They also work with rebar. Carpenters A four year program. Carpenters measure, saw, level, and nail wood and other building materials. They work with many tools and materials in the construction of homes, commercial buildings, bridges, and highways. Electricians A five year program.
Electricians layout, assemble, install, repair, and test entire electrical and electronic systems.
These workers install and repair varieties of piping systems and sophisticated environmental control systems in residential, commercial, and industrial environments. Millwrights A four year program. Millwrights are construction workers who set and install industrial equipment including pumps, turbines, conveyor systems, and generators. A four year program. A three year program in asbestos removal and treatment.