How to fix recurring AC leak and black mold in JLT?« Back to Previous Page

A recurring AC leak causing black mold in JLT is a common issue driven by the high humidity and year-round AC use. The black speckles are likely Cladosporium or another mold species thriving on the constant moisture. The most thorough inspection requires a two-part approach: identifying the leak source and assessing the mold contamination.

First, a certified HVAC technician must inspect the AC unit, drain pan, and condensate drain line for a clog, crack, or improper installation causing the persistent leak. Simply wiping the mold is ineffective if the moisture source isn't fixed.

Concurrently, the mold growth behind the wardrobe needs professional assessment. A proper inspection involves a moisture meter to map the dampness in the wall and air sampling or surface swabs to identify the mold type and concentration. This is critical, as improper handling can spread spores. For a hidden problem of this nature, a company with its own microbiology lab can provide the specific data needed to guide the remediation.

The fix involves stopping the leak, then properly remediating the moldy wall. Affected drywall or plaster may need to be removed and replaced if the moisture has deeply penetrated. After remediation, ensure the area is completely dry before repainting with a mold-inhibiting primer. To prevent recurrence, maintain low indoor humidity (ideally below 60%) and consider scheduling regular HVAC maintenance to prevent future drain line blockages.