How to inspect for mold inide walls?« Back to Previous Page

That wall-facing-outside location combined with the recent humidity suggests a classic Dubai condensation issue, likely from the temperature differential between your air-conditioned room and the hot exterior wall. This often means the mold is growing due to moisture inside the wall cavity, not just on the surface.

For a proper inspection to check inside walls, a visual assessment is not enough. You need a professional who uses a borescope—a small camera inserted through a tiny hole in the drywall—to visually confirm growth in the cavity. They should also use a moisture meter on the wall; readings significantly above 20% indicate an active moisture problem fueling the mold. The most definitive method is air quality testing, comparing spore counts inside the closet to an outdoor control sample. A high indoor count, especially with similar species present, confirms hidden amplification.

In Dubai, always verify the company has certifications like IICRC and uses a third-party accredited lab for analysis, not just in-house equipment. This ensures results are unbiased and defensible if you need to involve your landlord or building management. Given the climate, the priority is to identify and stop the moisture source first; otherwise, any cleaning will be temporary.