Mould in the Basement – Causes, Consequences and Solutions

Q: When does mould develop and what humidity is risky?

Mould occurs at sustained humidity above 60%. Levels over 70% greatly increase the risk.

Q: How can I reduce humidity quickly?

Proper ventilation (where possible), dehumidifiers, heating in winter, and using a hygrometer. For acute damp: construction dryers or professionals.

Q: How can I keep my basement dry long-term?

Structural measures like sealing, drainage, insulation, and controlled dehumidification help reduce moisture sustainably.

Q: How can I identify mould and the associated risks?

Mould appears as spots, musty odours, or peeling paint. Risks include allergies, respiratory problems, and skin irritation.

Q: How do I remove mould effectively?

Treat small areas yourself and dispose of affected materials; hire a professional for larger infestations.

23/09/2025, 14:32

Mould in the basement is more than just an aesthetic issue – it endangers both health and the building structure. It often goes unnoticed until odours or stains appear. Find out here how mould develops, how to spot it, remove it, and prevent it in the future.

Mould in the Basement – Causes, Consequences and Solutions

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When does mould develop and what humidity is risky?

How can I reduce humidity quickly?

How can I keep my basement dry long-term?

How can I identify mould and the associated risks?

How do I remove mould effectively?