How to Become a Plumber

Plumbers install and service the piping systems that deliver potable water, remove waste and carry fuel gas. The classification covers plumbers, pipefitters and steamfitters, which diverge significantly once you pass the apprenticeship: residential service work looks nothing like process piping in a refinery. Licensing is state-administered and almost always requires documented apprenticeship hours.

Median annual pay

$61,550

$29.59 per hour

Projected growth

+6%

2023–2033 projections

Typical entry

4–5 years

High school diploma or equivalent

The path, step by step

1. 1

   Confirm the trade actually fits you

   Before anything else, test the assumption. Extended kneeling, crawling and overhead work in tight spaces. Lifting water heaters and cast iron is routine. Exposure to sewage requires strict hygiene practice. Spend a day on a jobsite with someone ten years into the trade — not someone in year one — and ask what they would tell their younger self.

2. 2

   Meet the baseline requirements

   Most programs require high school diploma or equivalent, an age of 18 or over, a valid driver's licence, and one year of high school algebra with a passing grade. Algebra is the most common blocker and the easiest to fix — one semester at a community college clears it.

3. 3

   Choose your training route

   4–5 year paid apprenticeship through a union local or a licensed contractor. A registered apprenticeship pays you from the first week and carries no tuition debt. A trade school program costs money up front but can shorten the time to a first job and is sometimes the only realistic route where apprenticeship slots are scarce.

4. 4

   Apply — broadly, and more than once

   Apply to the union local, to non-union programs run by contractor associations, and directly to licensed contractors in the same cycle. Application windows are narrow and often annual. Competitive locals receive hundreds of applications for a handful of slots, so reapplying after improving your aptitude score is normal rather than a setback.

5. 5

   Work the apprenticeship

   Expect 4–5 years (roughly 8,000 on-the-job hours), combining paid on-the-job hours with classroom instruction. Apprentices typically start near 40–50% of journeyman scale with scheduled increases every six to twelve months, reaching 80–90% of scale by the final year.

6. 6

   Get licensed and pick a specialization

   Nearly every state licenses journeyman and master plumbers; gas fitting is often a separate endorsement. After licensing, pay diverges by specialization far more than by years served. The common paths are residential service and repair, new construction rough-in, commercial plumbing, pipefitter (process and mechanical).

What it costs to start

Through a registered apprenticeship there is no tuition, but there are real first-year costs that catch people out.

Application and testing

Usually $25–$75 for the application and aptitude test, where charged at all.

Tools

A first-year plumber tool kit typically runs several hundred to a few thousand dollars depending on the trade and the tier you buy. Ask your local or employer for their required list before buying anything.

Boots and PPE

Budget $150–$300 for boots. Employers usually supply everything else beyond footwear.

Transportation

Reliable transportation is a practical requirement. Jobsites change and are rarely on a transit line.

Classroom

Related instruction is normally paid for by the program, though books and fees can run a few hundred dollars a year.

Before you decide

Common questions