Blackwell Duct Cleaning Inc

We were contacted by phone and Blackwell offered complete duct cleaning for $135. They were at my home less than 10 minutes when the upsell for more services began. I needed my furnance cleaned and the furnance burner cleaned (I'm on a furnance service contract and cleaning was performed in Sept) also the blower and my A/C needed cleaning. All this for an additional $388.50. The ducts don't even appear all that clean to me. The workmen left a mess on my carpets and in my basement. Needless to say i did not have any additional wok done by these clowns.