How to fix AC leak and prevent mold recurrence?« Back to Previous Page

The black speckles are likely mold growth fueled by the AC condensation leak, a common issue in Dubai's humid climate where ACs run year-round. Fixing this requires two steps: stopping the moisture source and properly remediating the mold.

First, address the leak. Condensation drain lines can clog with dust and microbial slime, causing water to back up and leak. A qualified AC technician should clear the drain line with a vacuum or pressurized flush, check the drain pan for cracks, and ensure the unit is properly leveled. Simply cleaning the mold without fixing the leak guarantees it will return.

For the mold itself, surface cleaning with a diluted bleach solution (1 part bleach to 10 parts water) can remove visible growth on non-porous surfaces. However, if the mold has spread into porous materials like drywall or behind skirting boards, cutting out and replacing the affected section is often necessary to prevent recurrence.

Given the location behind furniture and the duration of the leak, a professional inspection is recommended. They can use moisture meters to assess the full extent of water damage and recommend a remediation plan. In many cases, applying an EPA-approved antimicrobial coating after cleaning can help prevent regrowth in that area. To ensure it's fully resolved, some companies offer post-remediation verification testing to confirm the space has returned to a normal fungal ecology.