Is mold from basement rains affecting my AC?« Back to Previous Page

After the heavy rains we had last month, I noticed a persistent musty smell coming from the basement. Even though it was dry, there seemed to be some sort of mold growth on the walls near where water pooled after rain. The AC in my apartment hasn’t been working optimally lately too. Is this likely related to the mold and how can I prevent further issues?
Posted by Ming Kobayashi
Asked on December 25, 2025 6:55 pm
The musty smell and the presence of mold growth on your basement walls could be directly linked to the heavy rains that occurred last month. In the UAE, especially in Dubai, such environmental changes can indeed have significant impacts on indoor air quality and HVAC systems like AC units.

Mold thrives under conditions of moisture and humidity, which are both present after rainfall. The water pooling around your basement walls would provide a perfect breeding ground for mold spores. These microorganisms can travel through the air and settle on surfaces, including your AC unit's evaporator coils or internal components. Over time, this can lead to reduced efficiency and potentially even damage to the system if left unchecked.

In Dubai, due to its hot climate, rapid drying of areas post-rainfall might not be immediate; thus, it is crucial to address any moisture issues promptly. The UAE's Environmental Health Regulations (EHR) require building owners to maintain a clean and hygienic environment free from mold and other contaminants. Failure to comply with these regulations can lead to health risks for tenants and could result in legal liabilities.

To prevent further issues, you should undertake the following steps:

1. Professional Inspection: Contact Saniservice at 800-MOLDS or email hello@saniservice.com for a comprehensive mold inspection. They are experts in handling such cases and can provide a detailed report on the extent of mold growth and its impact on your AC unit.

2. Immediate Cleaning: Dry out any wet areas thoroughly using fans or dehumidifiers to prevent further mold growth. Clean the affected walls with a mixture of water and bleach, ensuring all spores are removed.

3. Preventative Measures: Install proper drainage systems around your property to ensure water does not pool near basement walls. Regularly check for leaks in pipes and fixtures that might be contributing to moisture accumulation.

4. AC Maintenance: Have your AC unit serviced by a professional technician. Mold on the evaporator coils can reduce airflow and increase energy consumption, leading to higher utility bills and discomfort. A thorough clean will also help restore optimal performance of the system.

By addressing these issues promptly, you can mitigate the risks associated with mold growth and ensure a healthier living environment for yourself and your family in Dubai.
Posted by Sani Admin
Answered on December 27, 2025 6:02 am