How to permanently remove and prevent black mold?« Back to Previous Page

My kids have been coughing more than usual and I finally checked behind the wardrobe in our master bedroom. I found a patch of black mold on the wall, which must have been there for a while. We live in an older building in Jumeirah and I'm worried the humidity is just getting trapped there. What's the most effective way to not only clean this but to stop it from coming back for good?
Posted by Lin Nakamura
Asked on April 4, 2026 3:46 am
The patch of black mold you've discovered is a serious concern, particularly given the health symptoms and the high-humidity environment of Dubai. Permanent removal is a two-step process: remediation of the existing growth and correction of the moisture source.

For the immediate patch, do not attempt to clean it with bleach. This can aggravate spores and does not address the root cause. The most effective DIY method for a small area (less than 1 square meter) is to use a dedicated EPA-approved fungicide, followed by a HEPA vacuuming of the surface and area. However, given its location behind furniture and the associated health issues, a professional inspection is strongly advised. Mold colonies have a non-visible root structure (hyphae) deep within the wall matrix that amateur cleaning will miss, leading to rapid regrowth.

The critical step is moisture control. In Jumeirah's older buildings, this is typically caused by a combination of factors: condensation from poorly insulated exterior walls meeting the cold from year-round AC, and a lack of airflow behind large furniture. To prevent recurrence, you must permanently lower the relative humidity at that wall surface. Move the wardrobe at least 5 inches from the wall to allow for air circulation. Consider installing a dehumidifier in the room, especially during the more humid winter months. Check that your AC unit is correctly sized and functioning, as proper air conditioning is the primary dehumidification tool in the UAE.

For a definitive solution, I recommend a professional assessment. We at Saniservice conduct comprehensive inspections using moisture meters and thermal imaging cameras to identify the exact condensation points and hidden moisture within the wall cavity, which is often the true source. Our remediation protocols follow IICRC S520 standards and involve containment, HEPA filtration, and antimicrobial treatments to ensure complete removal and prevent cross-contamination. For a permanent fix and to safeguard your family's health, please call us at 800-MOLDS (800-66537) or email hello@saniservice.com for a consultation.
Posted by Sani Admin
Answered on April 5, 2026 5:49 pm