Aeroseal Duct Sealing in Seattle
Improve Efficiency & Comfort with
Aeroseal Duct Sealing Technology
Home building standards have improved the integrity of ductwork in the last 15 years, but it’s estimated that leaky ducts still cost American homeowners $25 billion dollars each year. Fortunately, there is a simple way to effectively seal ductwork, keeping hot or cold air inside your home and dollars inside your wallet.
How Does Aeroseal Work?
Aeroseal is a technology that works from the inside out, moving through the entire system of ductwork, filling minor holes and leaks as it goes, similar to Fix-A-Flat for punctured tires.
- Ducts are sealed off and air is pumped into the ductwork, pressurizing the system.
- Aerosolized polymers are released into the vents.
- Any small leaks that exist begin to release air, pulling the aerosolized polymers towards the leaks.
- The polymers build up in cracks and crevices, filling all holes from the inside.
- Throughout the process, technicians monitor the reduction in duct leakage in real-time.
Noticeable & Measurable Improvements
Brennan Heating & Air Conditioning runs a duct leakage test before and after every duct sealing. The resulting Certificate of Completion quantifies the amount of air leaking from a home’s ductwork. This test-in, test-out approach ensures measurable returns on each homeowner’s investment. While improvements in the 15-20% range are most common, Brennan has been able to reduce leakage from 40% down to less than 5%!
Improve Indoor Air
Ductwork resides in basements and crawl spaces, where dust and musty odors can infiltrate a home through duct leaks. Poor ductwork can cause health issues as dirty air circumvents filters located within HVAC equipment. Homeowners with ductwork that has been sealed with Aeroseal describe their indoor air as odorless and notice decreases in dust accumulation.
Rebates & Tax Credits Available for Aeroseal
Qualifying homeowners who seal their ducts with Aeroseal can earn up to $1,250 in rebates. Talk to your Brennan comfort specialist for more details.
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“I had Brennan come today to clean my air ducts. Since this was the first time having it done, it was reassuring to know it’s a pretty simple & fast process, and totally affordable. You're always in good hands with them.”- Sandy M.
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“Brennan Technician knew how to test the safety system and repair it. They had the parts on the truck and fixed it in half an hour. Service visit and repairs came to about $300. Part was under warranty after nine years.”- Mike D.
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“Steven was very knowledgeable, polite, and considerate. Gave me a complete review of what he did and things I might consider in the future. Love Brennan AC services and plumbing too! Had a water heater installed by this company last week!”- Robert B.
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“The install team was great. They were all experienced and really enjoyed their jobs, and it showed. I love our new Carrier 38MURA hvac system already, and it's not even hot out yet.”- Melissa R.
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“Bryan & Michael arrived early as I requested and worked hard to clean the furnace vents, returns, and ductwork, including the dryer vent. Our daughter had recently used Brennan & recommended the company. I am delighted with the results.”- Janie H.
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“The service was extremely professional, courteous, respectful, and knowledgeable. We loved Dakota & Brian!”- Lloyd N.
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“They showed up the next day and were very professional and efficient! Scott and Vince were quick, and I really appreciated their help. I live nearby, so I'll definitely be calling this place for future electrical stuff”- Jason F.
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“The technician arrived first thing in the morning. Dakota was friendly, knowledgeable, and repaired our air conditioning system within an hour. He explained in detail what the problem was and answered our questions well.”- Barbel G.
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Smarter, Safer, & More EfficientFrom high-efficiency HVAC installs to LED lighting upgrades and surge protection, we’re here to improve the way your home feels—and functions—year-round.
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Award-Winning CareMulti-year Angie’s List Super Service Award winner with an A+ BBB rating, Brennan is Seattle’s trusted partner for top-tier heating, cooling, and electrical services.
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Integrity Meets InnovationFrom certified energy consultants to licensed electricians, our team brings you forward-thinking solutions backed by time-tested values of honesty, reliability, and expert care.
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Trusted Since 1987With decades of experience and thousands of satisfied customers, Brennan delivers worry-free heating, cooling, and electrical solutions with service you can count on.
