Should I report musty AC and black mold to landlord urgently?« Back to Previous Page

Yes, you should report this to your landlord promptly. The combination of a musty smell from the AC and visible mould on an exterior wall indicates two separate but likely related moisture issues that require attention.

The damp, earthy smell from your AC unit strongly suggests microbial growth within the system, often on the cooling coils or in the drip pan. The black spots in the closet, especially on an exterior wall, are a classic sign of condensation mould. This is extremely common in JBR and other coastal areas of Dubai, where the high outdoor humidity meets cold air-conditioned walls, causing water to condense and create a perfect environment for mould.

While not necessarily a midnight emergency, this shouldn't wait for long. Mould colonies can spread quickly in our humid climate. Document everything now: take clear photos and videos of the mould patch and note the date. Send this evidence to your landlord or property management company in writing (email is best) to create a formal record of the notification.

Your landlord is generally responsible for investigating and remedying the source of the moisture, which is a building integrity issue. This includes servicing the AC unit to eliminate the internal growth and addressing the wall condensation, potentially by improving insulation or ventilation. You can expect them to arrange for a professional inspection to assess the full extent. For your safety, avoid disturbing the mould patch and ensure the area is well-ventilated until it is addressed.