Image for blue and red swoop graphic

Maintain a Healthy Indoor Air Environment With Aeroseal to Prevent Mold

By Aztil –

Image for Maintain a Healthy Indoor Air Environment With Aeroseal to Prevent Mold

Mold is a fungus that harms any indoor environment, including homes and commercial buildings. Microscopic mold spores build up in a warm, dark, humid environment. Homes and commercial buildings throughout the south, from Florida to Virginia, are perfect breeding grounds for mold, mildew, and other microscopic pathogens that can enter through cracks and tears in your ductwork. They blow into rooms through the return air ducts in the HVAC system, compromising a healthy indoor air environment.

There are more than 30 species of mold and mildew. These particulates, dust, and pollen are not always trapped in the filter systems.

You can breathe mold spores, dust, and other pathogens without being aware of the damage this irritant is causing in your body until you experience symptoms.  Some reactions to mold inhalation are similar to dust and pollen allergies.

  • sneezing
  • coughing
  • asthma attacks
  • chest congestion
  • difficulty inhaling
  • eye irritation
  • skin rashes

In addition, you can often smell the musty mold. You can see slimy black mold growing on walls in rooms where it has not been prevented.

Kitchens, bathrooms, and other rooms with a high moisture content are subject to mold growth. This includes basements, and garages as well as interior walls. Be vigilant in many areas of your home to prevent mold growth. It is easier to control if your HVAC system has sealed air ducts.

Mold Prevention

Aeroseal seals air ducts with precision in residential and commercial heating ventilation and air conditioning (HVAC) systems to maintain a healthy indoor air environment. This prevents mold spores and other pathogens in the air, along with excessive moisture, from entering the ductwork. Aeroseal seals the tiniest tears in ducts that can allow moisture and spores to penetrate. It can reach even inaccessible sections of the ducts.

The science behind Aeroseal’s efficiency is based on fluid dynamics. Pressurized airflow propels the aerosolized sealant particles through all ducts. The sealant automatically fills in any tears or breaks in the duct surface. The sprayed sealant also provides a moisture barrier in the ducts, as it closes off these areas.

Protection for HVAC systems

Sealing ductwork protects the HVAC system from deterioration, as well. Invasive humid air that supports mold growth on the walls of ducts can ruin them, and they have to be replaced. In addition, the system with mold buildup in ducts must work harder to heat or cool rooms. This consumes more energy.

Ducts in commercial buildings are much larger than home HVAC systems. A small leak in one area of the ducts can cause mold, dust, and other particulates to spread throughout a building, compromising a healthy indoor air environment. It is often difficult to locate the source of the leak.

Keep drip pans in commercial air conditioning systems clean to prevent mold from growing in this damp area. Mold spores spread through an HVAC system with cracked or torn ducts can find a comfortable place to grow in a room, especially a damp basement, with a drip pan.

Mold can spread quickly in a damp environment to ruin walls and floors. Professional mold remediation is necessary to clean this area before the mold is carried back into the HVAC system, where it can spread to different rooms. Trained mold removal professionals wear hazmat suits to clean extensive mold from walls and floors!

Keep Ductwork Sealed

Aeroseal is a sustainable way to keep your HVAC ductwork sealed and clean in both commercial and residential buildings. Take a proactive approach to prevent mold and moisture buildup.

Contact us to find the HVAC service company near you to apply Aeroseal to your ducts. A healthy indoor air environment is necessary for good health.

Request Service

What Our Clients Think Of Us


Michael did a great job! Thanks.
Thanks to Nico who did a great job today with our maintenance plan. When we had a repair issue in the past, Cody also did a great job helping us and also assisted us with our FPL surge claim
ANTONIO was reference as a Sr. Tech by Office Staff. When He arrived at my home he was immediately very professional and demonstrated that he was competent to do the heater replacement. I would request Antonio to do future service calls.
Response from the owner:Hi Leah, thank you for your kind words! We're so glad to hear that Aztil did an excellent job and that you were pleased with the outcome. Thank you for being a valued customer.
Excellent. Albert Rod. I excellent.
Juan Ortega was sent to my home to remedy my AC problem. He diagnosed the problem after about 10 minutes of testing and had it repaired shortly thereafter. He was professional, kind & compassionate. Thanks Juan!
Ramon is very kind and very knowledgeable!! He always shares information and always answers all of my questions. Thank you Ramon!!
Jordan and Jalen performed the aeroseal and Juan did an excellent job
Jorge Rivera was the technician that installed our new air conditioner unit. He was promo courteous, and did an excellent job installing our unit.
Rafael and Asiel installed my new A/C today. They were super. Everything went as planned. I am a happy camper.

12/5/25 Alex came for tuneup and fixed thermostat problem. Wonderful experience. 5 stars.

12.29.25 Alex came to fix a/c thermostat wiring problem. A/C did not put out heat. He fixed within 5 minutes. 5 stars.
Response from the owner:Hi Cihrhh, thank you for your kind words! We're so glad to hear that Rafael and Asiel did an excellent job and that you were pleased with the outcome. Thank you for being a valued customer.
Paul is an amazing tech he came on time completed the project and my house is cool again. I have been with Aztil for 18 years and only have good things to say and Paul is amazing.
Mr. King was amazing. Professional, clean and courteous.
Antonio Moreno is Excellent! Professional, courteous and caring.
Best part of Aztil- our service tech Antonio, Nick, and Dana!! Such a professional and kind young men. Thanks!!
Michael King was an EXCELLENT service technician. He was very polite and was able to pinpoint the problem. He was not trying to pressure us to get anything done other than the issues we were having. We have been with Aztil for over 20 years servicing both of our homes and having Michael as our technician by far has been the best experience.
Aztil always comes through even at the last minute. Their technicians are very knowledgeable and respectful and even took out my old filter to the dumpster!! Thank you
Elder was terrific. Knowledgeable and efficient
A pleasure to work with
Jordan Jalen were here and I was impressed by their performance and professional attitude. Thank you and have a great Holiday🎄
Niko was extremely helpful solving our emergency…The capacitor stoped working!!
Very good. Lazaro was courteous and professional.
Dana is a great Technician. He is very knowledgeable and personable in addition to being extremely thorough. He did my A/C check up and kept me informed as he proceeded through the process. Very pleased with Aztil and have always been very happy with their technicians and sercvice.
Response from the owner:

Dear Richard Grossman,

Thank you for your glowing review! We're so glad to hear that you had such an excellent experience with Lazarro and Antonio. We pride ourselves on providing top-notch service and are thrilled that you have chosen to sign a 5 year contract with us. We look forward to continuing to provide you with the best service possible.

Thank you again for your kind words.

Sincerely,
AZTIL
The gentlemen that came to replace my air conditioner were very friendly and pleasant. I was pleasantly surprised at the speed and efficiency at which they worked. Jorge Rivera did a great job and I will commend Aztil Air to everyone. Thank you.
Dana was great on time very professional
Paul is friendly and kmowledgable
Response from the owner:Hello Cheryl. Thank you for your feedback. We appreciate your business.
Our AC just crapped out on a Sunday morning. We called and Dana was in contact with us immediately. He called, we gave him a brief run down of the issue. He arrived promptly, was professional, found the issue, fixed it, tested the system and had us back up and running in about an hour. He also
let us know our service contract was expiring in a couple of months so we renewed it on the spot. We HIGHLY recommend them for your AC needs.
The service tech Cody did an excellent job doing the maintenance!! Very friendly and courteous, Highly recommend!
Response from the owner:Hi Chris, thank you for your kind words! We're so glad to hear that Ramon did an excellent job and that you were pleased with the outcome. Thank you for being a valued customer.
Technician Michael King was very thorough and friendly. He spent hours painstakingly explaining and figuring out why my air conditioning and heating unit wasn’t working until he solved the mystery.
Michaels amazing!!
Niko was pleasant, capable and informative. I’m greatful to have in service my AC unit.
Antonio was great, here on time and provided 6 month service- we renewed our contract for another year. A dollar a day is a great deal!!
From the moment Paul arrived, his professionalism and knowledge were on a completely different level. He carries himself with a level of expertise and integrity that you rarely see anymore. Paul doesn’t just do his job—he exceeds every standard of customer care, clarity, and skill.

Honestly, he’s so top-notch that he could be running his own company. The way he explains everything, answers every question with patience, and makes sure you fully understand your options is beyond impressive. You can tell he takes pride in his work, and it shows in every part of the experience.

Thank you, Paul, for setting such a high standard. Companies are lucky to have you—Darcy appreciates you more than you know!!! My husband and I We love Paul!
Elder was great 5 stars
Response from the owner:Thank you for your review, Lorraine. We appreciate your feedback and are glad that Kenneth and Nick were able to help you with your issue.
Antonio was early which was fine with me. He was very professional and personable, explained everything along the way.
And even finished up with the tune up to save me from having to make an appointment for the following day.
Response from the owner:Hi Walter, thank you for your kind words! We're so glad to hear that Michael and Skyler did an excellent job and that you were pleased with the outcome. Thank you for being a valued customer.
Antonio is awesome. Super helpful and friendly. Aztil is very responsive. Highly recommend. A+++.
Technician Elder did an excellent job
Elder was great!
Elder
Great job
Juan knows air conditioning 😊
He did diagnosed inside unit and outside unit and fix the problem 😊👍🏼👏🏼
Thanks to Aztil AC! Michael came out to service both of our units as part of their maintenance program. Outstanding service from start to finish.
Response from the owner:Hi Jake, thank you for your kind words! We're so glad to hear that Anthony and Lazaro did an excellent job and that you were pleased with the outcome. Thank you for being a valued customer.
Paul is hands-down the best AC technician I’ve ever dealt with! He’s incredibly honest, super knowledgeable, and genuinely looks out for his customers. When my unit started acting up, he took the time to explain everything clearly, showed me exactly what needed to be done (and what could wait), and didn’t try to upsell me on anything unnecessary. His prices are fair, he shows up on time, and the work is top-notch. It’s obvious he takes pride in what he does and truly cares about keeping his customers comfortable without breaking the bank. If you need AC maintenance or repair, call Paul—you won’t regret it! Highly, highly recommend.
Elder Great job recommending for anything
nico did a great job

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