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Plumber Career Guide
Overview
The U.S. Bureau of Labor Statistics tracks plumbers, pipefitters, and steamfitters under SOC code 47-2152. As of May 2025 OEWS data, the median annual wage is $63,800 ($30.67/hr), with 465,840 workers employed nationwide. BLS projects employment to grow 4.5% from 2024 to 2034, with about 44,000 openings expected each year.
Key Takeaways
- Median pay: $63,800 per year ($30.67/hr)
- Top 10% earn: more than $108,420 per year ($52.13/hr)
- Entry-level (bottom 10%): under $44,150 per year ($21.22/hr)
- Projected growth: 4.5% from 2024 to 2034
- Annual job openings: ~44,000 per year through 2034
- Workers employed nationwide: 465,840
- Highest-paying state: District of Columbia (median $101,020)
- State with most workers: California (47,660 employed)
Sources: BLS Occupational Employment and Wage Statistics (OEWS), May 2025; BLS Employment Projections, 2024-2034. Last reviewed July 24, 2026.
Quick answer: Training as a plumber usually takes about 4 to 5 years through a registered apprenticeship that pays you while you learn. You complete supervised on-the-job hours plus classroom instruction, then earn a state license (required in most states) by passing a codes and safety exam. No college degree is needed. The median plumber salary is $63,800 per year ($30.67/hour), and the field is expected to have about 44,000 openings nationwide each year (BLS, May 2025).
Plumbers install, maintain, and repair the piping systems that carry water, gas, and waste through homes, hospitals, schools, and factories. If you are mechanically inclined and like solving problems with your hands, plumbing offers steady, skilled work with a clear path to licensing and self-employment.
How to Become a Plumber
Most plumbers reach journeyman status in about four to five years. There is no single shortcut: you build the career through education, paid apprenticeship hours, and a state license. Here is how the path works.
Earn a High School Diploma or GED
A high school diploma or GED is the baseline requirement for nearly every apprenticeship and trade program. Before you apply, focus on the subjects the work depends on. Algebra and geometry come up constantly when you size pipe, calculate slope for drainage, and figure pressure and flow. Basic physics and chemistry help you understand how water, gas, and heat behave in a system. Any shop, drafting, or technical-drawing class is good preparation for reading blueprints and isometric diagrams. Comfort with simple computer tools helps too, since modern shops use estimating software and digital code references. If you are changing careers and already hold a diploma, you can move straight to the next step. Trades welcome people from other backgrounds, and skills like reliability, customer service, and basic mechanical work transfer well into plumbing.
Apply for an Apprenticeship or Trade Program
The most common route into plumbing is a registered apprenticeship. The United Association (UA) of Plumbers and Pipefitters is the primary union and sponsors registered apprenticeships, while the Plumbing-Heating-Cooling Contractors Association (PHCC) runs programs through its educational foundation. Non-union contractors and local joint apprenticeship committees also hire apprentices directly. These programs pay you a wage that rises as you gain skill, so you earn while you learn instead of paying full tuition. If you cannot land an apprenticeship right away, a trade school certificate or pre-apprenticeship program teaches safety, tools, and basic code, which can make you a stronger applicant. Apply to several programs, since competition for paid apprenticeship slots can be high, and ask each about start dates, wage progression, and how classroom hours are scheduled.
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Complete Your On-the-Job and Classroom Hours
A plumbing apprenticeship typically runs four to five years and blends supervised field work with classroom instruction. On the job, you work alongside licensed plumbers measuring, cutting, joining, and testing pipe, installing fixtures and water heaters, and roughing in new systems. In the classroom, you study the plumbing code, blueprint and isometric reading, math for the trade, water supply and drainage design, gas piping, and job-site safety. Much of the code instruction is built on standards from bodies like the International Association of Plumbing and Mechanical Officials (IAPMO), which publishes the Uniform Plumbing Code, and the International Code Council (ICC), which publishes the International Plumbing Code. Keep careful records of your hours, because your state licensing board will require proof of supervised experience when you apply to test.
Earn Your State Plumbing License
Most states require plumbers to hold a license before working on their own. The first credential is usually a journeyman license, which lets you do plumbing work independently. To qualify, you generally document your apprenticeship hours and pass an exam covering plumbing codes, safety procedures, system design, and practical skills. Requirements and exam content vary by state and sometimes by city or county, so check with your state board early and study the exact code edition your jurisdiction adopts. Some plumbers also add national certifications that licensing and employers value, such as a backflow prevention assembly tester or medical gas installer credential. The American Society of Sanitary Engineering (ASSE) develops plumbing standards and offers several of these professional certifications.
Specialize or Advance Your License
Once you are a licensed journeyman, you can keep building. Many plumbers work toward a master plumber license, which usually requires additional years of experience and a more advanced exam. A master license lets you pull permits, design systems, run jobs, and supervise other plumbers, and it is often a prerequisite for owning a plumbing business. You can also specialize in higher-paying niches such as pipefitting and steamfitting, gas systems, medical gas, backflow testing, or green and high-efficiency plumbing. To find work, use apprenticeship and union connections, contractor associations, trade-school placement help, and local job boards. As you gain a reputation for clean, code-compliant work, referrals and repeat customers work as a steady source of jobs.
What Plumbers Do
Plumbers install, maintain, and repair piping systems that move water, gas, and waste. They read blueprints, interpret plumbing codes, and make sure each system runs safely and efficiently in homes, businesses, and industrial sites.
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Common Responsibilities
- Measure, cut, and assemble pipes and fittings
- Install and test water heaters, sinks, and drainage lines
- Connect gas lines to stoves and furnaces
- Inspect systems for leaks and performance issues
- Follow local and national plumbing codes
- Maintain tools, safety gear, and documentation
Plumbing combines precision, safety, and problem-solving. No two job sites are exactly alike.
Key Skills for Plumbing Success
- Mechanical and troubleshooting aptitude
- Basic math and spatial reasoning
- Understanding of codes and technical diagrams
- Physical stamina and attention to safety
- Clear communication with clients and team members
Typical Work Settings
Plumbers Work Across Many Industries And Settings
- Residential and commercial construction
- Maintenance and facility operations
- Industrial and manufacturing sites
- Municipal and water systems
- Specialized gas or medical pipeline systems
Journeyman vs. Master Plumber
People often ask how a journeyman plumber differs from a master plumber. The distinction matters for both pay and what work you are allowed to do.
Journeyman plumber: has finished an apprenticeship and passed a licensing exam. A journeyman can perform plumbing work independently, usually under a master’s permit on larger jobs.
Master plumber: holds a higher license earned with additional experience and a more advanced exam. A master can pull permits, design systems, supervise other plumbers, and is typically required to own and run a plumbing business.
Exact rules vary by state, so confirm the requirements with your state or local licensing board before planning your path.
Training and Education Options
| Pathway | Typical Duration | Description |
|---|---|---|
| Pre-Apprenticeship Program | 6 to 12 months | Introduces safety, codes, and basic tools |
| Apprenticeship | 4 to 5 years | Combines classroom learning with paid on-the-job training |
| Trade School Certificate | 1 to 2 years | Classroom-based technical training |
| Continuing Education | Ongoing | Updates on plumbing codes and technologies |
Specialty Certifications
Beyond a state license, plumbers can earn advanced or niche credentials, including:
- Backflow Prevention Assembly Tester
- Medical Gas Installer
- Green or High-Efficiency Plumbing Certification
- Pipefitting or Fire Suppression Systems Endorsement
Continuing education and specialty training help maintain licensure and open higher-paying work.
Career Growth and Opportunities
Projected job growth for plumbers, pipefitters, and steamfitters
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