How to remove black mold in Al Barsh villa closet?« Back to Previous Page

We've lived in our villa in Al Barsha for 2 years and just noticed a big patch of black mold spreading on the ceiling in our master bedroom closet. It started after that really humid spell we had a few weeks ago and seems to be getting worse. I'm worried about my family's health and the cost of fixing it, but I have no idea where to start. Is this something I can handle myself with bleach, or should I call a professional company, and what would a reasonable price be for a single room treatment?
Posted by William Clark
Asked on April 20, 2026 5:05 pm
That black patch is a classic sign of condensation-related mold, very common in Al Barsha villas after humid periods. The high outdoor humidity, combined with your air-conditioned closet, creates the perfect environment for it to grow on cold surfaces like the ceiling.

For a patch larger than one square meter, professional remediation is strongly advised. This is because the visible growth is often just the surface manifestation; the root cause is likely trapped moisture within the ceiling void or behind the wall that you cannot see or treat yourself.

Do not use bleach. It is mostly water, which can feed the mold roots you don't see, and its fumes are hazardous in an enclosed space. It also will not prevent regrowth.

Start by identifying the moisture source. Check for a potential AC duct leak in the attic space above the closet or a minor roof leak exacerbated by the recent rains. Improving ventilation in the closet can help, but it won't solve an underlying water issue.

A professional inspection is the correct first step. They will use moisture meters and thermal imaging to locate the hidden source of the problem. Remediation involves isolating the area, safely removing contaminated materials, HEPA vacuuming, and applying antimicrobial treatments to prevent recurrence. The cost is driven by the extent of the hidden damage, not just the visible stain, so an on-site assessment is necessary for an accurate scope of work. After remediation, consider a lab test to verify the spore count in the room has returned to normal levels.
Posted by Sani Admin
Answered on April 23, 2026 3:53 pm