Troubleshooting center
Duct Sealing vs. Replacement
When sealing is the right call, when replacement is, and how to tell the difference.
Each guide answers the question first, then explains the likely causes in order — duct leakage only where the evidence actually supports it, and a licensed HVAC contractor where it doesn’t.
4 guides in this category
Is Duct Sealing Worth It?
What sealing can and cannot fix, and how to know if your duct system is a good candidate.
Read the answerSealing vs. Replacement
How to tell whether your duct system needs sealing, replacement, or neither.
Read the answerAerosol vs. Manual Sealing
How the two sealing methods work, what each is good at, and where each falls short.
Read the answerWhen to Replace, Not Seal
The specific conditions that make sealing the wrong choice and replacement the honest one.
Read the answer
Find out what your duct system is actually doing.
Schedule a duct leakage evaluation and get measured numbers for your home — not a guess.