Diagnosis summary
Severity
Moderate
Priority score
0 / 100
Likely causes ranked
Action plan
When to seek a professional survey
Methodology
How the humidity diagnosis is prioritised
The tool distinguishes between moisture generation, ventilation weakness, and possible building-fabric defects. High occupancy, indoor clothes drying, unvented tumble drying, and weak extractors increase internal moisture load. Symptoms such as mould, musty smells, damp patches, and peeling finishes raise the urgency score.
A winter-only pattern usually points more strongly toward condensation and cold surfaces, while all-year symptoms increase the chance that leakage, penetrating damp, or persistent ventilation failures also need investigating. Suggested actions are split into immediate, short-term, and longer-term steps with rough UK cost bands and practical impact ratings.
Products worth considering
Based on your results, these product categories may be relevant to your next step.
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