We saw the add in a paper that is delivered to our home every month. The coupon for vent/air duct cleaning starts with saying $39.95. This includes one return, one main duct and vents. The technician came out and counted the vents and said that there needs to be additional work. He NEVER gave a total or did an estimate before starting the work. Needless to say we started at around $40 ...final was told at the END of service is $3100. I called and complained to the owner and he took of $500 (which I did appreciate). However, GET ESTIMATES before the work is done. Insist on it or you will be amazed at what a $39.95 coupon will add up too. read full review »