Can persistent moisture cause high AC costs?« Back to Previous Page

After the heavy rain last month, I noticed a persistent musty smell coming from the closet in my new apartment on the third floor. The AC seems to struggle to keep up with the humidity despite running almost non-stop. Have you had similar issues? If so, did you hire professionals or try DIY solutions first, and what were your costs like?
Posted by Carmen Becker
Asked on January 3, 2026 6:22 pm
Indeed persistent moisture can significantly contribute to elevated AC costs. In the UAE and specifically in Dubai, where we frequently experience high humidity levels, especially after heavy rains, it's crucial to understand the relationship between moisture accumulation and your air conditioning (AC) system.

In your scenario, a musty smell from your closet despite running the AC non-stop suggests that there may be underlying issues such as hidden water leaks or inadequate ventilation. In Dubai, where humidity can soar above 80%, it's not uncommon for moisture to accumulate in various parts of buildings, particularly in closets and storage areas.

High levels of humidity can lead to several problems:
1. Increased AC runtime: To maintain a comfortable indoor temperature, the AC must work harder to remove excess moisture from the air.
2. Higher energy consumption: As your AC operates more frequently and for longer periods, it will consume more electricity, leading to higher utility bills.

In such cases, it would be advisable to conduct a professional inspection of your property. Local regulations in Dubai require properties to have regular inspections by certified professionals who can identify and address moisture-related issues before they lead to serious damage or health concerns. Hiring a service like Saniservice at 800-MOLDS (or 800-66537) could provide you with expert guidance on how to mitigate these issues effectively.

Some practical steps you might consider include:
1. Inspecting your home for any visible signs of leaks or water damage, especially around pipes and near windows.
2. Ensuring proper ventilation in high-moisture areas such as bathrooms and kitchens.
3. Using dehumidifiers in particularly humid rooms to reduce the load on your AC system.

Remember that while DIY solutions can sometimes offer temporary relief, professional assistance is often necessary to address root causes and ensure long-term comfort and energy efficiency. Regular maintenance of your HVAC system and ensuring adequate insulation can also help in managing humidity levels effectively.

Taking proactive steps now could prevent more significant issues down the line, saving you from higher AC costs and potential structural damage.
Posted by Sani Admin
Answered on January 4, 2026 11:13 pm