Most tree services will execute a job with around 4 guys. One man climbing and performing the cutting down of the tree, 2 guys hauling debris to a place it can be processed and one man running the equipment(chipper, bobcat, dump truck). The average tree company will try to get around $200 – $300(depending on risk) per hour for his guys to be working on your tree. This money will cover his labor fees, gas fees, dump fees, and general overhead(liability for the business, insurance on the trucks, maintenance for his heavy equipment, advertising for his business, taxes, etc.) This may seem expensive but you might be suprised at how much an efficient, well run tree service can accomplish in an hour.