The plumber or plumber works according to the plans provided to him and traces the route of the pipes along the walls and partitions. He shapes the piping by cutting tubes to the desired dimensions. He welds them together or connects them to a heater or sanitary equipment, for example. He checks that the system is working properly and that there are no leaks. He installs plumbing fixtures, radiators and boilers in the places best suited to their use. He ensures the adjustment and maintenance of all these installations. He also performs many repairs and repairs to private homes. The plumber usually works on a construction site, sheltered from the elements. Depending on the importance of the work, he works alone or in a team. The profession of plumber requires a good physical condition because the latter often operates in uncomfortable postures and he sometimes carries and handles heavy loads. He may be required to work on Saturdays and on certain public holidays, often in an emergency which therefore requires a certain availability.The plumber works as an employee in a plumbing or building company or in a company offering various specialties. : roofing, thermal, zinc, sanitary, climatic … The driving license is essential to move on the sites. Plumbing is one of the most popular specialties in the building industry. There are more than 63,000 plumbing companies in France. He can work on his own as a craftsman-installer or repairman.