Bartlett Heating and Air explains some common duct problems

There are a few reasons why your ducts might not be performing at their best. A couple ways to notice that your ducts are working as well as before are some of your rooms are never comfortable and your utility bills are typically higher than normal. You can lose around 20 percent of the conditioned air and that is circulated which leads to higher bills. If there are loose or unconnected duct connectors, the conditioned air has trouble making it to your rooms and is likely lost in spaces you don’t need conditioned. You need to make sure your registers are sealed properly because if they aren’t the air can make it to the room but still leak into unneeded spaces which wastes energy. Check for leaks at the furnace or ac connection point because if there’s a leak there the conditioned air wont make it to the rooms you need it to. The last place for concern is dents and kinks in the ducts. They can slow down or restrict airflow which makes the ac and furnace work harder then it needs to. Call Bartlett Heating and Air today to have someone come check your duct system out and make sure it is operating at its best.