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

Black mold in bathroom grout is extremely common in Dubai due to the high ambient humidity and condensation from showers. The landlord is generally responsible for fixing the underlying cause if it's a building defect, like faulty waterproofing, poor ventilation, or a leaking pipe. Cosmetic surface mold from daily use, however, is typically considered a tenant's maintenance responsibility.

Since the mold is spreading behind the toilet, a persistent moisture source like a slow leak from the toilet seal or a crack in the wall is likely. This moves it beyond simple surface cleaning. Document the issue with photos and formally notify your landlord or property management company in writing. Under the Dubai Rental Law, the landlord is obligated to maintain the property's structural integrity and address issues that make it unfit for habitation.

For your health and to strengthen your case, a professional inspection can identify the exact moisture source and mold type. The humidity here means surface cleaning alone is a temporary fix; the root cause must be addressed. While waiting for a response, ensure the exhaust fan is running during and for at least 30 minutes after showers and wipe down wet surfaces to manage humidity. A certified mold inspector can provide a detailed report with lab analysis, which serves as concrete evidence of the issue's severity for your landlord.