They lay out and fabricate structural steel and sheet metal and work with concrete reinforcing steel bars. They perform welding and cutting operations, read blueprints and use special tools. Their work also includes water treatment and distribution systems, air conditioning and refrigeration equipment, and sewage collecting and disposal facilities at Navy shore installations around the world. They work as carpenters, plasterers, roofers, concrete finishers, masons, painters, bricklayers or cabinetmakers. Construction electricians build, maintain and operate power production facilities and electrical distribution systems of Naval installations.
CMs also prepare detailed maintenance records, acquire repair parts and maintain cost control data.