
Damp, Condensation & Moisture Problems Properly Diagnosed
Don’t guess. Identify the cause before treating the symptoms.

Mould in Victorian Houses London
Mould in Victorian houses in London is a common issue, particularly in properties where ventilation has been reduced or moisture levels are high. Due to the age and construction of these buildings, mould problems often develop if moisture is not properly managed.


Why Mould Forms in Victorian Properties
Victorian properties were originally designed to be breathable, allowing moisture to pass through the building fabric. However, modern changes such as sealed windows, insulation, and reduced airflow can trap moisture inside, creating the conditions for mould growth.
Signs of Mould in Victorian Houses
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Black mould forming on walls or ceilings
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Mould around windows and corners
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Musty or damp odours
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Discolouration or staining on surfaces
Mould in older properties is often treated as a surface issue, but in many cases the underlying cause is moisture build up within the building. Simply cleaning mould without addressing ventilation or moisture levels will usually result in the problem returning.
If you’re unsure whether damp proofing is required, you can read our guide on do I need damp proofing.
Understanding whether mould is caused by condensation or another form of damp is essential. You can learn more in our condensation vs damp guide.
A professional damp inspection ensures that the cause of mould is correctly identified, particularly in older properties where ventilation and traditional materials must be taken into account.
For a full assessment, visit our damp inspection London page.
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