• "I am Francis Pass. Thanks for visiting!"
  • 618-266-8086
  • "Always On Time...Or You Don't Pay A Dime!"
Duct Sealing in Carbondale, Marion & Mt. Vernon, IL

Duct Sealing in Carbondale, Marion & Mt. Vernon, IL

Independent studies show more than 90% of existing buildings in North America have leaky air ducts. In the United States, it is estimated that three out of every four homeowners lose between 20 and 40 % of the conditioned air in their duct systems through undetected leaks.

That means the chances are good that you could use some duct-sealing services from Pass One Hour Heating & Air Conditioning to make your home more energy-efficient. For the past four decades, our company has provided superior HVAC services for customers Carbondale, Marion, Mt. Vernon, Herrin, Carterville, Sesser, Benton, West Frankfort and other communities throughout Southern Illinois.

Our certified technicians will seal your leaky ducts with Aeroseal®, a technological breakthrough product with a 10-year warranty and a life expectancy of 40 to 45 years.

What is Aeroseal® & How Does it Work?

Aeroseal® is a patented duct-sealing technology that takes care of your leaky ducts from the inside out. It uses polymer particles to seal the leaks from within by allowing the particles to stick to the edges of the leak and eventually cover and close the leak. This is done with the following 6-step process:

  • Cover wall grilles and registers to ensure that air can escape only through leaks in your ducts.
  • Spray sealant into the ducts to locate and seal the leaks.
  • Keep the aerosol particles of the sealant moving and suspended in the airflow with constant air movement.
  • When air pumped into the ducts exits through a leak, the suspended sealant sticks to the edges of the leak and slowly builds up.
  • Leaks are sealed with very little sealant remaining in the ducts.
  • The ducts are checked with a computer-generated analysis to verify the success of the procedure.

The Importance of Duct Sealing

Sealing leaks in your air ducts is important because ignoring them will result in:

  • Higher energy consumption and higher energy bills
  • Uneven spots for cooling and heating
  • Poor air quality
  • Diminished property value
  • Increased chance for respiratory illness due to contaminants in leaky ducts

Schedule a FREE Estimate

Fields with (*) are required.

Pass One Hour Guarantees

Get peace-of-mind with a comprehensive array of guarantees from Pass One Hour:

  • 100% Money-Back Guarantee
  • Temperature Selection Guarantee
  • Exclusive “No-Lemon” Guarantee
  • Installation Workmanship Guarantee
  • Lowest Price Guarantee

Learn more [+]


When you are ready to address your leaky air ducts, our NATE-certified technicians will make your home airtight and allow you to start saving money on your utility bills. Pass One Hour provides up-front, StraightForward® pricing for your job. That's right: no hourly charge and no surprises on your bill when we finish the job! 

Count on Pass One Hour to Seal Your Air Ducts

When you are experiencing poor indoor air quality or higher-than-expected energy bills at your home in Southern Illinois, chances are good that you have leaky air ducts. To rectify the situation, your best option is to contact Pass One Hour Heating & AC at 618-266-8086 for an evaluation and seal those leaks ASAP.

208 Rushing Drive, Herrin, IL 62948