I had this company put in a new heating and air conditioning system in my home. A couple years later I had an annual inspection done by another company and they found that the furnace had been installed upside down (yes, upside down) causing poor ventilation of gas fumes. I called Air Flow back, they came out, acknowledged the error and flipped the furnace. A month later I went to turn my heat on and it wouldn't come on. My husband went upstairs figuring the gas pilot light had been shut down when they did the work and he was going to lit. When he went upstairs he found that the entire ventilation system that is required by code to be brought outside was left hanging and never connected to the outside. If we had lit the pilot light and furnace without checking further the carbon monoxide fumes would have killed us during the night. I immediately called Air Flow (spoke to Charles, the owner) and he acknowledged that they didn't finish the job and forgot to come back. That was on Saturday (11/01/09) and he said he would have someone at my house the following Tuesday at 10 a.m. They never showed and now are not answering my calls. I have filed a complaint against this company with the Texas Department of Licensing in Austin and they are taking it very seriously.