Seek an apprenticeship. The first step in training to become a plumber is seeking an apprenticeship. The United Association of Plumbers and Pipe Fitters can assist in the process. You can expect an apprenticeship to last about three years and many of these opportunities are paid.
Get your plumber's license. Depending on your level of experience, you can take a state exam to become a master plumber or journeyman. You can expect to pay about $200 annually to get your master plumber license and $75 for a journeyman license. Each state has different licensing procedures so you will need to contact your state's business department for procedures.
Decide if you will be self-employed or work for a larger organization. If you enjoy working for yourself and having more flexibility, you may want to be self-employed. However, if you enjoy the security of having a steady paycheck, working for a company may be the right choice.
Contact your local union. Once you have passed your state exam and have a license, you can seek employment. The United Association of Plumbers can assist in finding job opportunities.
Seek continuing education. Once you have your journeyman's license, you can seek continuing education to qualify to sit for the master plumber license. Ask your state business department what your area's specific requirements are for becoming a master plumber.