How Can I Seal a Leaking Air Duct to Improve HVAC Efficiency?
You can seal a leaking air duct by using mastic sealant or metal foil tape on joints and seams. Do not use cloth duct tape because it fails over time. Insulate accessible ducts in attics, crawlspaces, garages, or unfinished basements. Reseal where vents and registers meet floors, walls, and ceilings. If bills are high or rooms are uneven, schedule a pro duct evaluation. In Depew and Buffalo, Emerald inspects ductwork during AC tune-ups and can perform duct-leak testing.
Updated: 2025-12-29
Need help in Depew, NY? Call (716) 216-5332 or book online.
Sources
- [0]https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURxanFETHVRRRAB!2m1!1s0x0:0x2f0de99ed9f745c1!3m1!1s2@1:CIHM0ogKEICAgIDqjqDLuQE%7CCgwIovKjqAYQ-IbQ8wI%7C?hl=en-US
- [1]https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21kU1RXNXBRMDFMYkcxU1RHdENjemRyU2kxTlZuYxAB!2m1!1s0x0:0x2f0de99ed9f745c1!3m1!1s2@1:CAIQACodChtycF9oOmdSTW5pQ01LbG1STGtCczdrSi1NVnc%7C0dEgMO_oVqO%7C
- [2]https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNkdkstV29BRRAB!2m1!1s0x0:0x2f0de99ed9f745c1!3m1!1s2@1:CIHM0ogKEICAgICdvK-WoAE%7CCgwIqrKvrgYQqJrX0QI%7C?hl=en-US
- [3]https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURtdkxhWlB3EAE!2m1!1s0x0:0x2f0de99ed9f745c1!3m1!1s2@1:CIHM0ogKEICAgIDmvLaZPw%7CCgwIz7eujwYQuMbhjAI%7C?hl=en-US
- [4]https://www.emeraldheating.com/heating/furnaces/
- [5]https://www.emeraldheating.com/
- [6]https://www.emeraldheating.com/refer-a-friend/
- [7]https://www.emeraldheating.com/about/feel-the-love/
- [8]https://www.emeraldheating.com/service-areas/lancaster-ny/
- [9]https://www.emeraldheating.com/indoor-air-quality/ac-filter-replacement/
- [10]https://www.emeraldheating.com/service-areas/depew-ny/
- [11]https://www.emeraldheating.com/service-areas/akron-ny/