Mold in closet from leak: DIY or call professional?« Back to Previous Page

Our master bedroom closet in our Jumeirah villa has had black spots growing on the back wall for the last month, and it’s starting to spread to our clothes. We had a small leak from the upstairs bathroom a while back, and I’m worried it’s gotten worse behind the walls. Is this something I can handle myself with bleach and a dehumidifier, or should I just call a professional company for an inspection? What’s the typical price range for a proper mold removal job for something like this?
Posted by Aisha Al-Nahyan
Asked on May 10, 2026 5:20 pm
Given the leak history and spread to your clothes, this requires professional assessment. In Dubai's high humidity, mold can penetrate porous materials like drywall and fabric far beyond visible growth. Bleach only removes surface discoloration and can worsen indoor air quality; it does not address the moisture source or root system.

For a suspected leak behind a wall, a proper inspection with a borescope and moisture meter is needed to assess structural saturation. The Dubai climate, with year-round AC use creating condensation risks, often means hidden mold colonies are larger than they appear. Spores spreading to clothing indicate active growth.

Professional remediation involves isolating the area, removing contaminated porous materials like affected drywall or insulation, HEPA vacuuming, and applying EPA-approved antimicrobials. Crucially, they must identify and rectify the moisture source—often a leaking pipe, faulty AC drain line, or thermal bridging causing condensation—or the mold will return.

Costs are not fixed; they depend entirely on the extent of damage behind the wall. A small, contained closet job is typically more affordable, but if the leak has saturated insulation or structural elements, the scope increases. Reputable companies provide a detailed assessment and quote only after diagnostic testing. Request a scope of work that includes post-remediation verification to ensure the job is complete.
Posted by Sani Admin
Answered on May 11, 2026 1:57 pm