Can You Remove Mold from Your HVAC Ductwork?

The simple HVAC (heating, ventilation, and air conditioning) system has evolved over time to satisfy the diverse needs of various households around the United States. There are simple single-stage heating and cooling systems, as well as more complicated multi-stage HVAC technologies that can help save money on energy.

HVAC systems have evolved into various sorts over the years, including zoned systems, humidity management, heating systems, and cooling systems. Mold can grow colonies inside the ductworks, regardless of the purpose of these systems. This post will show you how to properly remove mold from air ducts.


Mold infestations typically have a musty odor. You should be able to smell the peculiar musty odor in several nearby rooms if your HVAC system has mold. Also, you should be able to see the mold growth around the ducts, in the vents, and in other sections of the ductwork if the mold issue is serious.


The spores are too small to view without proper equipment, and there will be no other obvious signs until the infestation has spread widely. People must rely on their sense of smell to detect the presence of this sneaky intruder in their houses.


What Is the Cause?


In most cases, homeowners can effectively remove mold from exposed areas. On the other hand, mold spreads through spores, and even a small colony can quickly lead to a re-infestation. Mold can grow in HVAC systems and air ducts because of humidity and water buildup. You may find yourself fighting a losing battle unless you figure out what is causing the growth in the first place.


Only small mold problems are appropriate for DIY remedies. These are more effective in isolated cases where the ductwork is not affected. If your main bathroom or storage area, for example, smells moldy, you can try to scrub the duct or vent that aerates these areas. It is normal for some areas of the ducting to collect more mold than others. If you are dealing with moisture and mildew issues and you are unsure of the source, hiring a professional mold cleanup firm can help find and determine the cause and extent of mold damage.

Bathrooms are especially prone to mold infestations due to greater humidity levels and the fact that water rarely dries completely. There’s a strong likelihood that mold will grow again in the bathroom, and studies suggest that over 70% of toilets and showers in urban areas have hidden mold issues.


Removing Mold from Your HVAC System


Choosing a cleaning solution is the first and most important step in determining the fate of your home’s HVAC system and, ultimately, whether you are successful in removing mold from air ducts. Depending on the cleaning chemical you use, mold can either be removed or allowed to fester in secret. As a result, you should exercise caution while choosing a DIY mold solution.


To make your own mold-removal solution, combine the following ingredients:


  • One tablespoon of household detergent
  • Half a tablespoon of baking soda
  • One cup of water


On non-porous surfaces, a solution of one part of bleach to 16 parts of water should suffice.

A mask, strong industrial strength gloves, coveralls, and eye protection are all required. You’re shielding yourself not only from the mold but also from the chemicals you might need to clean it.

Final Words

We hope this helps you to get rid of mold in those hard-to-reach places of your HVAC.

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