Similarly, there's no shortage of different types of sinks, too. These range from spare single-bowl models starting under $100 to a farmhouse apron front, double bowl made of copper or cast iron that can run $600 or more. Some are mounted under countertops — called undermount sinks — while drop-in sinks are designed for installation in a preexisting space in your countertop. Whatever the type, sinks can uniquely complement kitchen design as do countertops, cabinetry and other features.
Most plumbers, pipefitters, and steamfitters learn their trade through a 4- or 5-year apprenticeship. Apprentices typically receive 2,000 hours of paid on-the-job training, as well as some classroom instruction, each year. In the classroom, apprentices learn safety, local plumbing codes and regulations, and blueprint reading. They also study mathematics, applied physics, and chemistry. Apprenticeship programs are offered by unions and businesses. Although most workers enter apprenticeships directly, some start out as helpers. The Home Builders Institute offers a pre-apprenticeship training program in plumbing and other trades.