We start the duct cleaning process by connecting our vac system to your main ducts in the basement. After that we blow compressed air through each vent sending all the dust and debris to your main ducts. we then go to your basement and send our agitation tools through your main ducts dislodging any dust and debris and sending it all to our vac system. lastly we clean any remaining dust and debris from your furnace and AC coils. Our duct cleaning service comes with a free dryer vent cleaning and sanitization ($150 dollar value).(dryer must be on main floor or basement)