Can we clean black mold from AC leak ourselves?« Back to Previous Page

The AC in our master bedroom has been leaking a little for a couple of months, and now we’ve discovered a patch of black mold about the size of a dinner plate on the wall behind the headboard. My husband has been sneezing a lot more than usual and I’m starting to get worried. Is this something we can clean ourselves with bleach from the supermarket, or do we absolutely need to call a professional mold remediation company to deal with it?
Posted by Hana Suzuki
Asked on March 30, 2026 4:20 am
Based on the scenario you've described, I strongly advise against attempting to clean this yourself with supermarket bleach. The presence of a recurrent AC leak and a visible patch of black mold the size of a dinner plate indicates a significant moisture issue that has likely persisted for some time.

The primary concern is that what you see on the surface is often just the "bloom" of the mold colony. The fungal roots (hyphae) can penetrate deep into the drywall and building materials. Superficial cleaning with bleach will only remove the surface discoloration but will not address the root infestation within the wall cavity. Furthermore, bleach is ineffective on porous surfaces and its high water content can actually feed the mold, causing it to regrow more aggressively. Disturbing the colony through DIY cleaning also risks aerosolizing a high concentration of spores and mycotoxins, which you and your husband would then inhale, likely explaining his increased sneezing.

Given Dubai's high humidity and our reliance on year-round AC, these conditions are perfect for rapid mold proliferation. The leak must be repaired by a qualified AC technician first to eliminate the moisture source. For the remediation itself, professional intervention is critical. We follow strict protocols for containment, air filtration, and removal of contaminated materials to prevent cross-contamination to other areas of your home.

Your husband's symptoms are a clear health indicator that professional assessment and remediation are necessary. For your safety, I recommend you call our team at Saniservice for a comprehensive inspection. We can identify the full extent of the contamination, provide a certified lab analysis of the mold species, and execute a safe, guaranteed remediation. Please call us at 800-MOLDS (800-66537) or email hello@saniservice.com.
Posted by Sani Admin
Answered on March 31, 2026 1:05 am