Do You Need a General Contractor?

Typically, if your job requires more than three subcontractors, a general contractor may be a good idea. A general contractor can free you from such burdens as maintaining a work schedule, obtaining necessary permits, and resolving disputes with suppliers. He or she will have more leverage than you do with subcontractors, since you're only a one-time job. In a tight labor market, that could be important. A general contractor may get discounts at lumberyards and supply houses. Whether or not these savings are passed on to you or retained as part of the contractor's fee is something that should be covered in the contract.

Source: Consumer Reports