How to inspect AC mold behind walls before it spreads?« Back to Previous Page

Our AC unit in the bedroom has been leaking a bit for the last few weeks, and now we're starting to see some black spots on the wall behind the curtain. With this humidity, I'm worried it's turning into a mold problem we can't see inside the unit or walls. What's the best way to get a proper inspection done to find the full extent of the issue before it gets worse?
Posted by Matthew Allen
Asked on March 16, 2026 3:12 pm
Based on your description, this is a classic and serious scenario we encounter frequently in Dubai. The combination of a leaking AC unit and our high ambient humidity creates a perfect breeding ground for mold within wall cavities and the AC system itself, long before it becomes visibly apparent on the surface. A proper inspection is critical to prevent structural damage and potential health issues.

A professional mold inspection for this issue is a multi-step forensic process. It begins with a detailed visual assessment using borescopes to see inside wall voids and the AC evaporator coil chamber, areas you cannot access. We then use advanced moisture meters and thermal imaging cameras to map the precise extent of water infiltration behind the wall, identifying all areas of condensation that are feeding the mold growth. The most crucial step is air and surface sampling. We take air samples from the bedroom, the AC supply vent, and a control sample from outside. Lab analysis of these samples identifies the specific mold genus and spore concentration, which is essential for designing an effective remediation protocol and is often required for insurance claims.

We strongly advise against a DIY approach. Disturbing the mold without proper containment can cause a massive release of spores throughout your home. Furthermore, Dubai municipalities have specific guidelines for environmental health and building integrity that professional companies like ours are trained to adhere to.

Given the leak and visible growth, this requires immediate professional attention. To get a comprehensive inspection and report that outlines the full extent of the problem, we recommend you contact our certified team at Saniservice. Call us at 800-MOLDS (800-66537) or email hello@saniservice.com to schedule a diagnostic assessment.
Posted by Sani Admin
Answered on March 18, 2026 8:39 pm