Is AC leak causing dangerous black mold?« Back to Previous Page

Based on your description, this is a situation that requires immediate attention and should not be delayed until the weekend. The combination of a persistent AC leak, visible black discoloration, and emerging health symptoms is a significant red flag.

In the UAE's high-humidity climate, air conditioning systems are a primary source of moisture intrusion when they malfunction. A leak saturates building materials like drywall and carpet, creating an ideal environment for microbial growth within 24-48 hours. The black spots you see are likely the spore-producing bodies of a mold colony, but the actual growth is often far more extensive, spreading unseen behind the skirting board and into the sub-floor. Your scratchy throat is a common physiological reaction to inhaling these spores and microbial volatile organic compounds (mVOCs), especially during prolonged exposure while sleeping.

According to UAE health and safety regulations, building management is typically responsible for repairing the source of the leak—the AC unit and its drainage system. However, the resulting contamination is a separate issue that often falls to the tenant to address for their own health and safety.

We strongly recommend you contact your building management today to stop the water intrusion. Simultaneously, you should seek a professional indoor environmental inspection. DIY cleaning is not advised as it can disturb the colony, causing a massive release of spores. A certified inspector will conduct moisture mapping and air quality testing to determine the full extent of the contamination and provide a protocol for safe, effective remediation.

For immediate assistance with inspection and testing, please contact our specialists at Saniservice. Call 800-MOLDS (800-66537) or email hello@saniservice.com to schedule an assessment.