If you’re constantly cleaning black mould from your bathroom ceiling or window frames, you’re not alone. In Leigh, bathroom mould is one of the most common moisture problems — and while extractor fans help, they rarely solve the issue on their own.
At Weather Wise Solutions, we help homeowners eliminate bathroom mould permanently using continuous ventilation systems designed to control humidity at the source.
💧 Why Bathrooms Are Prone to Mould
Bathrooms generate large amounts of warm moisture from showers and baths. This moisture settles on cold surfaces such as ceilings, tiles, and window reveals.
If the room can’t release this moisture, condensation forms, creating the perfect environment for mould spores to grow.
Typical reasons mould keeps returning include:
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Standard extractor fan only runs with the light or a timer
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No trickle vents or closed windows reducing airflow
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Poor insulation creating cold surfaces
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Lack of continuous extraction after showering
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Frequent use of fabric soft furnishings (e.g., mats, towels) that hold moisture
Without proper ventilation, mould will return — no matter how often you clean or repaint.
🌬️ Why DMEV Systems Work Better Than Standard Fans
A traditional bathroom fan works for a few minutes at a time. A DMEV (Decentralised Mechanical Extract Ventilation) unit runs continuously at a low, quiet rate, increasing airflow only when humidity levels rise.
At Weather Wise Solutions Limited, we recommend:
✅ DMEV Fans with Humidity Sensors – automatically boost extraction when moisture levels increase and reduce once the room is dry.
✅ Positive Input Ventilation (PIV) (whole-home option) – introduces filtered, fresh air to reduce humidity throughout the property.
✅ Improving insulation & airflow paths – reducing cold surfaces and enabling moisture to escape.
This combination prevents the bathroom from ever reaching the high humidity levels that allow mould spores to grow in the first place.
🧰 Professional Mould Prevention You Can Trust
As a family-run damp and ventilation company, we’re accredited members of the Federation of Damp, the Damp Proofing Association, and Checkatrade.
Our CPD-qualified specialists assess your bathroom layout, humidity levels, insulation gaps, and airflow to recommend the most effective long-term solution — not a temporary fix.
👉 Book your free bathroom mould and ventilation survey today:
https://weatherwiseuk.co.uk/pages/contact