HVAC | Be green. Save green. | Building it Correctly | Home Repair Sealing My Ductwork With Aeroseal ByBen Hendricks December 29, 2016April 13, 2021 Aeroseal takes HVAC performance to a new level with its method of air-sealing your ductwork from the inside. Does it work? Is it worth your money? Read my full review of Aeroseal here.