A general contractor manages the full scope of a project — scheduling, coordinating trades, pulling permits where required, and overseeing the work from start to finish. A subcontractor is a specialist, such as a plumber or HVAC technician, who is hired to complete one specific part of the job. On a Harrisburg row house renovation, a general contractor might handle demo, drywall, and tile work directly while subcontracting electrical work to a licensed electrician. The general contractor is the single point of accountability for the whole project.