What Is a Plumbing Apprenticeship?

A plumbing apprenticeship is a structured, earn-while-you-learn training program that combines on-the-job experience with classroom instruction. It's the most common and respected path into the plumbing trade in the United States — and it doesn't require a four-year college degree or tuition debt.

How Long Does It Take?

Most plumbing apprenticeship programs in the U.S. last 4 to 5 years. During that time, apprentices typically complete:

  • 7,000–10,000 hours of on-the-job training under a licensed journeyman or master plumber
  • 144+ hours per year of related classroom or technical instruction

The exact length depends on your sponsoring organization and your state's licensing requirements.

Who Sponsors Apprenticeship Programs?

There are two primary types of apprenticeship sponsors in the plumbing industry:

  1. Joint Apprenticeship Training Committees (JATCs) — run by local chapters of the United Association (UA) of Plumbers and Pipefitters, the largest plumbing union in North America
  2. Non-union / contractor-sponsored programs — often affiliated with trade associations like the Plumbing-Heating-Cooling Contractors (PHCC) or National Phcc Educational Foundation

What You'll Learn

Apprenticeship curricula are comprehensive and cover both technical and safety fundamentals, including:

  • Pipe systems: copper, PEX, CPVC, cast iron, ABS, and more
  • Blueprint reading and plan interpretation
  • Drainage, waste, and vent (DWV) system installation
  • Water supply systems and water heater installation
  • Gas line installation and testing
  • Local plumbing codes and the International Plumbing Code (IPC)
  • OSHA safety regulations
  • Basic math, measurements, and trade calculations

How Much Do Apprentices Earn?

One of the biggest advantages of a plumbing apprenticeship is that you get paid while you train. Apprentice wages are typically set as a percentage of the local journeyman rate and increase as you advance through the program. Early-stage apprentices might start around 40–50% of journeyman wages, rising to 80–90% by the final year. Union programs tend to offer higher starting wages and include benefits like health insurance and retirement contributions.

How to Apply for a Plumbing Apprenticeship

  1. Locate your nearest UA Local Union or PHCC chapter
  2. Check application windows — many programs open once or twice a year
  3. Meet basic eligibility requirements: typically 18+, high school diploma or GED, valid driver's license, and proof of physical fitness for the work
  4. Complete the application and any required aptitude tests (math, mechanical reasoning)
  5. Attend an interview with the apprenticeship committee
  6. Pass a drug screen and background check

Union vs. Non-Union Apprenticeships

FactorUnion (UA)Non-Union / Contractor
WagesTypically higher, standardizedVaries by employer
BenefitsOften includes health & pensionVaries widely
Training qualityNationally standardizedVaries by program
Job placementThrough union hallThrough sponsoring contractor

After the Apprenticeship

Upon completing your apprenticeship hours and classroom requirements, you'll be eligible to sit for your journeyman plumber license exam in most states. From there, the path continues toward master plumber status — and eventually, running your own business if that's your goal.