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1 A proper home air duct cleaning costs anywhere from $400-$1,000, depending on the size of the system to be cleaned, the type of services offered, the regional climate and the level of use the ventilation system gets, the type of materials inside the ductwork and the amount of contaminants (dust, mold, etc.).
In general, however, duct replacement costs an average of $35-$55 per linear foot. Return to Top. Maintenance: How to Keep Ducts & Vents Clean. Installing ducts and vents in a new or existing home sets homeowners up for an easy solution to meeting their heating and cooling needs. However, like any home system, they occasionally need maintenance in the form of cleaning. Newer systems that use air filters may not have a need for regular, professional duct cleaning.