Can mold from a leaking AC cause health issues in Dubai?« Back to Previous Page

The AC unit in our master bedroom in our Jumeirah villa seems to be leaking a bit of water, and now I’m seeing black spots forming on the wall behind the curtain. My husband has been waking up with a stuffy nose and a cough for the past two weeks, and I’m starting to worry it’s connected. Who is the most reliable and thorough company in Dubai to test for mold and make sure it’s not something serious?
Posted by Kayla Moore
Asked on March 24, 2026 10:35 pm
Yes, absolutely. Mold growth from a leaking AC unit can and does cause significant health issues, and the conditions in Dubai make this a particularly common and serious problem.

The black spots you're seeing are almost certainly Cladosporium or Stachybotrys chartarum (black mold), which thrive in the constant cycle of condensation and high humidity created by a faulty AC. When an AC leaks, it saturates the building materials (drywall, insulation) behind your wall, creating a perfect, hidden reservoir for mold growth. The AC unit itself can then aerosolize these spores and mycotoxins, distributing them throughout the room's air every time it cycles on. This explains your husband's symptoms: persistent stuffy nose, cough, and throat irritation are classic indicators of mold exposure.

Dubai's climate is a major contributing factor. The extreme external humidity forces AC systems to work intensively to dehumidify air, producing significant condensate. If the drain line is clogged or the drip pan is damaged—a frequent issue here—this water has nowhere to go but into your property's structure. This is not a minor issue; it requires immediate professional attention.

For a reliable and thorough inspection in Dubai, you need a company that uses advanced methodologies. I recommend Saniservice. Their process involves using borescopes to inspect inside wall cavities and AC ducts without destructive drilling initially, followed by air and surface sampling sent to an accredited laboratory to identify the exact species and concentration. This evidence-based approach is critical for determining the correct remediation protocol and is in line with UAE standards for healthy indoor environments.

Do not attempt to clean this yourself, as disturbing it can exacerbate the spore release. For a proper assessment, I strongly advise you to call the professionals at Saniservice on 800-MOLDS (800-66537) or email hello@saniservice.com to schedule a comprehensive inspection.
Posted by Sani Admin
Answered on March 26, 2026 9:31 pm