What Causes Noisy HVAC Ducts?

What Causes Noisy HVAC Ducts?

Have you ever been startled by sudden rattling or humming sounds echoing through your home, only to find out it’s your HVAC ducts making all the fuss? Noisy HVAC ducts can be more than just a minor annoyance; they could be hinting at a larger issue with your heating or cooling system. 

In this post, we discuss why your HVAC ducts might be noisy and why addressing this issue is essential for the comfort and peace of your home.

Common Causes of Noisy HVAC Ducts

HVAC ducts are essentially the respiratory system of your home. They’re responsible for circulating warm and cool air throughout every room. When they start making noise, it’s their way of telling you something isn’t quite right.

 

Some common causes can range from simple issues like improper AC installation to more complex problems like the following:

Air Pressure Problems

When it comes to the cause of noisy HVAC ducts, the most common culprit is changes in air pressure. This can be caused by various factors, including clogged air filters, inadequate insulation or improperly sized ductwork. When air is restricted in any of these areas, it can cause a rattling or humming sound to reverberate through your home. 

Clogged Air Filter

If the air filter in your AC is clogged, the airflow in your ductwork will be restricted. This increases air pressure within the ducts, leading to thumping, rattling and humming sounds. 

Ductwork Issues

Your HVAC ducts might also make noise due to inadequate insulation or improperly sized ductwork. When the ducts are not insulated properly or are too small, it causes changes in air pressure, resulting in loud noises. 

Animal or Debris

Occasionally, animals or debris like leaves and twigs can find their way into your HVAC ducts and cause strange noises. The debris can cause air pressure issues, and the animals will likely cause a commotion — or worse, leave droppings throughout your ducts. 

Let American Refrigeration Heating and Air Conditioning Co., Inc. Handle Your HVAC Needs!

Noisy HVAC ducts can seriously disrupt your home’s tranquility, but they don’t have to be. Acknowledging the signs early is critical to ward off those annoying sounds. If you’re a resident of Olive Branch, MS, facing noisy duct issues, don’t hesitate to call American Refrigeration Heating and Air Conditioning Co., Inc. at (662) 895-7204. You can also visit our contact page to schedule a consultation. We also provide heating maintenance and AC system repair.

Contact us now to get quote

Contact us now to get quote