I don't bid on anyone else; I just call A-1 United Heating and Air on the phone. They're usually the cheapest you could possibly find. They're very prompt. They get there when they say they're going to.

I use them for the heating and air conditioning in all my commercial properties. They replace units and do construction and everything. I've been with them for ten or more years now. Their word's always good. They're just a good company to do business with.