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2019 Air Duct Cleaning Costs | Avg. Price to Clean AC ...

Air Duct Cleaning Cost. The average cost of duct cleaning is $366, or between $267 and $483 Larger homes, or those with more ducts or contamination, might pay as much as $700. Clean your ducts every 5 to 7 years or as needed to help improve system efficiency. The size of your ductwork, number of vents, degree of contamination and ease of access all affect the price.