Can I clean AC mold myself or call a professional?« Back to Previous Page

The AC in my apartment seems to be leaking a little water onto the wall behind the sofa, and now I’m seeing a bunch of black, fuzzy spots spreading there. It’s been getting worse over the last couple of weeks in this humidity. Is this something I can clean myself with bleach from Carrefour, or do I need to call a professional cleaning company to handle it?
Posted by Sophie Petit
Asked on March 19, 2026 4:41 am
Based on your description, what you are seeing is very likely Stachybotrys chartarum, commonly called "black mold," which thrives in the constant damp conditions created by an AC condensate leak. The high humidity in Dubai provides the perfect environment for this rapid spread.

While a small, surface-level patch might be addressed with a DIY approach, your situation requires caution. The leak indicates an ongoing moisture source, meaning the mold will absolutely return if the root cause is not fixed. More critically, the mold growth behind your sofa is not superficial; the moisture has likely penetrated the drywall, and the mycotoxins from Stachybotrys can become airborne during any cleaning attempt, posing a significant health risk.

Bleach is not recommended. It is ineffective on porous surfaces like drywall as it only bleaches the surface while the root structure (hyphae) remains deep within the material. It can also aggravate the problem by adding more moisture.

For a case like this, professional remediation is strongly advised. Our certified inspectors will first conduct a thorough assessment, including moisture mapping and air quality testing, to determine the full extent of the contamination. The remediation process involves isolating the area, removing and safely disposing of the contaminated drywall, using industrial-grade HEPA filtration to cleanse the air, and applying specialized antimicrobial agents. Crucially, we will identify and rectify the AC leak to prevent recurrence.

Do not risk your health or allow the problem to worsen. For a professional inspection and a definitive solution, please call us at 800-MOLDS (800-66537) or email hello@saniservice.com.
Posted by Sani Admin
Answered on March 21, 2026 3:51 am