Who is responsible for mold from AC vent in Dubai?« Back to Previous Page

Responsibility hinges on whether the mold is due to tenant lifestyle or a building defect. Dubai's high humidity and constant AC use create condensation, but a leak from upstairs or a faulty AC drain line is a structural issue.

Your tenancy contract is the primary reference. Most standard contracts place responsibility for minor interior maintenance on the tenant. However, if the mold originates from a hidden building defect—like a leak in the concrete slab above, a faulty AC condensate drain pipe, or poor external waterproofing—the landlord is typically responsible for the structural repair. The pattern you describe, spreading from the ceiling near the vent, strongly suggests an underlying moisture source beyond simple humidity.

Legally, you must formally notify the landlord in writing (email is best) with clear photos, detailing the issue and your suspicion of a structural leak. Request a professional inspection to determine the root cause. Do not attempt remediation yourself, as painting over it will not solve the leak and the mold will return. A proper inspection involves moisture meters and thermal imaging to trace the water path.

If the landlord refuses, you can file a case with the Dubai Rental Dispute Center (RDC). They will often order an independent expert report to determine liability. For your health, address this promptly; the spores from that growth are now circulating through your AC system.