Who is responsible for black mold by the AC vent?« Back to Previous Page

Based on UAE tenancy law, specifically Law No. 26 of 2007, the responsibility for maintenance falls on the property owner or landlord. This includes issues related to the building's core systems, such as the central air conditioning and its associated ductwork. Since the mold is appearing at the ceiling vent—a direct part of the AC distribution system—this is almost certainly the landlord's responsibility to address.

The fact that the AC is struggling and running constantly is a major red flag. This indicates a potential issue with the chiller unit itself, the air handling system, or a severe lack of insulation in the ductwork, all of which are causing excessive condensation. This condensation is the moisture source feeding the mold growth you see. A small patch is a warning sign of a larger, hidden problem within the ducts or the ceiling void.

You should formally notify your landlord or property management company in writing immediately. I strongly recommend you insist on a professional mold inspection. DIY cleaning is ineffective for systemic issues and can disturb spores, worsening air quality. Our certified technicians use thermal imaging and borescopes to inspect inside the ducts and identify the root moisture cause, not just the visible symptom.

For a proper assessment and to get this resolved correctly, call our experts at 800-MOLDS or email hello@saniservice.com. We can provide a detailed report for your landlord, outlining the cause and the necessary remediation protocol.