Visible Black or Green Mould
Dark patches on walls, ceilings, or around windows. Often starts small but spreads rapidly if left untreated.
- Black mould (Stachybotrys) is particularly dangerous
- Often appears in corners, behind furniture, or in bathrooms
- May have a musty, damp smell
- Can spread rapidly through spores in the air
Condensation on Windows
Excessive moisture on windows, especially in the morning. Indicates poor ventilation and high humidity levels.
- Water pooling on window sills
- Visible water droplets on glass daily
- Can lead to mould growth on window frames
- Often worse in bedrooms and bathrooms
Peeling or Bubbling Paint
Paint that's bubbling, cracking, or peeling away from walls indicates moisture penetrating the surface.
- Paint may feel soft or spongy to touch
- Wallpaper may bubble or peel at edges
- Often a sign of penetrating or rising damp
- Indicates ongoing moisture problem behind the surface
Musty or Damp Smell
A persistent musty, earthy smell that doesn't go away. This is often the first sign of hidden mould.
- Smell may be stronger in certain rooms
- Often noticeable when entering the property
- Can indicate mould behind walls or under floors
- May worsen in humid weather
Cold Spots and Damp Patches
Areas of walls that feel cold or damp to touch, often with visible discolouration.
- Cold walls can cause condensation
- May indicate poor insulation or thermal bridging
- Damp patches may feel wet or cold
- Often found on external walls
Increased Pests
Silverfish, woodlice, and other moisture-loving insects are attracted to damp environments.
- Silverfish are common in damp bathrooms
- Woodlice indicate high moisture levels
- May also attract mice looking for water
- Pest presence confirms damp problem
Health Symptoms
Unexplained respiratory issues, allergies, or worsening asthma can be caused by mould exposure.
- Persistent coughing or wheezing
- Allergic reactions (sneezing, itchy eyes)
- Worsening asthma symptoms
- Symptoms improve when away from home
What To Do If You Spot These Signs
Document everything
Take photos and videos with dates. Keep a log of when issues appeared.
Report to your landlord
Put it in writing (email or letter). Keep copies of all correspondence.
See your doctor
If experiencing health symptoms, get medical attention and keep records.
Contact us
Get a free assessment of your case. We can help enforce repairs and claim compensation.
Spotted These Warning Signs?
Don't wait for your health to suffer. Get a free assessment of your situation and find out how we can help force repairs and claim compensation.
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