Inline Hvac

I purchased a WagJag voucher for a 15-register duct cleaning and a dryer vent cleaning, at least that is what the offer was for. When the two workers came to my house, after postponing me that day 3 times, thank God I had a day off, one went downstairs, once proceeded to count the registers, in which he included the returns. So from being at 15 registers per the offer, now I was over because of the returns. That's fine, no big deal. Then they called me downstairs and proceeded to tell me that without actually cleaning the furnace of builder's dust and the a/c unit, there was no point them cleaning my ducts because dust will be back. They will throw in rotor cleaning of the ducts, which, if you ask me should be included, otherwise what is duct cleaning? I'd like to know. Anyway, those two services were $400 plus tax above in beyond my $90 voucher and they would "throw in" the rotor duct cleaning. This is "switch and bait" at its best. Whether they were right or not, this isn't the way to do business. Basically, they get you to buy the voucher and then they come and tell you the service actually costs more. As opposed to me calling 10 companies from here to give me quotes for free to pick one that I want, they get their foot in the door and make you spend more, whether it's necessary or not. I also did not like their attitude and they charged me another $28 including tax for just coming to my door, even though late. I don't think companies like these should be in business and people should be wary of them and their business practice and tactics.