How to Keep Your Air Conditioning Ductwork Clean

Air ducts can accumulate dust, mildew and mold growth, and other waste. The contaminants are then recirculated throughout the home. If your allergies are getting worse, or you notice an unpleasant odor, it could be the time to schedule a clean.

Sheet metal ducts promote energy efficiency since they are sturdy and virtually completely rustproof. Flexible aluminum ducts are suitable for use in tight spaces and are affordable. However they are prone to pest damage.


Leaks in ducts can cause the conditioned air to escape and this can reduce the energy efficiency of homes. Leaks are most common at the point where duct segments meet in particular at joints. The ducts can become loose and separate over time due to age gravity, gravity and other elements. The sealing of these connections using metal tape or mastic will aid in preventing air loss However, it is recommended to employ an HVAC professional to complete the repairs and to seal the ducts.

You can check for indications of leaks in your ducts by performing an inspection in your basement, attic and crawlspaces where runs of ductwork are exposed. Look for areas of ducts which are kinked, crushed or twisted. This could indicate an obstruction that needs to be sealed. Check to see whether the joints or seams are warm. Be aware of any whistling noises when the HVAC system is running. If you hear these sounds, leaks in the duct could be present in that area.

Another common sign of leaky ducts is the presence of hot or cold spots within the house. Because air leaks deprive the HVAC system of its ability to cool or heat certain rooms, this could explain why those spaces are difficult to maintain the same temperature.

The ductwork’s gaps can allow dust to circulate throughout the building even if household activities aren’t changing. They can cause asthma and allergies in family members through the circulation of dust mites, mold spores and other allergens in living spaces.

Leaking ducts can release toxic fumes and dust into the living area. If you store pesticides or paint thinners in your basement, for example, leaking ductwork can send these chemicals into your living space and expose your loved ones to fumes. This problem is especially dangerous for children or elderly people living in your home. Installing an indoor air monitor will detect these fumes, and warn you of their presence.

High Humidity

In humid and hot environments like Florida, air conditioning ducts are more likely sweat than they should be. This is a serious issue because sweaty ducts allow excessive moisture into homes and cause mold growth and poor air quality. Fortunately, there are many ways homeowners can reduce humidity and ensure that their ductwork is dry.

First, reduce the amount of water you use in your home. Reduce the amount of water you use to cook, bathe and aquariums. In humid areas, homeowners should utilize a dehumidifier in order to make their homes drier.

It is also crucial to regularly check the ductwork for signs of mold or other problems. Professionals should clean and seal the ducts in the event of issues.

Another common problem with ductwork is leakage. This is typically because of joints that have been installed incorrectly or seals that can cause cracks and gaps. This is prevented by using top-quality metals and making sure that all joints and connections have been correctly installed.

Air ducts are made of different materials. Each kind has its own unique characteristics that can influence the performance of these ducts. Polyester air ducts are most affordable, however they have the shortest lifespan and are more susceptible to being damaged by pests and the elements. Aluminum ducts are more expensive but last longer and can resist insects.

Airflow can be impeded by objects such as furniture, toys and other objects. The blocked ducts can impact the airflow and energy efficiency of your system.

A blocked duct can also result in uneven heating and cooling, which can be a significant issue in older buildings with poorly constructed ductwork.

A homeowner who suspects they are experiencing issues with leakage or humidity should contact a HVAC service. The expert will evaluate the ductwork and recommend any repairs or replacements needed. It is essential that the ductwork is easy to access, since this can affect how quickly the technician can get to work and also the total cost of the job.


Moisture and warm temperatures can create mold to develop in air conditioning ducts. The moisture comes from condensation on the inside of the air ducts which creates a humid atmosphere where the spores of mold thrive. The spores can then be transported throughout the home through your HVAC system and cause allergic symptoms in household members.

The visible signs of mold around air vents is an indication that you must engage an HVAC professional for an AC cleaning. Dust particles that are black can be a sign that mold is growing. If the area appears slimy or wet, it’s a clear indicator that there is a serious problem. If there is a musty scent, this is also an indication of a mold spore.

Mold can also be identified by torn or ripped air insulation for ducts, rips on vent covers, rodent droppings, and cockroach shells. If the mold issue is serious, you could see rotting wooden and sliding metal.

The most popular type of mold in air ducts is Stachybotrys that can result in toxic mold. It is usually found on drywall and wood surfaces, but it can also be found in the spaces between the rafters and walls of your home. Stachybotrys can lead to allergies, irritation to the eyes nose and throat, and respiratory problems.

Symptoms of mold in air ducts include wheezing, coughing and shortness of breath. Symptoms can be more than in children and the elderly. Mold in air ducts can also cause nausea, headaches, and fatigue.

It is advised that homeowners avoid attempting to clean large areas of mold. The safety concerns are the reason. Mold spores are quickly spread across the air and are difficult to get rid of when they begin to grow. There is also no guarantee that the home owner has successfully removed all the mold and prevented it from resurfacing. A professional can safely remove the mold from the air ducts and make sure that it doesn’t come back.

The best way to avoid mold in air ducts is to make sure that the air filters are cleaned frequently and that the ducts are cleaned once every couple of years. These steps can help to keep moisture and condensation out which can promote the growth of mold.


Allergies can disrupt your summer activities, leaving you with itchy, runny eyes and a general sense of discomfort. Keeping your home allergen-free is a crucial aspect of fighting allergies. Moreover, the air conditioning ducts in your home can be a breeding ground for the things that cause your symptoms.

Pollen, dust mites mold spores and pet dander are the most common allergies triggers. These particles can be tracked in to your Fridley home through shoes or clothing, and then spread throughout your home by your HVAC system. Leaks in your ductwork can allow these particles to pass through, and they’ll be circulated throughout the house.

The best method to fight these allergens is to do a thorough cleaning of your air ducts. A professional duct cleaner can remove these particles, helping you breathe more easily and ward off your allergies.

A duct that is dirty may also harbor bacteria. Bacteria can cause illness and worsen allergy symptoms, especially those who already suffer from allergies. The bacteria can be spread when air passes through your ducts and the vents of your home.

When ducts are dirty, bacteria can build up within them, and later be circulated throughout your home when the air conditioner is on. This can cause respiratory problems and can cause more serious illnesses in certain cases.

Many people, particularly in the spring and the early summer months are able to bring allergens like pollen, mold, and dust mites into their homes on their clothes and shoes. These allergens are likely to be deposited in areas that won’t be disturbed until the following spring or summer. The air ducts are an excellent illustration. If they’re not cleaned regularly, allergens could remain in the vents until your cooling and heating system is turned on.

Dirty air ducts are an issue for homeowners. They can lead to higher energy bills and uncomfortable living conditions. Aeroseal can assist you in avoiding these issues by cleaning your ducts regularly and sealing any leaky ones. Aeroseal technicians apply a sealant that is pressurized to prevent air from getting through ductwork that is leaky.

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