In addition, they must be able to lay out the job and work efficiently with the tools of the trade. Both types of workers cut, bend, and connect pipes. They use saws and pipe cutters to cut pipes and pipe bending machines to bend pipes to their desired shape. When connecting plastic pipes, plumbers use special glues. For copper pipes, they solder fittings together.
Plumbers often install plumbing in buildings as they are being constructed.
They start by reading blueprints that show the planned location of pipes, fixtures, and appliances. Then they measure and mark areas where pipes will be installed and connected. Pipes are laid out and plumbers check for items, such as electrical wires, that might be in the way. When they find such problems, plumbers reroute the pipes. Sometimes plumbers cut holes in walls, ceilings, and floors.