How to inspect mold from AC leak in wall and wardrobe?« Back to Previous Page

The AC in our master bedroom has been leaking a bit onto the carpet for a while, and now I’m seeing a few black spots on the back wall of the wardrobe that’s against that same wall. With the humidity rising again, I’m worried it’s going to get worse and spread to our clothes. What’s the best way to get a proper mold inspection done to find the full extent of the problem, especially one that can check inside the AC unit and the wall cavity?
Posted by Charles Jackson
Asked on April 14, 2026 1:35 pm
Your situation describes a classic Dubai mold scenario where a small AC leak creates a hidden moisture problem, exacerbated by our high humidity. The black spots are a clear sign of active growth, and it's very likely more extensive behind the wardrobe and inside the wall cavity.

A proper inspection for this isn't a simple visual check. You need a professional who uses a combination of methods. They should start with a detailed moisture mapping of the affected wall and surrounding area using a non-invasive moisture meter and thermal imaging camera to pinpoint dampness inside the cavity without destructive probing. The AC unit itself must be opened and its internal drip pan, coils, and drainage lines inspected for blockages and biological growth, which is a common source of the problem. For the wall, a borescope inspection—inserting a small camera through a tiny hole—is often necessary to visually confirm the extent of mold growth inside the wall cavity without major demolition.

Crucially, the inspection should include air and surface sampling. Air sampling inside the wardrobe, the room, and a control location (like outside) compares spore counts to determine if the area is contaminated. Swab or tape-lift samples from the visible spots and inside the AC unit are then sent to an accredited microbiology lab for analysis. This identifies the species present, which determines the appropriate remediation protocol and indicates potential health risks.

Avoid companies that offer a "free inspection" that only consists of a visual look and immediately quotes a high-price remediation. A credible inspector provides a detailed report with lab results, moisture readings, and thermal images before any discussion of remediation work. This evidence-based approach is the only way to understand the full scope and ensure the solution actually addresses the root cause, protecting your health and your property from further damage.
Posted by Sani Admin
Answered on April 15, 2026 8:17 pm