Mold in Your AC: Signs, Symptoms, Solutions

Most homeowners don’t think too deeply about their AC until it dies for a few hours.

A hot home is horrible and we feel it instantly.

But what about a home that isn’t so hot it makes you sweat, but one where the indoor air quality is just bad enough that it:

  • Irritates your sinuses
  • Makes it hard to breath, or causes you to cough
  • Keeps your child up at night, restless, or allergic
  • Makes it harder for you to think clearly and get things done.

That’s what happens to many Tampa Bay homeowners who usually don’t realize that their air conditioner is the single worst source of mold spores and mycotoxins in their home.

Possibly even worse, it’s not a stagnant source.

Instead, it’s one that is literally circulating toxins throughout your entire home.

While it’s always hard to get too dramatic about these things, the fact is that a little fear now—or awareness, actually—could save you or your loved ones endless headaches.

  • Physically
  • Emotionally
  • Mentally
  • and Financially.

The problem is usually a moldy air conditioner—the very thing you count on to keep you cool, and provide clean, healthy air to your entire household.

Mold spores and mycotoxins are invisible but they can prevent life’s little and large pleasure moments, like this, from having a chance. Happy children, happy wife, happy life. It’s your home. Make it safe, fresh, healthy, and enjoyable.

“A HOUSE is not a HOME if it’s not safe.”

Brandon FaustFounder of Mold Solutions. Licensed, insured, IICRC & NORMI-Certified Tampa Mold Remediation specialist

Common Questions About a Very Common Problem

What are the symptoms of mold in an AC unit?

If you have mold in your AC unit, you may notice a musty or moldy smell coming from the vents. You may also experience allergy-like symptoms such as coughing, sneezing, and itchy eyes.

How do you know if your vents have mold?

If you can see dark spots through your air vent grills, dark splotches or dirt on the outside of them, feel allergic or have difficulty breathing well or sleeping through the night, you may have mold in your vents. Yes, these signs may also indicate other problems, but moldy AC vents and ductwork is one of the most common causes we see in Tampa Bay—according to what our clients tell us.

Can mold in your AC vents make you sick?

Yes, mold in your AC vents can make you sick. Exposure to mold can cause a variety of health problems, including allergic reactions, respiratory problems, and even infections in some cases.

What does mold on air vents look like?

Mold on air vents can look like black, green, or brown spots or patches. It may also look fuzzy or slimy.

How to test for mold in air vents?

You can test for mold in air vents by hiring a professional mold inspector to take samples of the air and surfaces in your home. They will then send these samples to a lab for analysis. If mold is clearly visible, testing is not particularly recommended by the CDC.

How to get rid of mold in air ducts?

Getting rid of mold in air ducts can be a difficult and time-consuming process. You’re welcome to do it yourself if you feel confident enough to know what you’re doing and how to do it, but it is definitely best to hire a professional to do this for you. Mold Solutions will use specialized equipment, processes, and solutions to remove the mold safely and effectively.

Is air duct mold removal a DIY job?

Not really. Self sufficiency is pretty great, but we believe that mold is a technical enough subject that requires training, and experience. Florida also requires licensing, certification, and other checks and balances for people working with mold.

Who should definitely NOT DIY their own mold removal?

We suggest most people don’t DIY their AC vent mold removal, but there are certain people who should never do it:

  • Infants, children, minors.
  • Pregnant women
  • Elderly people
  • Anyone who is immunocompromised
  • Anyone suffering from systemic, autoimmune, or other diseases.
  • People who know they are allergic to mold.

The reason these people should not DIY their own mold removal is that they are at a greatly elevated risk of illness and other health effects caused by mold and mycotoxins.

Signs Your AC is Moldy

If you suspect that your AC or vents have mold, there are a few signs that you can look out for.

Indicators you may have mold in your air conditioning system include:

  • Visible mold growth: If you see mold growing anywhere in or around your air conditioner or vents, it is a clear sign that there is a mold problem.
  • Musty odor: A musty or moldy smell coming from your air conditioner or vents could be a sign of mold growth. This odor is caused by the release of microbial volatile organic compounds (mVOCs), which are produced by mold.
  • Increased allergy symptoms: If you or anyone in your household experiences an increase in allergy symptoms, such as sneezing, coughing, or congestion, when the air conditioner is running, it could be a sign of mold growth.
  • Water damage: If there has been water damage in or around your air conditioner or vents, such as from a leaky pipe or a flood, there is a higher likelihood of mold growth.

Not all mold is visible, and some mold may be hidden inside your air conditioning system.

If you suspect there’s mold but can’t see it, we recommended you call us at Mold Solutions, LLC, for a Free Environmental Consultation.

In addition to these signs, it’s important to have your AC regularly maintained to prevent mold growth.

Things like changing air filters, cleaning the ducts, and ensuring the system is properly ventilated are actually pretty important.

Health Risks of Mold Exposure

Exposure to mold can lead to various health issues, especially for individuals with pre-existing respiratory conditions or weakened immune systems. Here are some of the health risks associated with mold exposure:

  • Allergic reactions: Exposure to mold can trigger allergic reactions, including sneezing, runny nose, red eyes, and skin rash.
  • Respiratory problems: Inhaling mold spores can cause respiratory problems such as coughing, wheezing, and difficulty breathing. Individuals with asthma or other respiratory conditions may experience more severe symptoms.
  • Infections: Some types of mold can cause infections in the lungs, sinuses, or other parts of the body. These infections can be serious and may require medical treatment.
  • Toxic effects: Certain types of mold produce toxic substances called mycotoxins. Exposure to these mycotoxins can lead to neurological symptoms, such as headaches, dizziness, and confusion.

It is important to note that not all individuals who are exposed to mold will experience these health effects. However, if you suspect that your home’s air conditioner or vents have mold in them, it is essential to take proper measures to address the issue and prevent further exposure.

Preventing AC Mold

To prevent mold in your home’s AC or vents, do this:

  • Keep the humidity level in your home below 60%; use a dehumidifier, or run ceiling fans, and check humidity with a hygrometer.
  • Clean and replace air filters regularly. Dirty filters can trap moisture and provide a breeding ground for mold.
  • Inspect and clean your air ducts and vents at least once a year. Mold can grow on the surfaces of them, and regular cleaning can help prevent its growth.
  • Ensure ventilation in your home. Use exhaust fans in bathrooms and kitchens to remove excess moisture from the air.
  • If you notice leaks or water damage, wipe them up and repair them immediately. Moisture is the primary cause of mold growth, and fixing leaks will help prevent it. (But hidden leaks remain a big problem.)

By taking these steps, you can help prevent mold growth in your home’s air conditioner or vents. Regular maintenance and cleaning can go a long way in ensuring the air you breathe is healthy and free of mold.

Professional Mold Remediation

If you suspect that your home’s air conditioner or vents have mold in them, hire Mold Solutions or ask us about our Free Environmental Consultation.

We have the expertise and equipment to identify the type of mold and its source, and can provide an effective solution to remove the mold.

When you hire a mold remediation company, they will start by inspecting your home’s HVAC system and vents to determine the extent of the mold growth. They will then develop a plan to remove the mold and prevent it from coming back.

The process of mold remediation typically involves the following steps:

  • Containment: The first step is to contain the mold to prevent it from spreading to other areas of your home. This may involve sealing off the affected area with plastic sheeting and using negative air pressure to keep the mold spores from spreading.
  • Removal: The next step is to physically remove the mold from your HVAC system and vents. This may involve using specialized equipment such as HEPA filters, vacuums, and brushes to remove the mold.
  • Cleaning: Once the mold has been removed, the mold remediation company will clean and disinfect the affected area to prevent the mold from coming back.
  • Prevention: Finally, the mold remediation company will take steps to prevent the mold from coming back. This may include repairing any leaks in your HVAC system or vents, improving ventilation, and installing a dehumidifier to reduce moisture levels.

Overall, hiring a professional mold remediation company is the best way to ensure that your home’s air conditioner or vents are free from mold. With their expertise and equipment, they can provide an effective solution to remove the mold and prevent it from coming back.

Tips to Prevent Mold (Maintenance)

To prevent mold growth in your home’s air conditioner or vents, you need to take some preventive measures. Here are some maintenance tips that can help you avoid mold growth:

  • Change filters regularly: Dirty air filters can trap moisture and create a breeding ground for mold. Replace your air filters every 1-3 months, depending on usage.
  • Keep your AC clean: Regularly clean your air conditioner’s coils, fan blades, and drip pans to prevent moisture buildup and mold growth.
  • Maintain good humidity levels: High humidity levels can promote mold growth. Keep your home’s humidity levels between 30-50% by using a dehumidifier or air conditioner.
  • Ventilate your home: Proper ventilation can help prevent moisture buildup and mold growth. Use exhaust fans in bathrooms and kitchens, and open windows to promote air circulation.
  • Inspect your ductwork: Have your ductwork inspected by a professional to ensure there are no leaks or moisture buildup that can promote mold growth.

By following these maintenance tips, you can prevent mold growth in your home’s air conditioner or vents. Regular maintenance and inspection can help you catch any potential mold growth early and prevent it from spreading.

Call Mold Solutions for a Free Environmental Consultation.

More Than 170 Five-Star Reviews

Stephanie K.
Stephanie K.Local Guide · 60 reviews · 35 photos
Read More
"Out of all of the options in the area, I’m so glad I went with Mold Solutions. They were the only ones that can thoroughly handle my entire problem, including the air conditioning ducts where other companies were telling me I needed 3 to 4 different service people with different bills all coming to my house at different times costing me tons of money. They got everything done in one day. I felt the difference in my health immediately after they finished." — 5-Star Google Review
John E.
John E.21 reviews · 13 photos
Read More
I'll start by saying Alisha from the word go was fantastic and brandon when he came out put me at ease. See I got taken by another company for thousands of dollars .The team hats off to you Devin, Heather,Monica thank you for doing such a caring job and giving us back are home in a condition we could be safe in and start the build back process. Devin and Alisha thank you for responding to every question we had . I will recommend you to whomever has to go through this type of horrible experience. You guys handled it with compassion and integrity and that in itself is a dieing trait So many thanks to you all....
Linda. M
Linda. M6 reviews · 5 photos
Read More
Mold solutions just remediated mold in my air handler and ductwork throughout my home. They were very thorough. I was impressed with their knowledge of mycotoxins from mold and the seriousness of mold. All of the staff that I interacted with was patient, friendly, helpful and efficient. They kept me informed and I was super happy that the entire home was dry fogged with pet friendly ingredients. My two cats and I had to go out on the patio for 3 hours as the dry fog did it's thing. They kept me informed and let me know when it was perfectly safe to go back inside. Trustworthy, efficient and nice.

Mold Solutions is Tampa Bay's Highest-Rated Mold Remediation Company!

Free Environmental Consultation

Schedule a free environmental consultation from the experts at Mold Solutions. Our clients are family to us, and our roots in the industry go back to our own experience with mold in the home and how it affected our youngest and most precious.

New to Mold Solutions? Take 10% Off First Order