Friday, 11 September 2026. A tenant reports black mould around a bedroom window. The landlord arranges for it to be cleaned and repainted. Several weeks later, it comes back.
At that point, the problem is no longer the appearance of the wall.
Something is causing it.
Damp and mould disputes can become difficult because there may be disagreement over whether the cause is the building, a leak, inadequate ventilation, heating patterns or a combination of factors. Treating every case as either entirely the landlord's fault or entirely the tenant's fault can prevent the actual problem from being identified.
Damp is not one single problem
Condensation is probably the form most familiar to residents. Moisture produced inside a home can condense on colder surfaces, particularly where ventilation, heating and insulation are poor.
But mould can also be associated with water penetration, leaking plumbing, roof or gutter defects and other building problems.
That is why repeatedly painting over visible mould is not a meaningful long-term repair if the underlying source remains.
A proper response starts by identifying what is happening.
Why landlords should investigate rather than assume
A landlord may receive photographs showing mould and immediately conclude that the tenant is not ventilating the room properly.
That conclusion may be wrong.
Similarly, a tenant may see mould and immediately conclude that the entire building has structural damp.
That may also be wrong.
Inspection provides context. Are there signs of a leak? Is the extractor fan working? Are windows functioning correctly? Is there evidence of water penetration? Is the room unusually cold? Is mould concentrated around a thermal bridge or spread across a larger area?
Professional assessment may be necessary where the cause is not obvious.
The regulatory direction is becoming stricter
Housing conditions are receiving increasing regulatory attention under the Renters' Rights reforms, including plans to extend Awaab's Law-style requirements into the private rented sector.
That makes it increasingly difficult to justify a maintenance culture based on waiting for serious deterioration before acting.
The wider principle is straightforward: hazards affecting a rented home need to be taken seriously, properly investigated and addressed through the applicable legal framework.
Tenants have an important role as well
Tenants should report damp, leaks and mould early.
A small patch beside a window is easier to investigate than a problem that has been developing unnoticed behind furniture for months.
Photographs can help demonstrate how the issue develops over time. Tenants should also provide reasonable access for inspection and repair when appropriate arrangements have been made.
Normal activities such as cooking, showering and drying clothes naturally introduce moisture into a home. Using available ventilation and heating appropriately can therefore form part of managing condensation.
But lifestyle advice should not become a substitute for repairing an actual building defect.
If the bathroom extractor fan has stopped working, telling somebody to “ventilate more” does not repair it.
Why good maintenance records matter
For landlords and property managers, every report should create a clear maintenance trail.
The date of the complaint, photographs, inspection findings, contractor recommendations, works completed and follow-up communication should be recorded.
That protects more than the property.
It makes it possible to see whether a recurring problem has genuinely been resolved.
The objective should never be simply to make the wall white again.
It should be to understand why it stopped being white in the first place.
DISCLAIMER- THIS PHOTO HAS BEEN TAKEN FROM PINTEREST (SAPNA K GUPTA)0