Aeroseal is a patented duct sealing technology designed to fix leaks in heating, ventilation, and air conditioning (HVAC) ductwork from the inside out. Instead of manually sealing ducts with tape or mastic, Aeroseal uses a computerized process to inject an aerosolized sealant into the duct system, which then locates and seals leaks—even in hard-to-reach places.

Here’s how it works:

1. Preparation – The duct system is temporarily blocked off and pressurized.
2. Injection – The Aeroseal machine blows microscopic sealant particles into the ducts.
3. Sealing – The particles are carried by airflow toward any leaks, where they accumulate and seal the gaps (up to 5/8″ wide).
4. Verification – A computer measures leakage before, during, and after sealing to provide a printed report showing the improvement.

Benefits of Aeroseal

• Energy Savings: Sealing leaks prevents conditioned air from escaping, which can lower heating and cooling costs by up to 30%.
• Improved Comfort: Rooms maintain more consistent temperatures with better airflow.
• Healthier Air: Seals leaks that let dust, allergens, and pollutants into the ducts.
• Safety: Reduces the risk of “backdrafting” (where combustion gases from appliances are drawn back into the home).
• Verified Results: You get a before-and-after leakage report.

It’s widely used in both residential homes and commercial buildings to boost HVAC performance and indoor air quality.