Aeroseal vs Traditional Duct Sealing: Why Heat Pumps Expose Bad Ductwork Fast

Attic space with spray foam insulation on the walls and ceiling, visible ductwork, pipes, and a small window in the background letting in natural light.

Aeroseal vs Traditional Duct Sealing: Why Heat Pumps Expose Bad Ductwork Fast Summary: Heat pumps run longer and deliver lower-temperature air than furnaces, so duct leaks show up immediately as cold rooms, drafts, and higher electric use. Traditional sealing works when ducts are accessible. Aeroseal seals hidden leaks from the inside and often delivers bigger […]