AC duct cleaning means taking out dust, mold, and other dirty things from the ducts of your HVAC systems. This makes the air inside your home cleaner and your AC work better.

How often you clean your AC pipes depends on how dusty your house is, if you have pets, and how old your AC is. Most people should clean their ducts every year just to be on the safe side.

Some major signs that indicate you need to clean your AC ducts are dust around the vents, foul odors when the AC is on, have more allergy problems, or feel less airflow from the vents.

Changing air filters helps stop new dust from going in, but it doesn’t clean the dust that’s already inside. This is why AC duct cleaning is necessary.

How long it takes to clean your AC ducts depends on how big your AC unit is, how contaminated the ducts are, and the cleaning method used. On average it can take anywhere from 2 to 6 hours.