Second Career
How to Become a Plumber: Apprenticeship, Licensing, and Career Path Guide
May 2, 2026
What Does a Plumber Actually Do?
Before you commit to this path, let's be straight about what the job involves. Plumbers install, repair, and maintain the pipe systems that move water, gas, and waste through residential, commercial, and industrial buildings. That means reading blueprints, cutting and fitting pipe, troubleshooting leaks, installing fixtures, and sometimes working in tight, dirty, or physically demanding conditions.
This is not a desk job. You'll be on your knees, in crawl spaces, up ladders, and occasionally dealing with things nobody wants to deal with. If that doesn't scare you off, keep reading — because the trade pays well, offers serious job security, and doesn't require a four-year degree.
According to the Bureau of Labor Statistics OEWS, the national median annual wage for plumbers and pipefitters is $62,970. In high-demand states, that number climbs significantly — Illinois plumbers median out at $96,200/yr and New York at $78,460/yr, per the Bureau of Labor Statistics OEWS. You're not going to get rich overnight, but you can build a genuinely solid career without student loan debt.
The Apprenticeship Path: How It Actually Works
The most direct route into plumbing is through a registered apprenticeship program. Here's the honest breakdown:
Who runs apprenticeships?
Most programs are sponsored by either the United Association (UA) of Plumbers and Pipefitters — the major union — or by independent contractors and trade associations like PHCC (Plumbing-Heating-Cooling Contractors Association). Union and non-union programs are both legitimate. The key difference is in wage scales, benefits, and job placement networks.
How long does it take?
Typically 4 to 5 years. You'll work full-time under a licensed journeyman plumber while attending classroom or online technical instruction on nights or weekends — usually around 246 hours of related technical instruction per year. The hands-on component requires a minimum of 2,000 hours of on-the-job training per year.
What do you earn during an apprenticeship?
You earn while you learn. Starting wages are typically 40–50% of journeyman pay, increasing as you advance through the program. By the final year, you're usually at 80–90% of journeyman scale. You're not making top dollar, but you're also not paying tuition.
Minimum requirements to apply:
- Must be at least 18 years old (some programs accept 16–17 with parental consent)
- High school diploma or GED
- Valid driver's license
- Ability to pass a drug test
- Some programs require a basic math aptitude test
To find registered apprenticeships, check the Department of Labor's Apprenticeship Finder (apprenticeship.gov) or contact your local UA plumbers union hall directly.
Licensing: What You Need and When You Need It
Plumbing is one of the more heavily regulated trades, and for good reason — bad plumbing can cause floods, gas leaks, and serious health hazards. Licensing requirements vary by state and sometimes by municipality, but here's the general structure:
Apprentice License
Many states require you to register as an apprentice before you can legally work on plumbing systems, even under supervision. This is usually just paperwork and a small fee, but don't skip it — working unlicensed can get your employer fined and disqualify you from sitting for future exams.
Journeyman Plumber License
After completing your apprenticeship hours (typically 8,000–10,000 hours of documented work experience), you're eligible to sit for the journeyman exam. The test covers the International Plumbing Code (IPC) or Uniform Plumbing Code (UPC) depending on your state, plus local amendments. Passing this license means you can work independently on most residential and commercial plumbing jobs.
Master Plumber License
If you want to run your own plumbing business, pull permits in your own name, or supervise other plumbers, you'll need a master's license. Most states require 1–2 years of journeyman experience before you can sit for the master exam. The test is more comprehensive and covers system design, code compliance, and business regulations.
State-Specific Notes:
- Texas: Licensed through the Texas State Board of Plumbing Examiners. The state has its own plumbing code and specific continuing education requirements.
- California: Plumbing contractors are licensed through the Contractors State License Board (CSLB). Individual plumbers work under contractor licenses rather than individual journeyman licenses in most cases — the licensing structure is contractor-focused.
- Florida: Licensed through the Department of Business and Professional Regulation (DBPR). Florida has both certified (statewide) and registered (local) contractor licenses.
- Illinois: Licensing requirements vary significantly by municipality. Chicago has its own licensing board and exam separate from the state.
- New York: Licensing is municipality-based. New York City, for example, has its own Master Plumber license administered by the NYC Department of Buildings.
Always verify current requirements directly with your state licensing board — codes and requirements do change.
Career Progression and What You Can Earn
Plumbing isn't a flat career. There's a genuine ladder here if you want to climb it.
Apprentice → Journeyman → Master → Contractor/Business Owner
Once you're a licensed journeyman, you're employable essentially anywhere. Journeyman plumbers work for plumbing contractors, property management companies, industrial facilities, hospitals, and government agencies. The work is consistent because plumbing never stops breaking.
Here's what the Bureau of Labor Statistics OEWS shows for plumber/pipefitter median annual wages by state:
- National median: $62,970/yr
- Illinois: $96,200/yr
- New York: $78,460/yr
- California: $68,390/yr
- Texas: $58,560/yr
- Florida: $50,540/yr
These are medians — half of plumbers earn more. Top earners in strong union markets or specialized industrial work can clear six figures.
Specializations that pay more:
If you want to push your earnings higher, look at these specializations:
- Pipefitting: Works on high-pressure industrial and commercial systems. Often pays more than residential plumbing.
- Gas fitting: Requires additional certification but gas work commands premium rates.
- Medical gas systems: Requires specialized certification and pays well because the stakes are high.
- Fire sprinkler fitting: A related trade with its own licensing track and strong demand.
Going independent:
Once you have a master plumber license and some capital saved, you can start your own plumbing business. The overhead is relatively low compared to other contracting businesses — a service van, tools, and insurance get you started. Many plumbing business owners earn well above journeyman wages once established, though running a business comes with its own headaches.
Is Plumbing Right for You? An Honest Assessment
Here's what nobody tells you upfront:
The physical demands are real. Plumbing involves lifting heavy pipe, working in confined spaces, kneeling and crawling for extended periods, and sometimes working in extreme temperatures. If you have significant physical limitations, factor that in early.
The first couple of years are humbling. As an apprentice, you're at the bottom. You'll carry pipe, dig trenches, clean up job sites, and do a lot of work that feels disconnected from the skilled trade you're working toward. That's part of the process. The journeymen who stick with it understand they're building a foundation.
The job security is legitimate. Plumbing infrastructure in the U.S. is aging. New construction continues. Climate events are stressing water systems. Demand for licensed plumbers isn't going away, and unlike some industries, this work cannot be outsourced overseas or automated out of existence.
The debt-free path is real. A four-year plumbing apprenticeship costs you nothing in tuition. You earn wages the entire time. Compare that to a four-year degree with average student loan debt exceeding $37,000, and the math is hard to argue with.
If you're a career changer who's been sitting in an office wondering whether there's something more tangible you could be doing with your working life, plumbing is worth serious consideration. The entry bar is achievable, the pay is honest, and the work is permanent.
FAQ
How long does it take to become a licensed plumber?
From starting an apprenticeship to earning your journeyman license, expect roughly 4 to 5 years. That includes 8,000–10,000 hours of on-the-job training and several hundred hours of classroom instruction, followed by passing your state's journeyman exam. The timeline varies slightly by state and program.
Do I need a college degree to become a plumber?
No. The standard entry requirement is a high school diploma or GED. Some community colleges offer pre-apprenticeship plumbing programs that can make you a stronger applicant, but a four-year degree is not required at any stage of a plumbing career.
How much do plumbers make starting out?
Apprentice wages typically start at 40–50% of the journeyman rate in your area, increasing with each year of the program. In a market like Illinois, where the Bureau of Labor Statistics OEWS reports a journeyman median of $96,200/yr, a first-year apprentice might earn in the mid-$40,000 range. In lower-wage markets like Florida ($50,540/yr median per Bureau of Labor Statistics OEWS), starting pay will be lower. Either way, you're earning — not paying tuition.