Duct cleaning has never been shown to actually prevent health problems. Neither do studies conclusively demonstrate that particle (e.g., dust) levels in homes increase because of dirty air ducts. This is because much of the dirt in air ducts adheres to duct surfaces and does not necessarily enter the living space.

Clean ducts ensure smoother airflow, reducing energy costs. Extended System Life: Regular cleaning minimizes wear and tear on your HVAC system, potentially saving you substantial money on future repairs or the need for early replacement.

It's Not a Permanent Solution: Air duct cleaning is not a permanent solution to the problems in your ductwork. The debris and dirt will eventually build up again, so you'll need to have your ducts cleaned again in the future.

An air duct cleaning company will most likely charge around $90 to $125 per hour. Most jobs take between three and eight hours. Some contractors also charge per vent, with the average cost being around $25 to $50 per vent. Anything that increases the job's time or difficulty may incur extra fees.