Condensation & Mould

Condensation is one of the most common causes of damp and mould inside homes. It occurs when warm, moisture-laden air comes into contact with cold internal surfaces such as external walls, windows, or poorly insulated areas, causing moisture to form on the surface.

At AP Damp Solutions Ltd, we don’t just treat visible mould — we identify why excess moisture is being produced and why certain areas of the property are particularly cold or vulnerable.

Common causes of condensation include:

• Inadequate ventilation in kitchens, bathrooms, and bedrooms

• Lack of background airflow in modern airtight homes

• Drying clothes indoors without sufficient extraction

• Cooking and showering without effective ventilation

• Insufficient heating or rapid temperature changes within the property

• Blocked or inefficient extractor fans

• High occupancy levels increasing internal moisture

We carry out a full assessment of humidity levels, ventilation performance, and temperature conditions to understand the underlying cause of the problem.

Where cold wall surfaces are contributing to condensation, we may recommend targeted improvements such as ventilation upgrades, airflow systems like PIV units, or in some cases the use of specialist thin thermal insulation systems to help raise internal surface temperatures and reduce the risk of moisture forming.

All affected areas are assessed for mould growth and any required remedial treatment is carried out to restore internal finishes.

At AP Damp Solutions Ltd, our approach focuses on long-term moisture control improving the conditions that cause condensation in the first place, rather than repeatedly treating the symptoms