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Mold is an unfortunately persistent and ever-present feature of virtually every home and dwelling you find yourself in. There are measures to take to mitigate it, but ultimately, it’s going to be there regardless of what you do to stop it. However, there is one place you want to make absolutely sure it is not: your air ducts. Breathing in mold spores can be incredibly harmful to your respiratory system and cause severe problems for those with preexisting respiratory issues.

How do I know if there is mold in my home’s air ducts?

Black mold is notoriously despised by contractors when it’s spotted somewhere in a home. It likes damp and darker places, so it’s often found in carpeting and underneath drywall or wallpaper. Unfortunately, it also loves air vents thanks to the natural circulation of air it gets by living there. It’s harder to tell when you’ve got mold in your air vents since you’re not often looking inside.

To assist you if you think you may have black mold in your air vents, we’ve put together some common signs that there may be mold in your air ducts.

Personal Symptoms

Mold can cause a lot of physical signs in the human body, depending on your level of susceptibility to irritation from mold. Irritation in skin or eyes, scratchy throat, difficulty breathing, fatigue and headaches, and nausea are all signs of being exposed to mold. Unfortunately, these are also common signs of the common cold, allergies, and the flu, among other routine medical issues.

Black Dust Around Vents

If you’ve got some symptoms and want to rule out mold in your air ducts, take a look around the edges of the ducts. If there is black mold around the outside of the ducts, usually patchy in pattern and very hard to remove when cleaning solution is applied, it’s a good sign that there’s black mold inside the air duct itself.


Another tell tale sign of mold in the hold is a musty odor in the house. Mold can cause this anywhere in the house so you’ll want to check the vents if you begin to notice a musty smell throughout your home but can’t seem to locate any mold on walls or in carpeting.

Related Questions

How Do I Remove Mold in Air Ducts?

You’re going to need to call in a professional to first verify that it’s black mold before you throw too much work at it. After begins the work of cleaning out the air ducts with proper disinfectant and drying them properly done by a professional air duct cleaning service. The most important thing in all of this is to also locate the source of the mold so you can eliminate it from happening again.

How Do I Prevent Mold?

Keep your vents clear of dust where you can see it and clean your filters regularly. Clean out the ducts themselves often and make sure any maintenance problems you encounter in your air unit is handled immediately.

Mold can be hazardous to your health and disruptive to your home. Don’t let the problem go if you suspect your air ducts have been infested with mold. Getting your air ducts cleaned by a professional service should be done annually in order to keep the quality of the air in your home up to par, especially if you suffer from allergies.

Unique Air Duct Cleaning Services are home and business cleaning specialists offering a wide range of services including dryer vent cleaning. With state-of-the-art technology, we use the most advanced and efective air cleaning system available. Great customer service and respect for your home family and pets puts us a step above the rest. We are family owned and have been serving the Greater Detroit area for over 25 years. Keep the air in your home or business clean at all times and call us to learn more about our air duct cleaning services!