Applying

How Long Does It Take to Become a Union Plumber?

August 29, 20266 min readBy Michael Briglio

The answer everyone gives is five years. That is correct for the apprenticeship itself and misleading as an answer to the question people are actually asking, which is: how long from today until I am a journeyman plumber?

The apprenticeship is the part with a published length. The part before it is the part that varies, and it is where most of the uncertainty lives.

The apprenticeship: about five years

A UA plumbing apprenticeship runs roughly five years, combining paid work with classroom instruction:

Component	Roughly
On-the-job training	1,700–2,000 paid hours per year
Classroom instruction	200+ hours per year
Total OJT across the program	around 10,000 hours
Program length	about 5 years

You are employed and paid from day one, at a percentage of the journeyman scale that steps up as you progress. That is the structural argument for the union route: you earn while you learn, and you finish with a journeyman card and no tuition debt.

Progression is tied to hours and classroom performance, not just calendar time. Miss hours or fail coursework and the five years stretches.

The part nobody counts: getting in

Before day one of the apprenticeship there is a queue, and its length depends almost entirely on timing you do not control:

Waiting for a window. Locals accept applications during defined recruitment windows. Some are continuous, many are annual, and a substantial number open only once every two years. This is usually the longest single wait — see how the windows work.
The aptitude test. Usually scheduled within weeks of the window closing. Around 70% is a common qualifying minimum, but most locals rank by score, so this determines your position rather than just pass or fail.
The interview. Scored, and at most locals it feeds directly into your rank.
The list. You are placed on a ranked eligibility list and called as the local needs apprentices. A strong rank may be called in weeks; a marginal one may sit until the list expires — commonly one to two years.

Realistically: six months to two years from deciding to starting, dominated by when your local’s window opens and how well you rank.

What actually shortens it

You cannot make the apprenticeship shorter. You can compress the queue, and almost all of that lever is your rank:

Score well, not just enough. Qualifying puts you on the list; your score decides where. The gap between qualified and called is the gap you close by preparing.
Do not miss the window. Missing one can cost a full cycle — a year or two — which dwarfs anything else on this list.
Have documents ready in advance. Transcripts can take two weeks to arrive, which is longer than some windows stay open.
Prepare for the interview. It is scored and it moves your rank, and it is the part applicants prepare for least.
Consider more than one local where geography allows. Two windows a year beats one.

So: how long?

About five years of apprenticeship, plus six months to two years to get in. Call it six to seven years from today to journeyman if things go normally — paid the entire time after day one, with no tuition.

The five years is fixed. The rest is the part you influence, and it starts with a practice test and knowing your local’s window. Programs vary by local — always confirm the specifics with yours.

Frequently asked

How long is a UA plumbing apprenticeship?

About five years, combining roughly 1,700–2,000 paid on-the-job hours per year with 200+ hours of classroom instruction per year — commonly summarised as around 10,000 hours of on-the-job training in total.

Do you get paid during a union plumbing apprenticeship?

Yes. You are employed from day one and paid a percentage of the journeyman scale that steps up as you advance through the program, along with benefits. There is no tuition debt.

How long does it take to get INTO a UA apprenticeship?

This is the part people underestimate. Applications open only during a recruitment window, and many locals open one once a year or once every two years. Between the window, the aptitude test, the interview and the ranked list, six months to two years from deciding to starting is a realistic range.

Can you become a plumber faster outside the union?

You can often start working sooner non-union, but licensing still requires documented hours and most states set those independently. The union route trades a slower start for structured training, scheduled raises and no tuition.

Keep reading

Michael Briglio is a 13-year IBEW Local 134 journeyman electrician and a licensed Illinois educator who teaches a federally recognized construction pre-apprenticeship in Chicago, where he has helped hundreds of applicants get into building-trades unions. He is not a UA member — PipePrep AI is independent and not affiliated with the United Association, any UA local, any JATC, or GAN Human Resources.

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