Plumbers design, install, repair and maintain piping systems such as soil, waste, vent, potable water, wastewater treatment, gas systems (medical, propane and natural) in residential, commercial and industrial buildings and at utility sites.

Plumbing tasks require the ability to assemble, install, maintain and repair pipes, fittings, fixtures, appurtenances, appliances of heating, water, storm and sanitary drainage systems according to specifications and plumbing codes. Plumbers install sanitary fixtures, such as lavatories, toilets, bathtubs, bathroom accessories, showers, kitchen sinks and appliances, drinking fountains and laundry equipment.

Working Conditions

Plumbing work can be indoors or outdoors in existing and newly constructed buildings, in all weather conditions. The work requires physical strength and stamina with prolonged standing, bending and lifting heavy pipes and equipment and working in cramped, awkward or uncomfortable positions. Training in safety practices prevents the risk of dangers with falls from ladders, cuts from sharp tools and burns from hot pipes or soldering equipment. Must be able to work from heights of 50 feet or higher to working in trenches, below ground and other confined areas. Must be able to tolerate a variety of environments (weather and work sites, hours, etc.), have mechanical abilities, have awareness of surroundings and responsibilities and be able to tolerate repetitive motion reaching and handling, and the ability to climb, balance, stoop, bend, kneel and crouch on a repetitive basis. Must be able to travel and have the ability to work flexible hours and nights.


  • High school diploma or GED
  • Physically capable of performing the trade
  • Complete the Accuplacer test with a minimum score of 66 in reading (244 for Next Generation Accuplacer), 66 in arithmetic (250 for Next Generation Accuplacer) and 33 in algebra (235 for Next Generation Accuplacer Quantitative Reasoning, Algebra, and Statistics), OR ACT scores of 15 in math and 16 in reading. Scores will be accepted from the ACT or Accuplacer test from within five years from the test date

Terms of Apprenticeship

  • 5-year program
  • 8,000 hours of on-the-job training
  • 500 hours of paid related classroom instruction
  • 260 hours of non-paid related instruction
  • Complete Red Cross First Aid, CPR and OSHA Safety Training Courses during your first year
  • First Aid/CPR Course Certification must be kept current throughout the duration of the apprenticeship
  • Transition-to-Trainer course will be completed in the final year of the apprenticeship

Get Started

To begin a plumbing apprenticeship, you'll need to complete the following components of the application process.

Application Form

Download and complete the Department of Workforce Development apprenticeship application form.


Send a copy of high school transcripts or GED to the Apprenticeship Office. You may need to contact your local high school or GED education provider if you do not have your transcripts.

Accuplacer Testing

Complete the Accuplacer test with the minimum scores noted under “Qualifications” above. To arrange to complete the test, please contact the Testing Center at 715.803.1398

If you have already completed the Accuplacer test, but need to increase the score in order to meet apprenticeship requirements, the College Prep Center can assist you. You can contact the College Prep Center at 715.803.1152


For questions about electrical and instrumentation apprenticeships or the application process, please contact Ben Stahlecker at, or Job Center, 364 Grand Avenue, Wausau, WI, 54403.