A builder or building contractor works on the construction and alteration of buildings and other structures, sometimes by hand and often using heavy machinery. A building contractor may own a business and be responsible for overseeing a building project.
Building is a manual labour role and requires a great deal of physical fitness and strength. It is suited to people who like to work with their hands on practical projects, seeing a structure develop over time. There are many different types of building contractors. A builder might do jobs associated with plumbing, heating, masonry, drywall, electrical, roofing, insulation, and trim, either doing the work with a crew or subcontracting.