How to inspect AC mold in walls behind curtain?« Back to Previous Page

The AC unit in our master bedroom in Downtown Dubai has been leaking a little for the past two weeks, and now I’m seeing a few small black spots on the wall behind the curtain. We run the AC constantly and I’m terrified it’s mold and that it’s spreading inside the walls where I can’t see it. What’s the best way to get a proper inspection to find the full extent of the problem before it gets worse?
Posted by Yuna Takahashi
Asked on April 21, 2026 3:10 am
A persistent leak from your AC unit with visible black spots warrants immediate investigation, as mold growth inside wall cavities is a common and serious consequence in Dubai's climate. The constant AC operation creates significant condensation, and any leak provides the moisture mold needs to thrive out of sight.

For a situation like this, a visual check is insufficient. Do not attempt to remove the wall yourself, as this can disturb and spread spores. A proper inspection requires tools that detect moisture and mold behind surfaces. Professionals use non-invasive moisture meters and thermal imaging cameras to map the exact extent of water saturation within the wall without causing damage. This identifies the full scope of the problem before any remediation begins. Air sampling can also help determine if there's an elevated spore count in the room's air, indicating active growth.

The Dubai Municipality has clear guidelines for building maintenance and indoor air quality, making a documented inspection important. Look for a provider that conducts a science-driven assessment and can provide a detailed report with lab-verified identification of the mold type. This evidence-based approach is crucial for effectively planning the remediation and for communicating with your building management, as they are typically responsible for fixing the AC leak itself. Resolving the source of the water intrusion is the critical first step to prevent recurrence.
Posted by Sani Admin
Answered on April 23, 2026 8:07 am