Skilled Trades16 min read

How to Become a Plumber in 2026: License, Salary by State & Career Path

Complete 2026 guide to becoming a plumber. Covers apprenticeship requirements, journeyman and master licensing, salary by state ($40K–$120K), specializations, and career advancement. Free plumber exam prep included.

Ran Chen, EA, CFP®April 9, 2026

Key Facts

  • Plumber jobs are projected to grow 4% from 2024 to 2034, with approximately 51,000 annual openings driven by infrastructure investment, aging building stock, and water efficiency regulations.
  • The median annual salary for plumbers is $63,370 in 2026, with the top 25% earning $82,370+. Master plumbers earn $75,000–$100,000+, and plumbing contractors can earn $90,000–$200,000+.
  • Journeyman plumbers earn an average of $69,273 per year ($34 per hour), while master plumbers earn an average of $80,053 per year ($38.49 per hour).
  • Becoming a plumber typically requires a 4-5 year apprenticeship with 2,000+ hours of paid on-the-job training and 144+ hours of classroom instruction per year, followed by a journeyman licensing exam.
  • The highest-paying states for plumbers are Illinois ($93,880), Oregon ($92,100), and Washington ($89,650). The highest-paying cities are San Francisco ($107,300) and Chicago ($104,200).
  • Specializing in medical gas installation adds $20,000-$40,000 in salary premium, pipefitting/steamfitting adds $15,000-$25,000, and backflow prevention testing provides recurring annual contract income.
  • Most states require plumber licenses with continuing education (8-24 hours per renewal cycle) and periodic license renewal every 1-3 years. States without state-level licensing (Kansas, Missouri, Nebraska, New York, Pennsylvania, Wyoming) may still require local licenses.
  • Key 2026 trends include federal infrastructure spending driving water system upgrades, growing demand for green plumbing (greywater, rainwater harvesting), and smart home water monitoring systems creating new service categories.

How to Become a Plumber in 2026

Plumbing is one of the most essential and highest-paying skilled trades that doesn't require a college degree. With stable 4% projected job growth through 2034, strong union wages, and growing demand from infrastructure projects and green building technology, plumbing offers a reliable career path with six-figure earning potential. Here's the complete path from apprentice to master plumber.


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Step-by-Step Path to Becoming a Plumber

Step 1: Meet Basic Requirements

Before starting your plumbing career, you need:

  • High school diploma or GED
  • Be at least 18 years old (to enter most apprenticeship programs)
  • Valid driver's license (required for most jobs)
  • Basic math skills — algebra, geometry, and measurement conversions
  • Physical ability — lifting 50+ lbs, working in tight spaces, standing for long periods

Helpful high school courses: algebra, physics, shop classes, mechanical drawing, and any CTE (Career and Technical Education) courses.

Step 2: Choose Your Training Path

You have two main routes into the plumbing trade:

PathDurationCostEarnings While Training
Apprenticeship4–5 yearsFree (you earn while you learn)$35,000–$55,000/year
Trade School6–12 months$3,000–$20,000Not paid (but faster to journeyman)

Apprenticeships are the most common and recommended path. You work full-time under a licensed plumber while attending classroom instruction. Programs are run through:

  • UA (United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry) — union apprenticeships
  • ABC (Associated Builders and Contractors) — non-union apprenticeships
  • PHCC (Plumbing-Heating-Cooling Contractors Association) — merit-shop apprenticeships
  • State-run programs — registered with the Department of Labor

Each year of apprenticeship includes:

  • 2,000 hours of paid on-the-job training
  • 144+ hours of classroom instruction
  • Progressive wage increases (typically 40-50% of journeyman rate to start, increasing each year)

Trade School is faster but costs money upfront. Programs cover plumbing theory, pipefitting, blueprint reading, codes, and safety. After graduation, you still need on-the-job hours before qualifying for a journeyman license.

Fast Track vs. Full License: You can start earning as a plumber's helper or pre-apprentice in as little as 3–6 months through a pre-apprenticeship program. However, becoming a fully licensed journeyman plumber requires 4–5 years and 8,000+ documented hours. There are no shortcuts to the license, but there are shortcuts to the first paycheck.

Step 3: Complete Your Apprenticeship (4–5 Years)

During your apprenticeship, you'll learn:

YearFocus AreasTypical Wage (% of Journeyman Rate)
Year 1Basic plumbing tools, safety, pipe cutting, drain cleaning40–50%
Year 2Residential plumbing systems, fixture installation, water supply50–60%
Year 3Commercial plumbing, welding/soldering, gas piping60–70%
Year 4Blueprint reading, code compliance, system design70–80%
Year 5 (if required)Advanced systems, medical gas, backflow prevention, exam prep80–90%

Tool Investment: Plan to spend $300–$600 on your first tool bag. Essentials include pipe wrenches, basin wrench, tubing cutter, hacksaw, propane torch, adjustable wrenches, plunger, snake, and a level. Quality brands (Ridge Tool, Milwaukee, DeWalt, Reed) last decades.

Step 4: Pass the Journeyman Plumber Exam

After completing your apprenticeship hours, you must pass a journeyman plumber exam to get your license. Requirements vary by state, but most exams cover:

Exam TopicApproximate %
Plumbing Code (UPC/IPC)40–50%
Pipe Systems & Materials15–20%
Fixtures & Appliances10–15%
Drainage, Waste & Vent (DWV)10–15%
Water Supply & Distribution10–15%
Safety & OSHA5–10%
Exam DetailInformation
Questions60–100 multiple-choice
Time3–5 hours
Passing Score70–75% (varies by state)
Cost$30–$150
ReferencePlumbing codebook allowed (open-book in most states)
Prerequisites4,000–8,000+ hours of documented experience

Important: Some states use the Uniform Plumbing Code (UPC) while others use the International Plumbing Code (IPC). Check your state's licensing board for which code applies. States like California, Oregon, and Washington use UPC, while Texas, Florida, and New York use IPC.

Step 5: Advance to Master Plumber (Optional but Recommended)

After 2–4+ years as a licensed journeyman, you can qualify for the master plumber exam. Master plumbers can:

  • Pull permits for plumbing work
  • Supervise journeymen and apprentices
  • Start their own plumbing contracting business
  • Earn significantly higher pay
  • Perform more complex work (medical gas, backflow prevention assembly testing)
Master Exam DetailInformation
Prerequisites2–4 years as licensed journeyman (varies by state)
Questions80–120
TopicsAdvanced plumbing code, system design, business/law, medical gas
Passing Score70–75%
Cost$50–$200

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Plumber Salary in 2026

Plumbing is one of the best-paying trades without a college degree:

National Salary Overview

MetricAmount (2026 Estimates)
Median Annual Salary$63,370
Average Annual Salary$66,530
Hourly Median$30.47
Bottom 25%$50,260
Top 25%$82,370
Master / Contractor$85,000+

Salary by License Level

LevelTypical Annual SalaryHourly Rate
Apprentice$35,000–$55,000$17–$26
Journeyman$55,000–$75,000$27–$36
Master Plumber$75,000–$100,000$36–$48
Plumbing Contractor (Owner)$90,000–$200,000+$43+

Salary by Experience Level

LevelYearsAnnual SalaryHourly Rate
Entry-Level0–2 years$48,000$23.08
Intermediate2–5 years$60,200$28.94
Experienced5–10 years$72,500$34.86
Foreman / Lead10+ years$82,000+$39.42+

Salary by State (Top 10 Highest-Paying)

RankStateMean Annual SalaryTop Cities
1Illinois$93,880Chicago metro
2Oregon$92,100Portland
3Washington$89,650Seattle metro
4New Jersey$87,200Newark, Jersey City
5Massachusetts$85,700Boston
6Hawaii$85,100Honolulu
7Minnesota$83,900Minneapolis
8California$82,400San Francisco, San Jose
9Alaska$81,500Anchorage
10New York$80,600NYC metro

Best-paying cities: San Francisco ($107,300), Chicago ($104,200), New York City ($101,700), Seattle ($98,800), Boston ($96,100).

Salary by Specialization

SpecializationTypical Salary RangeNotes
Residential Plumber$45,000–$70,000Most common, entry point
Commercial Plumber$55,000–$90,000Larger projects, higher pay
Service & Repair$50,000–$80,000Emergency calls, steady demand
Pipefitter / Steamfitter$60,000–$100,000Industrial settings, specialized
Gas Pipe Fitter$55,000–$85,000Requires additional certification
Medical Gas Installer$65,000–$110,000Healthcare facilities, NFPA 99
Backflow Prevention Tester$55,000–$90,000Annual testing contracts
Plumbing Inspector$60,000–$95,000Government positions, benefits
Plumbing Contractor (Owner)$90,000–$200,000+Business ownership, unlimited potential

Plumber Job Outlook 2026

The plumbing industry is experiencing strong, stable demand:

  • 4% projected job growth from 2024 to 2034 (BLS) — about as fast as the average for all occupations
  • Approximately 51,000 job openings projected annually through 2034
  • Growing demand from infrastructure investment, aging building stock, and water efficiency regulations
  • Increasing need for green plumbing (greywater systems, rainwater harvesting, low-flow fixtures)
  • Retirement wave — many experienced plumbers are retiring, creating opportunities

Key Trends in 2026

  1. Infrastructure Investment: Federal infrastructure spending is driving demand for water system upgrades, pipe replacement, and new construction
  2. Water Conservation: Low-flow fixtures, greywater recycling, and smart water monitoring systems require trained installers
  3. Green Building: LEED certification and energy-efficient buildings need plumbers experienced in sustainable systems
  4. Smart Home Integration: WiFi-connected water heaters, leak detection systems, and smart irrigation create new service categories
  5. Aging Infrastructure: Many US cities have water systems 50-100 years old that need replacement

Plumbing Specializations

Residential Plumbing

The most common path. You'll install and repair water supply lines, drainage systems, fixtures, and appliances in homes and apartments. Good mix of new construction and service/repair work.

Commercial Plumbing

Larger-scale projects in office buildings, hospitals, schools, and factories. Requires knowledge of commercial codes, larger pipe sizes, and more complex systems. Higher pay than residential.

Pipefitting & Steamfitting

Installing and maintaining high-pressure pipe systems in industrial settings. Requires additional training in welding, blueprint reading, and system testing. Among the highest-paid plumbing specializations.

Gas Piping

Installing natural gas and propane lines. Requires knowledge of fuel gas codes and usually a separate license or certification. Strong demand with the expansion of natural gas infrastructure.

Medical Gas

Installing medical gas systems (oxygen, nitrous oxide, medical air, vacuum) in hospitals and healthcare facilities. Requires NFPA 99 certification. High pay due to the critical nature of the work.

Backflow Prevention

Testing and certifying backflow prevention assemblies to protect potable water supplies. Requires a separate tester certification. Recurring annual testing contracts provide steady income.


State Licensing Requirements

Most states require a plumber's license to work independently. Here's how it breaks down:

| States With Licensing | Most states require journeyman/master plumber licenses | | States Without State Licensing | Kansas, Missouri, Nebraska, New York, Pennsylvania, Wyoming (local licenses may apply) | | Reciprocity | Some states honor licenses from other states — check with your state board |

Typical licensing requirements:

  • Completion of approved apprenticeship (4–5 years)
  • Passing a journeyman plumber exam
  • Continuing education (8–24 hours per renewal cycle)
  • License renewal every 1–3 years

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Over 51,000 plumber jobs open annually. Your career starts with passing the journeyman exam.


Official Resources

Test Your Knowledge
Question 1 of 4

What is the projected job growth rate for plumbers from 2024 to 2034?

A
2%
B
4%
C
7%
D
10%
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