Derek ColeGM, Simmons One Hour Heating & Air · AI HVAC Answers

How to know you need Duct Sealing

28 Jan 2026 · 1 min

Episode

28 Jan 2026 · 1 min

0:00

Derek Cole explains when duct sealing makes sense for your home. A pressure test shows how much air your ducts leak. If it's under 5%, skip it. Around 20%, it's worth doing, since typical systems lose 20-30% of conditioned air.

Questions this episode answers

4–5%

20%

20–30%

Chapters

Another thing we do when people are not sure if they want to go ahead and do a duct sealing or not is we go ahead and send the crew out, do a pressure test on that duct system, which will give us a reading of how much air is being lost, and then at that point, the homeowner can make a decision. Yes, I want to go ahead with it. No, I don't want to go ahead with it. We've had both. Yeah, we've had both. So, you know, we've done the test before and, you know, it's come back 4 or 5%. It's not really worth it. Don't worry about it. And we've done tests before where it's come back 20% and we need to go ahead and do a dose of it. So if you're not sure and you don't have a technician out, we will come out, hook up the machine, do a test on it, see where we are. Because according to Energy star, you know, 20 to 30% of your air is being lost from the duct system.