Is black bathroom grout the tenant or landlord's responsibility?« Back to Previous Page

The grout between the tiles in our Deira apartment's master bathroom has started turning black, and it's been slowly spreading for a couple of months now. The landlord is saying it's because we don't run the exhaust fan long enough after showers, but we do. With this humidity, it feels like a losing battle. Who is actually responsible for fixing this – is it on me as the tenant to clean it, or should the property owner handle the remediation?
Posted by Timothy Rodriguez
Asked on April 10, 2026 9:04 pm
In the UAE's high-humidity climate, particularly in older Deira buildings, black discoloration on grout is almost always a mold issue caused by persistent moisture. The landlord's assertion that tenant ventilation habits are the sole cause is an oversimplification. While running an exhaust fan is crucial, the responsibility for remediation hinges on the underlying cause, as per standard tenancy contracts and Dubai Law No. 26 of 2007 (Regulating Relationship between Landlords and Tenants in the Emirate of Dubai).

The landlord is responsible for the property's structural integrity and fixing issues related to inherent building defects. This includes faulty or insufficient ventilation systems, leaking pipes within the walls, poor waterproofing, or cracked grout that allows moisture penetration into the substrate. If the mold growth is due to any of these factors, the remediation cost falls on the property owner.

Your responsibility as a tenant is limited to maintaining the property and reporting issues promptly. You are expected to use the ventilation system adequately. However, if you can demonstrate consistent use of the fan and the problem persists, it strongly indicates a systemic issue beyond your control.

For a definitive answer, a professional inspection is essential. Our certified mold inspectors at Saniservice can conduct moisture mapping and air quality testing to identify the exact moisture source and type of mold. This technical report will definitively assign responsibility. Do not attempt to clean widespread growth yourself, as improper methods can aerosolize spores and exacerbate the problem. For a professional assessment and compliant remediation, please call us at 800-MOLDS (800-66537) or email hello@saniservice.com.
Posted by Sani Admin
Answered on April 13, 2026 2:11 am