DIY or pro for black mold from AC leak?« Back to Previous Page

A dinner-plate-sized patch from a suspected AC leak is a significant moisture issue that typically requires a professional assessment. In Dubai's climate, the high humidity can cause mold to regrow quickly if the underlying water source isn't completely resolved and the area isn't properly dried.

Bleach is not recommended; it only removes surface discoloration on porous materials like drywall but does not kill the mold roots. It can also release harmful spores into the air. For a patch that large, the damp smell indicates potential hidden growth within the wall cavity from the leak.

The priority is stopping the AC leak and identifying any concealed damage. A professional remediation process involves containing the area, removing affected porous materials like contaminated drywall or insulation, HEPA vacuuming, and using specialized antimicrobial solutions. The final, critical step is a post-remediation verification test from an independent lab to confirm the spore count has returned to normal indoor levels.

For a proper fix, you should budget for both the leak repair from an AC technician and the mold remediation service. The cost is driven by the extent of the demolition required to access and remove all damaged materials. Getting a detailed assessment is essential for an accurate scope of work and cost estimate.