How to find certified HVAC for mold and AC noise?« Back to Previous Page

The AC in our villa in Al Barsha has been making a weird grinding noise for a few days, but this morning I found a small patch of black mould on the wall behind the indoor unit. We’ve lived here for 2 years and just noticed this, and I’m worried about my toddler’s health. What’s the best way to find a certified and reputable HVAC company to clean the ducts and fix the issue properly, not just someone who will wipe the visible mould away?
Posted by Minh Nguyen
Asked on March 20, 2026 8:25 am
Based on the symptoms you've described – the grinding noise followed by visible mould growth in Al Barsha – you are absolutely right to be concerned, especially with a toddler in the house. This isn't just an AC issue; it's an indoor air quality and potential health hazard.

The grinding noise typically indicates a mechanical problem, possibly a failing blower motor bearing. This lack of proper airflow, combined with our extreme Dubai humidity, creates perfect conditions for condensation and mould growth inside the ductwork, which then spores out from the unit onto your wall. Simply wiping the visible patch is a temporary fix; the source contamination within the system remains.

For a certified and reputable HVAC company in the UAE, you must look for two key things:

1. DMCC/DCAA Approved: Many companies are handymen, not certified for mould remediation. You need a contractor approved by the Dubai Municipality or the Dubai Civil Aviation Authority (which oversees HVAC standards). They adhere to strict protocols for containment, removal, and disposal to prevent cross-contamination.

2. NADCA Certification: The National Air Duct Cleaners Association sets the global standard. A NADCA-certified company will use specialized tools like video inspection scopes to assess the contamination and powerful truck-mounted HEPA vacuum units to properly extract the mould, not just spray a chemical and call it a day.

Do not hire the first "AC cleaning" service you find online. Ask for their certifications and a detailed scope of work that includes mechanical repair, full system inspection, and mould remediation.

Given the visible growth and your child's health, a professional inspection is non-negotiable. Our teams are DMCC approved and use NADCA standards to not only fix the noise but completely eradicate the mould source and provide a post-remediation verification report for your peace of mind.

Call us directly at 800-MOLDS (800-66537) for an immediate assessment. We serve Al Barsha daily and can explain the entire process.
Posted by Sani Admin
Answered on March 21, 2026 9:30 am