How to Become a Plumber: Apprenticeships, Trade School, Free Starts

Every building needs clean water coming in and wastewater going out. Plumbers make that happen, and they are needed in new construction, repairs, remodels and emergencies at 2 a.m. It is steady, practical work that you can learn while earning a paycheck.

The traditional route is an apprenticeship, which usually lasts four or five years. Trade school can give you a head start, and there are free programs that help you explore the trade before you commit.

This guide explains each option, what licensing looks like and how to get started this month. One important note up front: plumbing licenses are issued by states and sometimes cities, so requirements vary by state. Always check with your local licensing board.

What plumbers actually do

Plumbing is more than fixing leaky faucets. Depending on where you work, you might install water heaters, lay out piping for a new house, run gas lines, clear sewer blockages or maintain systems in large commercial buildings.

The trade has a few related paths:

• Plumbers usually work on water, drainage and gas systems in homes and businesses.
• Pipefitters and steamfitters work on high-pressure systems in factories, power plants and large buildings.
• Sprinklerfitters install and maintain fire sprinkler systems.

The job is physical. You will kneel, crawl, lift and work in tight or dirty spaces. It also takes problem-solving, since you often have to figure out why a system is not working before you can fix it.

Free ways to test the waters

You do not need to spend a dollar to find out if plumbing suits you. Try a few of these first.

Free online lessons

The Home Depot's Path to Pro Skills program offers free online training modules in plumbing and other trades, along with jobsite safety basics. It will not make you a plumber, but it teaches terms and concepts that make apprenticeship interviews easier.

Your local American Job Center

American Job Centers help people find training and, if they qualify, pay for it through the Workforce Innovation and Opportunity Act (WIOA). You can locate one through CareerOneStop.org. Ask specifically about construction pre-apprenticeship programs.

Volunteer and helper work

Nonprofits such as Habitat for Humanity sometimes let volunteers assist on builds. A short stint as a helper for a local plumbing company can also show you what the day-to-day work feels like. Ask your state whether helpers need to register before doing any plumbing tasks.

Apprenticeship: the main road into plumbing

An apprenticeship combines paid, supervised work with classroom instruction. You learn from licensed plumbers on real jobs and study topics like plumbing code, blueprint reading, math and safety. Pay typically increases as you move through the program.

Common sponsors include:

• United Association (UA) locals, the union for plumbers, pipefitters and related trades, which run joint apprenticeship programs with contractors.
• Plumbing-Heating-Cooling Contractors Association (PHCC) chapters, which support apprenticeship training for member contractors.
• Associated Builders and Contractors (ABC) chapters and other open-shop groups.
• Individual plumbing companies that register their own apprentices with the state.

You can search for registered programs on Apprenticeship.gov, the Department of Labor's official apprenticeship finder.

Typical requirements to apply

Programs set their own rules, but you can usually expect:

1. Minimum age of 18 (some accept 17 with conditions).
2. High school diploma or equivalent.
3. An aptitude test in math and reading.
4. An interview and sometimes a drug screening.
5. A valid driver's license.

Popular programs may only accept applications at certain times of year. Sign up for alerts and apply to more than one.

Trade school: when it helps and when it does not

Community colleges and trade schools offer plumbing certificates that cover theory, code and hands-on lab practice. These programs can help you get hired as an apprentice or helper, especially if you have no construction background.

However, in most states, classroom time does not replace the supervised work hours needed for a license. Some states give partial credit. Before you pay tuition, ask the school exactly how its program counts toward your state's license requirements.

If you do choose school, look into federal financial aid, WIOA funding and scholarships. Some trade organizations and foundations offer grants for students entering the skilled trades.

Comparing your options

Route	Cost to you	Paid while learning?	Counts toward license?	Good first step if...
Union (UA) apprenticeship	Low	Yes	Yes	You want structured training and benefits
Open-shop apprenticeship	Low to moderate	Yes	Yes	You prefer non-union employers
Trade school certificate	Tuition, aid may apply	Usually not	Partially, in some states	You want classroom basics before applying
Helper job	None	Yes	Sometimes, if registered	You need income right away
Free online courses	Free	No	No	You are still deciding

Licensing: from apprentice to master

Most states require plumbers to be licensed. The typical ladder looks like this, though the names and rules vary by state:

• Apprentice or trainee: You register with the state and work under supervision.
• Journeyman: After a required number of years or hours, you pass an exam and can work more independently.
• Master plumber or contractor: With more experience and another exam, you can pull permits, supervise others and often run a business.

Exams usually cover your state's plumbing code (many states use the Uniform Plumbing Code or the International Plumbing Code, sometimes with local amendments), safety and practical knowledge. Some states require continuing education to renew.

Keep careful records of your hours, including dates, tasks and supervisor signatures. It makes the licensing application much easier.

Habits that help new apprentices succeed

Getting accepted is only the start. The first year of an apprenticeship is when you build your reputation, and small habits make a big difference.

• Show up early and ready. Being on time, every time, is the most common thing supervisors mention.
• Ask questions, then take notes. Keep a small notebook for measurements, fittings and code details you learn on the job.
• Keep your tools clean and organized. It shows respect for the work and saves time.
• Take safety seriously. Wear eye protection, gloves and proper footwear, and learn how to work safely around gas lines and in trenches.
• Study code a little each week. It will make your classroom work and your future licensing exam much easier.

Mistakes will happen, and that is part of learning. What matters is owning them, fixing them properly and not repeating them. A reputation as a reliable, careful apprentice can open doors throughout your career.

What the BLS says about pay

The Bureau of Labor Statistics Occupational Outlook Handbook reports that the median annual wage for plumbers, pipefitters and steamfitters was $63,800 in May 2025. The lowest 10 percent earned less than $44,150, and the highest 10 percent earned more than $108,420.

Those are national figures. Your own pay will depend on where you live, your license level, your specialty and your employer. Apprentices usually earn less at first, with raises as they progress. No program can promise a job or income, so talk to local contractors about demand in your area.

How to start this month

Here is a simple plan you can follow:

1. Look up your state's plumbing board and read the apprentice and journeyman requirements.
2. Search Apprenticeship.gov and contact your local UA, PHCC and ABC chapters.
3. Take a free course such as Path to Pro to learn the basics.
4. Brush up on math like fractions, measurements and basic geometry.
5. Visit an American Job Center to ask about pre-apprenticeship programs and funding.

You do not have to figure it all out at once. Just take the next step.

FAQ

How long does it take to become a licensed plumber?

Most people spend about four to five years as an apprentice before they can take a journeyman exam. Requirements vary by state.

Can I become a plumber without going to trade school?

Yes. Many plumbers go straight into an apprenticeship after high school. Trade school is optional in most states, though it can make you a stronger applicant.

Is plumbing hard on your body?

It can be. The work involves lifting, kneeling and awkward positions. Good technique, proper tools and safety gear help a lot over a long career.

Do I need my own tools?

Apprentices usually need a basic set of hand tools, and employers often supply larger equipment. Ask your program for its required tool list before buying anything.