on)
- Data logging (optional add on)
- Ventilation testing (optional add on)
- Summary of findings
- Fungal identification and decay assessment
- Moisture readings and analysis
- Photographs and evidence
- Structural risk assessment
- Practical recommendations for repair
- Guidance on moisture control and ventilation
- Optional add on results (thermal imaging, data logging, ventilation testing)
Reports are written in a clean, modern, easy‑to‑understand format suitable for contractors, insurers, and property professionals.
