Is black mold in my AC wall dangerous for kids?« Back to Previous Page

The AC in our villa's guest room seems to be leaking into the wall, and now we've discovered a big patch of black mold behind the wardrobe. It’s been getting worse since the last humidity spike a couple of weeks ago. With two small kids at home, I'm really worried, but I'm not sure if this is something I can tackle with bleach and a mask or if I absolutely need to call a professional company. What's the best way to handle a mold problem this size in Dubai?
Posted by Tariq Khan
Asked on March 20, 2026 4:43 pm
Yes, black mold growing due to an AC leak in the wall is absolutely a significant health concern, especially for small children. Their developing respiratory systems are more vulnerable to the mycotoxins and allergens that molds like Stachybotrys chartarum (often referred to as "black mold") can produce. Exposure can exacerbate or lead to allergic reactions, asthma, chronic coughing, and other respiratory issues.

In Dubai's climate, this is a critical issue. The high ambient humidity, combined with the constant cooling from air conditioning, creates massive condensation problems. An AC leak inside a wall cavity is essentially creating a perfect, hidden incubator for mold growth. The porous building materials like gypsum board (drywall) and concrete wick the moisture, allowing the mold to proliferate unseen, often far beyond the visible patch you discovered behind the wardrobe.

Attempting to clean this with bleach is strongly discouraged. Bleach is ineffective on porous surfaces; it only bleaches the surface color while the fungal roots (hyphae) remain deep within the wall. Furthermore, improper cleaning will aerosolize the spores, spreading the contamination throughout your home and increasing the risk of inhalation. This is a job that requires professional containment and remediation.

For a problem of this nature—originating from a leak inside a wall—you must call a professional. We follow strict protocols for containment (using negative air pressure chambers), safe removal of contaminated materials, and application of EPA-approved antimicrobial agents. A proper inspection, including moisture mapping and possibly air quality testing, is the first step to developing a remediation plan that protects your family.

For immediate assistance and a professional assessment, I recommend contacting our team at Saniservice. Call 800-MOLDS (800-66537) or email hello@saniservice.com. With children in the home, it is essential to address this correctly and promptly.
Posted by Sani Admin
Answered on March 23, 2026 1:59 am