Professional Condensation, Mould & Ventilation Assessments Across London, Kent and East Sussex
Condensation is one of the most common moisture issues affecting UK homes yet it is also one of the most misunderstood. Left unresolved, it can lead to persistent black mould, poor indoor air quality, damage to finishes, and long‑term health concerns. Our professional condensation surveys provide clear, evidence‑based diagnosis of why condensation is occurring and what needs to be done to prevent it.
We combine building science, ventilation analysis, moisture profiling, and environmental assessment to deliver accurate, practical, and tailored recommendations for your property.
A condensation survey is a detailed investigation into the moisture behaviour, ventilation performance, and environmental conditions within a property. We assess:
- Humidity levels and moisture production
- Ventilation systems and airflow performance
- Thermal bridging and cold surfaces
- Heating patterns and building use
- Mould growth and risk areas
- Building defects contributing to moisture imbalance
The goal is simple: to identify the root cause of condensation and provide a clear, practical plan to resolve it.
Every property behaves differently — which is why a professional assessment is essential.
Many clients have tried dehumidifiers, mould sprays, or ventilation gadgets without success. Our surveys provide clarity, accuracy, and long‑term solutions.
- Black mould on walls, ceilings, or window reveals
- Water droplets on windows
- Damp or musty smells
- Peeling paint or wallpaper
- Condensation on cold surfaces
- Mould behind furniture or in corners
- Cold patches on walls
- Persistent moisture in bathrooms or kitchens
- High humidity or poor air quality
These symptoms often indicate deeper ventilation or thermal issues.
Internal Environment
- Humidity and temperature levels
- Heating patterns and thermal comfort
- Moisture production sources
- Airflow pathways and ventilation habits
Ventilation Performance
- Extractor fan airflow testing
- Kitchen and bathroom ventilation
- Trickle vents and passive vents
- Air changes and cross ventilation
Building Fabric
- Cold bridging and thermal weak points
- Insulation levels (where visible)
- Window and door performance
- External walls and exposure
Moisture & Mould Assessment
- Mould patterns and risk zones
- Moisture readings
- Surface temperatures
- Dew point analysis
Diagnostic Tools Used
- Hygrometers
- Moisture meters
- Thermal imaging (optional add on)
- Data loggers (optional add on)
- Vane anemometers for airflow testing
- Summary of findings
- Humidity and temperature analysis
- Ventilation performance results
- Thermal bridging observations
- Photographs and evidence
- Mould assessment and risk areas
- Practical recommendations for improvement
- Optional add on results (thermal imaging, data logging, ventilation testing)
Reports are written in a clean, modern, easy‑to‑understand format suitable for homeowners, landlords, agents, and contractors.
