How to clean closet mold and fix damp issue in rental?« Back to Previous Page

Our bedroom closet on the outside wall has been smelling damp for the last couple of months, and I’ve just found a patch of black, fuzzy mold in the corner behind our shoe rack. It’s a rental apartment in an older building in Bur Dubai, and I’m worried the issue is with the building’s insulation since that wall gets the afternoon sun. What’s the best way to clean this safely and who should I contact—my landlord or building management—to make sure the root cause like a potential leak is actually fixed?
Posted by Hannah Martin
Asked on March 20, 2026 9:23 am
Based on your description of a persistent damp smell and visible black mold on an exterior wall in Bur Dubai, this is a serious indoor air quality concern that requires immediate and correct action. The climate here, with its high humidity and constant air conditioning use, creates a perfect environment for mold, especially on exterior walls where thermal bridging can cause significant condensation.

Do not attempt to clean this yourself with bleach or other retail products. Disturbing the mold without proper containment can aerosolize harmful spores throughout your bedroom. The black, fuzzy appearance suggests a potentially toxigenic species, which necessitates professional handling. Your initial step is to document the issue with clear photographs and immediately contact your landlord in writing, as per the Dubai Rental Law, which holds the property owner responsible for maintaining the structural integrity of the unit, including resolving moisture ingress and mold problems stemming from building defects.

The root cause you suspect—insulation failure or a hidden leak in the wall—is highly probable. A superficial cleaning will be completely ineffective if the moisture source isn't identified and rectified. This requires a professional inspection with tools like thermal imaging and moisture meters to pinpoint the exact cause, whether it's a leaking pipe, capillary rise, or condensation due to the temperature differential from the afternoon sun.

For a definitive solution, I strongly recommend a certified mold inspection and remediation company. They will safely contain the area, remove the contaminated materials, employ HEPA filtration to clean the air, and apply professional-grade antimicrobial solutions. Most importantly, they can provide a detailed report for your landlord that diagnoses the root cause and outlines the necessary repairs.

For immediate assistance with inspection and safe remediation, contact our specialists at Saniservice. Call 800-MOLDS (800-66537) or email hello@saniservice.com to schedule a comprehensive assessment and ensure the problem is resolved permanently.
Posted by Sani Admin
Answered on March 21, 2026 8:09 pm