Troubleshooting center
Duct Leakage
How to tell whether conditioned air is escaping before it reaches your rooms.
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.
6 guides in this category
Telling if ducts are leaking
The visual and comfort clues that suggest leakage, and why only a test confirms it.
Read the answerSigns of leaky ductwork
The pattern of symptoms — comfort, bills, and physical clues — that together suggest duct leakage.
Read the answerDuct leaks and hot rooms
How a leak in the run serving one room can leave it warmer than the rest of the house.
Read the answerDuct leaks and weak airflow
Why leakage more often reduces delivered air than register velocity, and when it does neither.
Read the answerAir escaping into the attic
How to tell whether ductwork is dumping conditioned air into an unconditioned attic.
Read the answerWhat causes attic duct leakage
The specific failure points that develop in attic ductwork over time and at installation.
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.