Mold from AC leak: DIY or professional?« Back to Previous Page

The AC in our master bedroom has been leaking a bit for the last couple of months, and now we’re starting to see small black spots along the corner of the wall near the vent. My wife has been waking up with a stuffy nose and a headache every morning, which clears up after she leaves for work. Is this something we can handle ourselves with bleach spray from the supermarket, or do we absolutely need to call in a professional mold remediation company, and what would that roughly cost for a small area like this?
Posted by Sarah Rodriguez
Asked on April 8, 2026 1:10 am
Based on the symptoms you've described—persistent AC leakage, visible black microbial growth, and correlating health effects like morning headaches and congestion—this is a situation that warrants immediate professional attention, not a DIY approach.

The black spots are a clear indicator of active mold colonization, likely exacerbated by Dubai's high humidity and the constant moisture from the leak. Using supermarket bleach is highly inadvisable. Bleach is primarily water, which can actually feed the mold roots deep within porous materials like drywall and concrete. It only bleaches the surface appearance and releases harmful chlorine fumes, especially dangerous in an enclosed AC-cooled bedroom. More critically, the health symptoms strongly suggest your wife is reacting to mycotoxins and spores being circulated by the AC system itself, affecting the entire room's air quality.

Under UAE regulations, proper mold remediation requires containment protocols to prevent cross-contamination, professional-grade biocides approved by Dubai Municipality, and specialized HEPA filtration to remove airborne spores. A small visible patch often indicates a larger problem within the wall cavity.

For a precise assessment and quote, I strongly recommend a professional inspection. Saniservice offers comprehensive testing to identify the mold type and the extent of contamination. Remediation for a localized area like this typically starts from AED 1,500, but this can only be confirmed after an on-site evaluation. Given the health impacts, this is not a repair to delay.

Call our experts at 800-MOLDS (800-66537) or email hello@saniservice.com to schedule an inspection and protect your indoor air quality.
Posted by Sani Admin
Answered on April 8, 2026 9:09 pm