We hired them to put the HVAC in our addition and everything was not smooth. First, getting them to show up on time or on the date they said was always an issue. Secondly, they would often say they were coming and then change when that was. The day they put the heat pump in they chain smoked all around the house while doing it and I was left with 7 cigarette butts in my yard and one in the addition (!) and a pack of cigarettes lying out front that my old later found. 🙁 In general, they did not do a good job of cleaning up after themselves.
They also delayed the home inspection process by not doing something that any HVAC company should have known was necessary which is to put in access to the unit in the ceiling with a pull down step. Finally, communication is not their strong suit. It was often like a whose on first episode until the bill was due…then they were seemingly on top of things!