Are Your Heating Vents Making Sounds?

For many people who have older homes, heating vents can become loud with time. It's very normal for heating units to begin making noises, but the sounds coming from your vents can be very disconcerting.

If you hear strange sounds coming from your heating vents, these are some of the things you need to know.

Ticking & Clicking

One sound you might hear is like a clicking or ticking. This sound could have a few different causes, and you may be able to fix some of them yourself. In other cases, a heating service can pinpoint the cause and fix it if it is inaccessible to you.

If you hear clicking and ticking through your vents, one possible reason is your burner is not igniting right away. You may need help to remedy this situation if you hear the clicking continue and it does not seem to improve. Heating services need to remedy this situation.


Banging sounds are also common, and your vents can make them seem worse. Air ducts can bang when they expand because of the hot air passing through them. In order to make sure this is the problem, you may need to check for sealing and insulation issues.

If you have poor insulation, you will hear this noise more often. You can remedy the noise with more insulation in your heating duct system.

If this is not the problem, it could be that square ducts and vents are part of the problem. You may benefit from replacing your system with circular vents to reduce loud sounds.

Hitting or Clanging

Depending on the kind of system you have, you might hear something that sounds like clanging or hitting something. Something could be stuck inside a fan or somewhere else in the system, which means a technician might need to come out and take a look.


Creaking can be caused by several issues, but one of the most prominent ones is often ducts and vents rubbing against other parts of the home, including floorboards. You may be able to solve this problem by having a professional apply sheets of material between the layers.

Are you ready to take care of those sounds? A professional can help you look for the source of the noise whether the problem lies in your furnace or in your vents. Call a heating services professional to learn more about taking care of these heating issues.