Aeroseal Duct Sealing in Cincinnati, OH

Ductwork that runs through unconditioned spaces can account for significant energy loss. The exact percentage depends on your ductwork’s age, condition, and location—ducts in an uninsulated attic lose more than ducts in a conditioned crawlspace. A professional duct leakage test quantifies your loss and shows you how much efficiency Aeroseal can restore. Many homeowners are surprised that sealing ducts delivers a bigger comfort and efficiency gain than a furnace or AC upgrade alone.

Yes. Aeroseal sealant is a water-based, non-toxic compound approved for use inside occupied homes and commercial buildings. It contains no harmful chemicals, VOCs, or odors after application. The sealant is inert once cured and poses no risk to children, pets, or anyone with respiratory sensitivities. Our technicians follow all manufacturer safety protocols during application, and the sealant is completely safe once sealing is complete.

Not negatively. Sealed ducts actually improve air filter performance. By eliminating leaks in return-air ducts, sealing stops unfiltered air from bypassing your filter and entering the system. This means your filter catches more of the air that flows through it and stays cleaner longer. You may notice your air filter lasts longer between replacements after duct sealing.

Aeroseal can seal virtually all ductwork, including return ducts, supply ducts, and branch lines in walls, attics, and crawlspaces. However, ducts that are severely damaged, completely inaccessible, or require structural repair may need manual patching in addition to or instead of Aeroseal. Our assessment will identify any ductwork that cannot be sealed with Aeroseal and recommend alternative solutions.

A typical residential Aeroseal duct sealing project takes 4–6 hours, depending on the size of your ductwork system and the extent of leakage. We’ll give you a more precise time estimate during your assessment. The process includes initial testing, preparation, sealant application, final testing, and cleanup—typically all completed in a single scheduled visit.

Often yes. Leaky ducts produce hissing, whistling, and rushing sounds as pressurized air escapes through holes and cracks. Once Aeroseal seals those leaks, those noises usually stop completely. Your system will run quieter, and air will flow through your ducts and into rooms more smoothly, with less turbulence noise.

Aeroseal sealant is designed to be permanent. Once cured, it hardens into a durable layer that seals duct leaks and does not degrade with age or temperature cycling. However, if you damage ducts after sealing (impact, crushing, new holes), those new leaks will not be sealed. Our workmanship is warranted, and we stand behind the durability of every seal.

After Aeroseal sealing, your ductwork requires no special maintenance. Keep your air filter clean and changed on schedule—this protects your system and ensures airflow remains optimal. If you notice new air leaks, noises, or performance issues, have a professional inspect your ducts to identify any damage. Most maintenance needs are handled through routine HVAC system tune-ups, which we recommend annually.

Duct replacement and reinsulation are much more invasive and expensive than Aeroseal sealing. Replacement requires cutting open walls, attics, and crawlspaces, removing old ducts, and installing new ones—a months-long project with significant restoration costs. Aeroseal seals existing ducts from the inside in a single day without demolition or reconstruction. For most leaky ductwork, Aeroseal is the most practical and cost-effective solution.

Yes. Duct sealing often works best alongside complementary upgrades: air filtration systems improve indoor air quality by catching pollutants that once entered through leaky returns; furnace or AC maintenance ensures your system is operating at peak efficiency so sealed ducts deliver maximum benefit; and a Preferred Customer Plan keeps your entire HVAC system running smoothly year-round. Our technicians can recommend the combination that makes the most sense for your home.