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Answering Frequently Asked Questions About Aeroseal


The HVAC industry is ever-evolving and finding new technologies that make our living environment more comfortable. One of the most recent innovations is Aeroseal, a duct sealing method that is strong enough to seal your ductwork to provide a full-proof solution to the cracks in your ductwork system. Because it is a very recent development that we recently started offering to our customers, we are naturally getting a lot of questions about it. Thus, we are answering the most frequently asked questions about this new HVAC service.

What is Aeroseal Made of?

Aeroseal is made using an organic compound called vinyl acetate polymer. It is very safe, non-toxic, and will not harm people or animals. In fact, many hospitals have opted for Aeroseal, including Mayo Clinic and others. If these hospitals feel at peace with Aeroseal, you can trust that it will be safe for your home too. 

How is Aeroseal Applied?

Aeroseal requires several steps for effective sealing. Below is a brief overview of the steps you can expect your HVAC service tech to follow when it is time to apply Aeroseal in your home. 


Before the actual application of Aeroseal, the technician will go thoroughly clean any dirt and debris from the ductwork. This will ensure that the sealant adheres properly to the ducts.


When the ductwork is prepared, the actual process of the Aeroseal duct sealing service will begin. The first step is to seal off all but one register and vent. The unsealed register will be the opening where the Aeroseal will be administered. 


After the vents have been sealed, your HVAC service tech will increase the pressure of the ducts enough for all cracks and gaps to make themselves known. 


As the pressure levels are increased in the ductwork, a special computerized system will be inserted into the open register. This machine will carry the Aeroseal and apply it to the cracks and gaps. 


After the application, the Aeroseal will need to be given time to set and cure. Usually, this takes several hours. 


After the cure time is up, your HVAC technician will run a test using the computerized system to ensure that everything has been sealed appropriately. 

What is the Average Price of Aeroseal?

The average price of Aeroseal is $2,500 to $3,200. The total cost you pay will depend on the size of your home and ductwork. 

Can You Apply Aeroseal Yourself?

Based on the process of applying Aeroseal as outlined above, we recommend you leave this project to the pros. Each step of the service requires professional equipment and training to ensure that it is done appropriately. When you hire a HVAC service for your needs, you can trust that your ductwork will be carried out with the following:

Expertise & Training

HVAC technicians are required to go through a certain amount of hours of ongoing training to ensure they stay up to date on knowledge and licensing requirements. They are trained experts in providing quality Aeroseal services. 

Proper Equipment

Aeroseal requires very specialized equipment that not every homeowner can access. But beyond the problem of having the equipment, one must also know how to use it. Our trained HVAC technicians not only have the proper equipment, but they are also experts in its use. 

How Long Does Aeroseal Last?

On average, Aeroseal is expected to last for 40 years in a residential home. All applications are provided a 10-year guarantee because the sealant is tested and proven for its durability and effectiveness. 

Leading HVAC Services for all Your Aeroseal Needs!

Have you been considering Aeroseal duct sealing services for your home? Contact CM Heating today to access the most knowledgeable and skilled technicians to provide you with a job well done. 

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