Complete Comfort Heating And Cooling

Had them working on a T&M basis, they had made connections for my units, which I hung on the wall. The units stopped working within a week, they came out and recommended a fix, which I said yes to (I'm not an HVAC expert). Charged me $475 for a vacuum and refill of the system, even though there are much cheaper ways to go about it, then when the unit leaked it's refrigerant out to the point of not working AGAIN, on a connection made by them and found with the simple use of bubbles by myself and another HVAC contractor after the fact, they still wanted to be paid in full and were extorting me by threatening a lien on my house, stay away folks.