How to permanently remove mold from villa closet wall?« Back to Previous Page

Our family villa in Jumeirah has these persistent dark spots coming back on the bedroom closet wall, right behind the clothes. I’ve wiped it down with bleach twice since the humidity started rising last month, but it just keeps returning a few weeks later. I'm worried it's spreading through the wall itself. What is the proper, permanent way to treat this so it doesn't ruin our things and keeps coming back?
Posted by Sophie Kaminski
Asked on April 22, 2026 8:10 pm
Recurring mold on a closet wall is a clear sign of an underlying moisture issue that surface cleaning won't fix. The dark spots returning after bleach treatment confirm the mold has penetrated the porous wall material. In Dubai's climate, this is almost always due to condensation from a nearby AC duct or a minor, hidden leak within the wall cavity.

The proper permanent solution requires a systematic approach. First, identify and stop the moisture source. For a closet, the most likely culprit is a cold air supply duct running inside the wall or ceiling space above it. The temperature difference between the chilled duct and the humid villa air causes constant condensation, soaking the wall from behind. A professional inspection with a thermal imaging camera and moisture meter is necessary to locate this exact point of condensation or any hidden leaks.

Once the source is repaired, the remediation can begin. The affected drywall or plaster is typically too compromised and must be removed and replaced. All adjacent materials should be HEPA-vacuumed and cleaned. Simply repainting or wiping will not address the root problem. For a persistent case like this, a lab test can identify the mold type, which guides the appropriate antimicrobial treatment protocol to ensure it doesn't return.

To prevent recurrence, ensure the closet has adequate air circulation. Avoid overpacking clothes against the wall and consider leaving the door ajar periodically. Using a standalone dehumidifier in the room during peak humidity months can also help maintain a dry environment.
Posted by Sani Admin
Answered on April 23, 2026 11:22 am