INSIDE EDITION's House of Shame series is putting more home repairmen to the test - this time to see if they give a fair deal for cleaning an air vent. After hiding cameras throughout a rented house, we called local technicians to check out vents that can build up with dust, debris and mold. One repairman tried to charge $700 to clean and sanitize the air duct system, which only needed a basic cleaning.
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