What Causes Condensation Damp?

Three Key Causes of Condensation Damp

Household activities increase humidity

Every home generates moisture. Activities such as cooking, showering, and drying clothes indoors release litres of water into the air daily. Without proper ventilation, moisture can’t escape. As a result, this causes damp walls, condensation on windows, and a humid indoor environment. The English Housing Survey reports that 1 in 5 UK homes experience excess indoor humidity.

Poor ventilation prevents airflow

Many homes rely on natural ventilation, such as opening windows. However, homeowners tend to keep windows shut during winter to conserve heat. Extractor fans, air vents, and mechanical ventilation are necessary to regulate airflow. Yet many properties lack these essential moisture management systems.

Insulation traps moisture inside

Yes, double glazing and loft insulation boost energy efficiency. However, without proper ventilation, they can trap moisture inside the home. This establishes the right conditions for condensation damp to form. It usually occurs on external walls, windowsills, and in cold corners of rooms.

If condensation damp isn’t treated, it can cause lasting damage to your property and health.

Get Expert Help for Condensation Damp

A professional damp survey today could save you thousands in repairs tomorrow.

Condensation damp is one of the most overlooked causes of structural damage and poor indoor air quality. Homeowners often try quick fixes like dehumidifiers. But without a professional diagnosis, the problem persists. Why risk expensive repairs later when you can prevent them today?

At Prokil, we don’t just treat the symptoms—we get to the root cause of condensation damp. Our skilled damp surveyors use advanced tools to assess your home and provide customised solutions to ensure it stays dry, mould-free, and energy-efficient for years.