Urgent to remove spreading mold causing headaches in Dubai?« Back to Previous Page

The wall behind our sofa in the living room has these black and greenish spots that seem to be spreading. We first spotted a small patch after that heavy fog a few weeks ago, but it’s definitely gotten bigger, and my wife has started getting headaches. We’re in an older building in Bur Dubai. How urgently do I need to get a professional to deal with this, or is it something I can handle myself with a bleach solution this weekend?
Posted by Megan Jones
Asked on March 18, 2026 2:46 pm
Based on your description, you absolutely need a professional inspection, and with the symptom of headaches, I'd consider this urgent. Let me break down why.

That black and greenish spreading pattern is a major red flag, and the timing after the heavy fog is the key clue. Fog creates 100% humidity, and in older Bur Dubai buildings, that moisture gets sucked into the concrete walls. It has nowhere to go, creating the perfect breeding ground for mold inside the wall cavity. what you see on the surface is likely just the tip of the iceberg. A bleach solution is a terrible idea for porous surfaces like drywall or concrete. It only bleaches the surface color away but doesn't kill the roots (hyphae), and the water in the solution actually feeds the mold deeper within the wall, making the problem worse long-term.

Your wife's headaches are a significant indicator of potential mycotoxin exposure, which requires immediate attention. This is not a DIY situation.

Under the Dubai Municipality public health guidelines, persistent mold infestations that cause health issues are a serious concern, and a professional assessment is mandated to identify the moisture source and full extent. We use thermal imaging cameras and borescopes to see inside the walls, then take air and surface samples to identify the species – which is critical for proper remediation.

Don't wait for the weekend. You need to identify and stop the moisture source and properly remediate. For a certified inspection and a proper plan, please call us at 800-MOLDS (800-66537) or email hello@saniservice.com. We can advise on next steps immediately.
Posted by Sani Admin
Answered on March 19, 2026 5:24 pm