Obviously you don't own a business and don't know the costs associated with running a business. There is a lot more to figuring out how much a part costs, subtracting that from the total of the job and that is an hourly rate. You also have to take into account licensing, insurance, taxes, overhead, vehicle costs, such as tires, oil changes, breakdowns, etc... I don't physically do all the work in my company. I have employees to do most of the work. I have to pay them as well as pay my share of employer taxes, provide some level of benefits and pay them a wage that they can live off of. Sure I can find some joker for less money. But do you want that person on your job site to steal from you or get hurt? Then what? I pay workmen's comp and have general liability insurance in excess of $1 million. It protects you and me. @Curt Riffel If that guy only took 2 hours to do the job. You got screwed over. He should have evacuated it for several hours before restarting. The distributor charged him $100 to process the warranty. Hopefully he put new freon in it and installed filter dryers on both the suction and liquid lines or you'll be changing that compressor again. Processing fee, freon and filter dryers easily run $400 - $500.