Mold in Air Ducts

Mold in Air Ducts

If you live in Baltimore, MD and are concerned about mold in your air ducts-well, you probably should be. The truth of the matter is that mold growing in your air ducts is cause to take immediate action due to the dangers it presents to your health and wellness.

Mold can cause various moderate to severe allergic reactions, and is also dangerous for infants, small children, the elderly, and the immunocompromised. Simply put, it's not a problem that should be allowed to persist in your home. Plus, did you know that once mold starts to spring up, it can quickly spread to the rest of your ventilation system?

It's like an unseen invader that's dead-set on creeping as far as it possibly can-and it's definitely NOT something you want to share your living space with. So in this article, you're going to learn everything you need to know about how to not only identify whether or not there's mold growing in your air ducts but also how to take action to eliminate it once discovered.

Let's dive into it.

What Causes Mold to Grow in Air Ducts?

A lot of people misunderstand the 'mold in the air ducts' problem. They mistakenly believe that if you have a nice new house with high-quality ductwork, then 'mold issues' won't apply to them.

But the truth is that even if you have an up-to-date HVAC system with beautiful, expensive ductwork installed, mold can still be an issue. In fact, only two things are required for mold to start growing in your air ducts.

  1. Moisture in the air
  2. Warm temperatures

And if you've lived in Baltimore for any length of time, you know that the summer months (especially later in the season) tend to be relentlessly hot, humid, and balmy. It's not uncommon to see humidity levels of 75% or more in this area.

And this commonly leads to the development of mold, even in new homes with up-to-date HVAC systems (and shiny new air ducts to go along with them).

Mold in Air Ducts
Is Mold Affecting Your Health?
Is Mold Affecting Your Health?
Learn More

Signs of Mold in Air Ducts

How do you know if mold is growing in the air ducts?

Unfortunately, this can be a complicated question to answer. So let's go over the basics. Here's how to detect signs of mold in your home.

You Detect A Musty, Moldy Smell

This is usually the very first indication that you may have some mold growing somewhere in your home (and your air ducts are a likely spot to check).

You See Black Spots Or Dust Around The Air Vents

If mold is growing in your air ducts, it'll only be a matter of time before it starts to spread beyond the vents. In such cases, a visual inspection can quickly confirm your fears.

You've Experienced An Uptick In Allergy Symptoms

Sometimes, your sensitive respiratory system will detect the mold long before your olfactory senses do. If you start experiencing more 'allergy-like' symptoms than usual, then it may be time to investigate deeper to see if a mold infestation might be serving as the root of the problem.

Types of Mold in Air Ducts

There are various different types of molds that can infest your otherwise clean and beautiful air ducts.

Here are 8 of the most common types (along with a quick reference guide to identifying them visually):

  • Ulocladium: Rare but dangerous, this mold tends to be brown, grey, or black with the texture of suede or wool.
  • Stachybotrys: This type of mold is one of the easiest to spot because it really just looks like black spots.
  • Acremonium: This common type of mold looks like white powder.
  • Alternaria: This is another super common mold and a potent allergen. It usually looks green or brown in color and has a velvet-like texture.
  • Aspergillus: This type of mold can be difficult to identify due to the many different colors it can display. With that being said, it's most commonly seen in green, white, or yellow. It's highly allergenic and can cause pretty severe reactions.
  • Chaetomium: This common household mold has a cotton-like consistency, and is usually brownish in color. It produces mycotoxins that are dangerous to humans.
  • Fusarium: This type of mold tends to make its way into leaky HVAC ducts, and can look brown, yellow, or white with a wide range of consistencies. Thankfully, this is one of the 'less dangerous' types of mold-but it's still not good for you.
  • Mucor: This mold is highly toxic. It tends to look white or yellow and has a 'fluffy' texture. These mold colonies grow rapidly-and the inhaled spores are dangerous to humans.

How to Check for Mold in Air Ducts?

The fast and easy way to check for mold in your air ducts is to do a visual inspection of the vents. If you see mold in, on, around, or behind the vents, then you can be pretty sure that your ducts are filled with it as well. And if that's the case, you will need mold remediation for your air ducts.

With that being said - mold doesn't always show up visually near the vents - so if you are concerned about mold in the air ducts, a professional mold inspection can confirm whether or not it is a problem so you can act accordingly.

If you need a professional mold assessment and live in or near the greater Baltimore, MD area, contact us here at FDP Mold Remediation to get it checked ASAP. You definitely don't want this unseen invader lurking in your air ducts any longer.

The Negative Health Effects of Mold in Air Ducts

If mold is growing in your air vents, then your HVAC system is likely circulating the spores from that mold throughout your home every time it kicks on and blows heat or air through the vents.

This can cause a number of respiratory issues and moderate to severe health problems, including allergic reactions (according to Some of these reactions may include:

  • Sneezing
  • Nasal irritation and stuffiness
  • Throat irritation
  • A runny nose
  • Itchy/watery eyes
  • Headaches
  • Difficulty breathing

It can also have a serious negative impact on anyone within the home who suffers from asthma or seasonal allergies and can have a destructive impact on anyone who is immunocompromised.

Plus, mold in the home tends to be especially dangerous for infants, small children, and the elderly, making it more crucial than ever that you get your ducts checked on a yearly basis to protect yourself and your family from these invasive and toxic life forms.

Preventing Mold Growth in Air Ducts

Here are some steps that you can take to help prevent the buildup of mold in your air ducts.

  1. Replace your HVAC filters on a regular basis
  2. Try to keep excess moisture from making its way into your home
  3. Insulate your air ducts to reduce/prevent condensation
  4. Consider running a dehumidifier in your home if it tends to get really hot and muggy
  5. Fix any water leaks promptly
  6. Check, clean, and empty your HVAC condensation/drip pans on a regular basis

With all of that being said-unfortunately, there are some instances where you actually literally cannot prevent mold growth from occurring. You may be able to slow it down and prevent it to a certain extent, but here's the cold, hard truth of it:

If you have an HVAC system that includes ductwork of any kind, you're at risk for mold. And if you haven't hired a professional cleaning service to check/treat/remove the mold, then you probably already have some growing in your air ducts - releasing spores into the air.

Why Do You Need a Professional to Remove Mold from Air Ducts?

Here at FDP Mold Remediation of Baltimore, we've been hard at work removing mold from homes and residences since 2005. We've literally treated thousands of homes for mold-and if there's one thing we've learned, it's that most DIY mold treatment remedies end up failing.

And here's why.

The ductwork that runs through your home is hard to reach. There are crevices, turns, bends, and long stretches that are just nearly impossible to reach without the proper equipment. Plus, cleaning and removing the mold is a bit of a hazard in its own right, due to the fact that once you start stirring up those spores, they'll go airborne and put you at risk of inhaling them in a concentrated dose.

Thus, we always recommend that every residential homeowner with an HVAC ductwork system contact us at 410-401-8114 to help check for mold and remove it-quickly, easily, and efficiently.

Call FDP Mold Remediation To Help You Deal With Mold Today

The simple truth of the matter is that mold is super bad for you-and it shouldn't be allowed to make a permanent 'home' in your home. You deserve fresh clean air and a mold-free environment. So contact us today at FDP Mold Remediation - and let's get rid of your mold problem once and for all.

What Is The Average Price for Mold Remediation Services?

The costs associated with mold remediation will depend on the size and scope of damage inflicted upon an area. To best assess costs associated with remediation, professional mold inspectors can take samples for testing as part of an assessment to identify the type of mold present and the extent of contamination.

Overall, mold remediation costs range from several hundred to several thousand dollars; but their expense should be seen as worthwhile if protecting both your health and home is important to you.

Reach Out for Expert Mold Services Now

If you suspect mold infestation in your home, acting quickly to stop its spread and subsequent health concerns is of the utmost importance. Contact FDP Mold Remediation of Baltimore immediately for professional mold services to ensure the air in your house remains safe for you and your loved ones.

Jacob Smith

About Author

Jacob Smith is a mold remediation expert at . He has over twenty years of experience in the field and likes to write about mold when he is not remediating this fungus from someone's home or facility.

Jacob's Facebook Page
About author

Mold Remediation IICRC Certified
Mold Remediation IICRC Certified
Choose fdp mold remediation with confidence
  • IICRC Certified Mold Remediation
  • Rebuild done by licensed contractors
  • Full Service solution, Inspection, Testing, Remediation
  • Clear communication from quote to completion
  • We finish on time and on budget
  • Applied Structural Drying Technician
  • Water Damage Restoration Technician
  • Applied Microbial Remediation Specialist
  • HEPA-Filtration Units
licensed, certified & insured mold remediation specialists
IICRC Certified
EPA Certified