A person feeling for air in their air duct with the words, "signs of an air duct leak."

We rely on our HVAC system to keep our homes cool during the summer and warm during the winter. Air ducts were designed to ensure that our conditioned air gets to where it needs to go. When a leak occurs, your air ducts start working against your HVAC unit, causing it to work harder to ensure your home is at the proper temperature. Wondering if your air ducts are suffering from a leak? Here are the tell-tale signs that they are:

Feeling Uncomfortable in Your Home

When you are walking through your house, do you notice that there are temperature fluctuations between rooms? If there are, this could indicate that your air ducts have a leak making it difficult to cool or heat some of the rooms in your home.

On the other hand, a larger leak may cause your home to feel stuffy as the conditioned air is escaping before it can get anywhere. If you are feeling uncomfortable in your own home, you will want to call your trusted HVAC technicians right away to get to the root of the problem.

Low Air Quality

Leaks that occur in the connections outside, especially the intake ducts, may be pulling air from outside and bypassing it through the filters. This can result in pathogens and allergens getting into your home, lowering the air quality.

If the duct leak is occurring in the basement or attic, it can pull in hazardous fumes from stored chemicals, such as paint thinner, fertilizer, or pesticides.


Appliances like your hot water heater are designed to vent the resulting fumes outside of your home. When your air ducts are leaking, these fumes can be back-drafted into the home. When this happens, dangerous fumes can negatively affect air quality and result in adverse health effects such as headaches and nausea.

High Energy Bills

If you are noticing your energy bills rising every month, it may be due to an air duct leak. An air duct leak will cause your HVAC system to work harder to reach your optimal temperature inside your home. In turn, this causes your energy bills to rise as your system is running more constantly. This can negatively impact your finances and puts increased strain on your HVAC unit which, over time, can cause it to break down.

Frequent Dust In the Home

Are you constantly fighting the never-ending battle against dust? It could be because your air ducts are leaking and bringing in fine particles from either outdoors or other rooms, such as the basement.

Your Trusted Team at Cote’s Mechanical, LLC

When you are facing an air duct leak, don’t fret! Your local HVAC technicians at Cote’s Mechanical have your back. We can locate the source of the leak, repair it, and then check to ensure that your system is back up and running. Don’t settle for high energy bills, loads of dust, or poor air quality and contact your team at Cote’s Mechanical, LLC today!