Image for blue and red swoop graphic

What Is Aeroseal and Is It Right for Your Ducting?

By Aztil –

Image for What Is Aeroseal and Is It Right for Your Ducting?

According to the National Renewable Energy Laboratory (NREL), HVAC air ducts can lose up to 40% of an HVAC system’s heating and cooling energy. This remains true even when air ducts are relatively new and well-maintained. Duct sealing cuts these losses by eliminating air leaks. Although mastic sealant and duct tape are certainly advantageous to this end, nothing trumps the efficacy of Aeroseal. Hailed by the United States Department of Energy (DOE) as one of the best technological and scientific advancements since the DOE’s inception, Aeroseal can reduce duct-related energy waste by as much as 30%.

What Is Aeroseal?

Developed in 1994 at the Lawrence Berkeley National Laboratory and comprised of the same materials used in chewing gum and pacifiers, Aeroseal is a completely non-toxic and high-performing duct sealant that HVAC companies install via air vents. It adheres to cracks, gaps, and other air leaks in duct materials measuring just 5/8″.

After injecting Aeroseal into ducting, HVAC technicians pressurize air ducts to draw Aeroseal toward air leaks. When it reaches structurally compromised areas, it forms tight, impenetrable seals that could last for up to 40 years. Given that the average lifespan of HVAC ductwork is just 15 to 20 years, a single application of Aeroseal is more than sufficient.

What Are the Benefits of Using Aeroseal?

Aeroseal outperforms both duct tape and mastic sealants by forming a surer and longer-lasting bond. Duct tape adhesives tend to fail over time as ducting collects dust, oils, and other debris. Mastic sealants must be paired with fiberglass mesh tape to ensure lasting success. Not only are mastic sealants messy,  but they aren’t easy to apply in all areas.

Comparatively, Aeroseal offers the least invasive installation method and the best overall results. With Aeroseal, you can seal leaky ducts in remote, hard-to-reach locations such as basements, attics, and crawlspaces. You can also treat concealed ductwork without having to cut into drywall or remove other structural barriers.

Save Money

With Aeroseal, more of the heated and cooled air that your HVAC system produces will be distributed throughout the building. Not only will this lead to lower energy bills, but it can also extend the lifespans of heaters, air conditioners, heat pumps, and ducting. It does so by limiting stress throughout HVAC systems and optimizing airflow. You’ll pay less for HVAC repairs throughout the years, and you’ll have more time to plan for HVAC replacements.

Improve Indoor Air Quality

Leaky air ducts allow conditioned air to escape. However, they can also take in air from dusty areas and distribute it. This is the air that never passes through your HVAC air filter, and it often comes from crawlspaces, attics, and other dirty, mold-prone areas. Aeroseal will boost your indoor air quality (IAQ) by ensuring that all of the air routed throughout the building has had dust, lint, hair, carpet fibers, and other common airborne particulates removed.

Enjoy Greater Home Comfort

By optimizing airflow, boosting IAQ, and supporting efficient HVAC performance, Aeroseal can also improve your home’s comfort. You won’t have to contend with hot and cold spots throughout your home or business when leaky air ducts aren’t depositing conditioned air in your basement, behind your drywall, or in other remote locations.

Is Aeroseal Right for Your Home or Business?

Aeroseal is the top choice for duct sealing in both residential and commercial applications. Sealing your air ducts with Aeroseal will result in immediate and ongoing energy savings. It will also improve residents’ comfort, improve your indoor air quality, and increase the service lives of all your HVAC equipment. To find out more about this innovative technology or schedule an appointment, get in touch with Aztil today.

Request Service

What Our Clients Think Of Us


He was a great technician!
Nico was great! He went above and beyond for us!
Excellent customer service. My technician, Niko, was very knowledgeable and walked me through all of my AC issues.
Antonio was awesome, got their membership deal, worth it for AC repair and maintenance. He fixed the problem quick and was efficient. Great experience, thank you
niko is so great and professional!
Nicholas Garza was pronto didn’t even have to wait!!!! Took care of business and cooling off🥰😎😊😉
Niko was fabulous as usual. He took a good amount of time to talk with us about our AC
There are some problems to be resolved and Niko explained the options
We appreciate his time and efficiency
Niko did a great job , rate him a 10
Nico did a great job with my AC units.
Niko was very knowledgeable and helpful!
Paul Gross was my technician. He was extremely knowledgeable and friendly. Called before he showed up and really helped my family and I out. More guys like Paul!
Nikko did great tune up service on our Unit and has great customer service skills.
my apartment is cold. Lazaro is a greagt guy.
Niko. Excellent work
Nino did a ac tuneup, spent the time to check everything and even changed the thermostat batteries for me.
Response from the owner:Hi Marci, thank you for your kind words! We're so glad to hear that Niko did an excellent job and that you were pleased with the outcome. Thank you for being a valued customer.
Nico Garza came to do AC maintenance. He was professional, courteous & great at his job. Highly recommend & will request him in the future. Its time for him to have a 5.0 rating.
Response from the owner:Hi Robyn, thank you for your kind words! We're so glad to hear that Michael did an excellent job and that you were pleased with the outcome. Thank you for being a valued customer.
Contract maintenance call was done by a very professional service technician Niko. Would recommend his service to anyone. No cost
Great service Juan was wonderful keeping me informed and solves the problem so pleasant
To work with thank you Juan
Niko was very professional, diligent & thorough with cleaning all of the air vents throughout my home. He was also on time and made sure to clean up any mess that was left behind.
Response from the owner:Hello. We're so glad to hear that Mr. Ricardo was professional, diligent, and thorough with cleaning the air vents in your home. We take great pride in ensuring that our customers have a positive experience with us, and we're glad to hear that Mr. Ricardo was on time and left your home clean. Thank you for your review!
We have been using Aztil for more than 10 years, and are quite satisfied with their prompt service. In the last service call, Ramon Serpa did a great job.
Niko- he was very polite, respectful and got the job done right away. He even put back the closet folding door which we would have not been able to put back. Clean job.
Great Guy! Explains everything very well! Good employee's are hard to find and he is one of them!
Skyler did an excellent job with the duct cleaning. Thank you so much for your service.
Just wanted to express my appreciation for the fantastic service provided. Niko (Service Tech), did a fantastic job! He was professional and respectful. He's a great asset to your team.
I would recommend this company Dana was great he helped fix the ac. He came and it was a one day fix and we are cool as cucumbers again! Thank you! He worked are and got the job done.
Niko serviced my a/c this afternoon and did an outstanding job. I believe he went above and beyond my expectations. Ask for Niko, you won't be disappointed.
Nico. Very professional!
Niko was very nice and professional and patient.
Niko very efficient would like him to come here for all future calls
Niko. Excellent job. Aztil is fortunate to ha him in their employ. Thank you! Under contract
Niko. Excellent service. Request he return for next 6 month maintenance visit
Niko was very knowledgeable and helpful.
Technician Dana was very professional. He had the new A/C replacement motor ready in a few minutes and left everything clean and working.
Dana was excellent! Very prompt, very efficient and very informative.
He went above and beyond - very nice man.
Rafael was Great!
Dana came to do repair of a leak. He was friendly, efficient, answered my questions patiently and seemed to take care in the quality of his work
Dana was great! He did a very thorough inspection and cleaning out of all my equipment. He also explained everything well and was very professional and courteous. The AC is working great now and we are very happy!
Michael King did an excellent job serving my air conditioner. He is very efficient and customer service friendly. I will request him in the future.
Michael was awesome!
We had Lee come out to do an AC check, Nick to come out to do repairs and two young men to do air duck cleaning. I want to say that they all were very punctual, respected out time, courteous, polite, explained what they were going to do before doing it, efficient, cleaned up after themselves and thanked us for the business. I will highly recommend Aztil to anyone that needs service.
Response from the owner:Judy Amling, thank you for your kind words and for taking the time to share your experience with us. We truly appreciate your positive feedback and are so glad to hear that our team provided you with the quality service you deserved. We look forward to assisting you with all of your air conditioning needs in the future. Thank you for your support!
Tino from Aztil just came. He was very professional and knew what he was doing. I have complete trust in him I would recommend him highly.
Alex was very knowledgeable and professional.

Join The Club

Request more information by filling out the form below to learn about our Elite Cool Membership Program.

Highlights of the Elite Cool Membership Program include:

  • Members will receive priority service: Get top priority when scheduling service calls.
  • No overtime charges: We’re here for you anytime, day or night, 365 days a year, without any overtime charges.
  • A 15% member discount: Receive a 15% preferred discount on repairs not covered by the manufacturer.
  • Two maintenance calls per year: Benefit from two maintenance calls per year, spaced about six months apart.
  • AND MORE!

Need more information? Click below to call now!

Call Now

Our Partners


  • Carrier logo
  • Honywell logo
  • Mitsubishi Elctric logo
  • York logo
  • American Standard logo
  • Amana logo
  • Trane logo
  • Rheem logo
  • Ruud logo
  • Daikin logo