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The full path into the trade: the steps, the career stages, every way in, what apprentices earn over time, and pay by state.
Five moves take you from no experience to a licensed plumber.
Math (especially algebra and geometry) and reading skills matter for trade exams and blueprint work.
Union apprenticeship, non-union shop, or trade school: each gets you there differently. See the full breakdown below.
Plan for about 4 to 5 years of paid, on-the-job training. Apprentices earn while they learn, and pay rises as hours are logged.
Most states require a state-licensed exam before you can work unsupervised as a plumber.
Stack credentials to raise your pay ceiling and move toward a master license. See which certifications matter.
Plumbing has a clear, regulated path from apprentice to master. You start as an apprentice earning a wage while you learn the trade, move up to a licensed journeyman working independently across residential and commercial jobs, and can top out as a master who pulls permits and runs a business. The whole path is built on documented hours and state exams, and you earn the entire way through.
Earning while learning
Entry into the trade, working under a licensed journeyman or master while you learn pipe systems, drainage, and code. You earn a wage the whole time, starting around 40 to 50 percent of journeyman pay and rising as you log hours. Most apprenticeships run 4 to 5 years and combine on-the-job training with classroom instruction. Some states also offer an intermediate residential-only license partway through.
Day to day
Dig trenches for water and sewer lines, cut and join copper, PVC, and PEX, set fixtures, rough-in walls, and read grading tools to slope pipe correctly, all under supervision
Key milestone
Register with your state board, log your required on-the-job hours (commonly 8,000 to 10,000) plus classroom instruction, then pass the state journeyman exam
Licensed and working independently
The core working license. Journeymen install, repair, and service plumbing across both residential and commercial work without supervision, and train the apprentices on the crew. This is where pay jumps and options open up. Many plumbers spend their whole career at this level and earn well.
Day to day
Run service calls and installs independently, read commercial blueprints, route drain and vent stacks, install backflow prevention, and cap and pressure-test systems to pass inspection
Key milestone
Pass the state journeyman plumbing exam after completing your apprenticeship hours and required code classroom instruction
Highest regulated license
The top license level. Master plumbers pull permits, sign off on code compliance, supervise journeymen and apprentices, and can hold a contractor license to run their own business. Requires additional years as a journeyman and a separate, more advanced exam covering code, design, and business law.
Day to day
Pull permits and own code compliance, design plumbing schematics, write bids and estimates, supervise crews, and optionally operate your own plumbing business
Key milestone
Pass the master plumbing exam after holding your journeyman license for the state-required years (commonly 1 to 4), plus meet insurance and bonding requirements
These are the three state-regulated license levels. Foreman and Senior are job titles assigned by employers, not regulated license tiers.
Regulated license levels vary by state. Some states have additional tiers or different naming conventions. Always verify current requirements with your state licensing board.
What you can expect to earn as you log hours and advance.
| Year | Stage | Hourly (approx) | Annual (approx) | % of Journeyman |
|---|---|---|---|---|
| Year 1 | First-year apprentice | $21.22 | $44,138 | 69% |
| Year 2 | Second-year apprentice | $23.58 | $49,053 | 77% |
| Year 3 | Third-year apprentice | $25.95 | $53,969 | 85% |
| Year 4 | Fourth-year apprentice | $28.31 | $58,884 | 92% |
| Journeyman | Licensed journeyman | $30.67 | $63,800 | 100% |
| Master / Top 10% | Master license | $52.13 | $108,420 | 170% |
Hourly and annual figures are approximations based on typical union percentage ladders applied to the BLS national median. Actual pay varies by local union, employer, and region. Union locals in high-cost metros (New York, San Francisco, Chicago) typically pay 40 to 60% above these figures. Check your local UA wage schedule for exact rates.
Each path gets you there differently. Here's what each one costs, how long it takes, and who it's best for.
The United Association apprenticeship, plumbing's established union path. Earn a wage with full benefits from day one.
Merit-shop apprenticeships through contractor associations, with broad availability and a faster path onto job sites.
Classroom-first training that grounds you in code, pipe systems, and theory before you apply for an apprenticeship.
Entry pay varies by local union, employer, and region. Apprentice pay rises as you log hours, typically reaching journeyman scale by program completion.
| Union | Non-Union | Trade School | |
|---|---|---|---|
| Duration | 4 to 5 years | 4 to 5 years | 1 to 2 years (school only) |
| Benefits from day 1 | |||
| Pension | |||
| Nationwide availability | Partial | ||
| Application difficulty | Competitive | Moderate | Easy |
| Tuition cost | $0 | $0 to $2k | $3k to $15k |
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