Is landlord responsible for black mold in rental bathroom?« Back to Previous Page

Under Dubai's rental law, the landlord is responsible for addressing structural issues that cause the mold, such as a leaking pipe inside the wall, faulty waterproofing, or a broken ventilation system. However, you are typically responsible for routine cleaning and maintenance to prevent it, especially in high-humidity areas like bathrooms.

Given your building's age and poor ventilation, this is a common issue exacerbated by our climate. The constant AC use creates a significant temperature differential with the humid outdoor air, leading to condensation that mold thrives on. Your first step is to formally notify the landlord or property management company in writing about the recurring mold, specifying it's behind the toilet and in the shower grout. This documents the request. They should assess for hidden leaks or ventilation faults.

While awaiting a response, you can manage surface mold on grout with a paste of baking soda and vinegar or a dedicated bathroom mold remover. For the wall, a diluted bleach solution (1 part bleach to 10 parts water) can be effective for non-porous surfaces. Improving airflow is critical; run the bathroom exhaust fan for at least 30 minutes after every shower and leave the door ajar. A dehumidifier can also help measurably reduce ambient moisture.

If the mold returns persistently after your cleaning or the landlord is unresponsive, the issue likely requires professional diagnosis. A moisture meter reading can identify hidden dampness in the walls, and an air or surface sample sent for lab analysis will identify the mold species, which is key for remediation. For a rental, this evidence is crucial to prove the problem is beyond surface-level and necessitates landlord action.