Are we liable for AC mold in our Dubai apartment?« Back to Previous Page

The AC vent in our master bedroom in Jumeirah has been blowing out a really musty smell for the last couple of months, and now I can see black spots spreading on the wall around it. My landlord is saying it's our fault for not keeping the humidity low enough, but we run the AC constantly. Are we legally responsible for getting this cleaned, or is this the building's maintenance issue?
Posted by Shweta Iyer
Asked on April 8, 2026 11:30 am
Based on the symptoms you've described—a persistent musty odor followed by visible black spots around the AC vent—this is a classic case of microbial growth within the AC system and on the surrounding building materials. This is a serious health and safety concern that requires immediate attention.

In the UAE's high-humidity climate, mold in AC systems is predominantly caused by condensation issues, often due to improper insulation of the ductwork, clogged drain pans, or a malfunctioning AC unit itself, not simply from occupant use. Even running the AC constantly can exacerbate the problem if the unit is not correctly sized or maintained, as it can lead to excessive condensation that the system cannot properly evacuate. The responsibility for remediation hinges on the source of the moisture.

Legally, according to standard tenancy contracts and Dubai rental law (Law No. 26 of 2007), the landlord is typically responsible for the maintenance of the property's structural components and essential services, which includes the central AC system and the building's ventilation infrastructure. If the mold growth is a result of a faulty AC unit, leaking ductwork, or poor building envelope design (e.g., inadequate insulation leading to condensation inside the walls), the financial responsibility for inspection and remediation falls on the landlord.

However, liability can shift to the tenant only if it is proven the growth was caused by negligence, such as a failure to report a water leak in a timely manner or intentionally blocking ventilation. Merely "not keeping humidity low enough" is an insufficient argument from your landlord, as the primary function of the AC in Dubai is to manage indoor climate and humidity.

We strongly recommend you do not attempt to clean this yourself, as improper handling can aerosolize toxic spores. You need a professional inspection to definitively identify the moisture source and the mold species. This certified report is crucial evidence for discussing liability with your landlord.

For a definitive assessment and to protect your health, contact our specialists at Saniservice. Call 800-MOLDS (800-66537) or email hello@saniservice.com for a comprehensive inspection and a detailed report that can be presented to your landlord.
Posted by Sani Admin
Answered on April 9, 2026 5:28 pm