How to clean mold from AC leak and fix it?« Back to Previous Page

Given the high humidity levels we're experiencing in Dubai right now, that leaking AC unit is a major concern. The black spots you're seeing are almost certainly the beginning of a mold colony, a very common issue here from condensation leaks. Here's what you need to do, but proceed with caution.

First, for a small area, you can attempt to clean it yourself. Wear an N95 mask and gloves! Do not disturb it without protection. Mix a solution of 1 part white vinegar with 4 parts water. Lightly mist the area (do not oversaturate the drywall) and gently wipe with a disposable cloth. Bleach is not recommended as it only removes the color and doesn't kill the roots. However, this is only a surface fix.

The critical part is addressing the source. The AC leak must be fixed by a certified HVAC technician. In Dubai, all AC work should comply with DEWA regulations and be performed by a licensed professional to ensure it's done correctly and safely. A simple drain line flush or clearing a clogged condensate pan might solve it, but it could also be a more serious issue.

Important: If the staining is larger than a square foot, or if you notice a musty odor, this is beyond a DIY clean. Mold spores will have penetrated the wall cavity. Professional inspection and remediation are required to properly contain the area, remove contaminated materials, and ensure it's eradicated. We use specialized equipment like moisture meters and thermal cameras to find the full extent of the damage, which is almost always worse behind the wall.

For a proper fix, you need two pros: an HVAC technician to stop the leak, and a mold specialist like us to assess and remediate the damage. Don't let this spread; it's a health risk and can damage your property.

Call our team at 800-MOLDS (800-66537) for a thorough inspection or email hello@saniservice.com. We can also recommend trusted HVAC partners to fix the root cause for good.