I booked this company through Groupon for 79 dollars which included duct cleaning and dryer vent cleaning. When I booked appointment I was advised about additional costs $10 per vent and 29 for additional hookup. Based on 8 additional vents my total expected cost was approx 200. However when the techs were in my home I was advised about numerous additional costs which are not outlined anywhere on their website and never mentioned when booking appointment. If I had agreed the additional costs would have added almost 300 dollars to total job. Suddenly this deal (What a joke) jumped to almost 500 dollars. Read the other reviews and you will see I am not the only person to have had such a brutal experience. If you want a quality job and transparent up front quotes - THIS IS NOT THE COMPANY YOU WANT TO DEAL WITH.