A $45,000 Range on One Licence: How Plumbing Pay Is Actually Set
Executive Summary
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Read Our Editorial StandardsA journeyman plumber post in Dallas advertises $65,000 to $110,000. That is a $45,000 spread for a single licence tier, the bottom barely above the national median for the whole trade, the top above its ninetieth percentile. The licence law explains where a range that wide comes from, and it also explains what closes it.
Plumbing is one of the last American trades where a statute, not an employer, sets the rungs. That makes the ladder unusually legible if you read it, and unusually easy to climb slowly if you do not.
One licence, most of the trade
The federal series is plumbers, pipefitters and steamfitters (47-2152): a median of $63,800 in May 2025, a tenth percentile of $44,150 and a ninetieth of $108,420, across about 465,840 employed people. The occupation is projected to grow 6.8 percent through 2035 with about 42,000 openings a year, and the typical entry-level education is a high school diploma.
The journeyman plumber post at Dallas Plumbing Company sits across almost that entire distribution. Which end you land on is decided by things the advertisement does not name.
The ladder, as written in law
Texas is the useful worked example here because the post is in Texas and because Chapter 1301 of the Occupations Code sets the tiers out plainly.
| Tier | Supervised hours required | Classroom training before the exam |
|---|---|---|
| Plumber’s apprentice | Must register before assisting a licensed plumber | — |
| Tradesman plumber-limited | 4,000 hours under direct supervision of a journeyman or master | 24 hours |
| Journeyman plumber | 8,000 hours under supervision of a responsible master plumber | 48 hours |
| Master plumber | Two years as a journeyman — or one year with a registered apprenticeship | — |
Eight thousand supervised hours is about four years of full-time work. That is the real cost of the journeyman licence, and it is why the trade rewards choosing the first employer carefully: the hours only count if someone qualified is supervising them and someone reliable is documenting them.
The hours are the tuition. An employer who is careless with your documentation is charging you years, not paperwork.
Two shortcuts that are written into the statute
Both are legitimate, both are in the text, and neither is widely discussed.
- The registered apprenticeship halves the wait for master. The statute allows a journeyman to sit the master exam after one year rather than two if they have completed a training programme approved by the US Department of Labor’s Office of Apprenticeship, or another nationally recognised programme the board accepts. A year of seniority in this trade is worth a great deal, and it is available to anyone who enters through a registered programme rather than informally.
- The school route skips the apprentice registration entirely. A student enrolled in a high school or an institution of higher education who completes a coherent sequence of plumbing courses through a career and technology education programme may apply for and take the tradesman examination, and the board may not require them to register as an apprentice or pay a fee to do it. For a teenager deciding between routes, that is a materially different starting position.
If you are already in the trade without a registered apprenticeship, the first question worth asking an employer is whether they participate in one, because that answer is worth a year of your career.
Endorsements are where the top of the range lives
The licence tiers are not the only structure. Texas issues separate endorsements that gate specific work, each requiring its own examination on top of the licence, including medical gas piping installation, which no one may perform unless they hold a master or journeyman licence and that endorsement, and water supply protection specialist.
This is the most plausible mechanical explanation for a $45,000 spread inside one tier. A journeyman doing residential service work and a journeyman endorsed for medical gas installation in a hospital are the same licence tier and not the same market. Ask which endorsements the employer’s work requires, which they will pay for, and which they will give you the hours to earn.
The step above, and what it is counted as
The plumbing superintendent post at Great Lakes Plumbing and Heating runs $125,000 to $155,000 — above the ninetieth percentile for the trade, because it is not really a trade job any more. Superintendent work is counted alongside construction managers, an occupation with a median of $114,990, growth of 9.1 percent and 49,700 openings a year.
Note that the post is in Illinois. Nothing in the Texas statute above applies to it; licensing is set state by state, and a licence earned in one state does not automatically travel. Anyone planning a move should check reciprocity before assuming the hours carry.
The entry rungs on this board
The trades’ entry rates are what they are: the apprentice electrician post at Miller Electric pays $15 to $16 an hour and the mason helper post at New Dimension Masonry pays $20 to $26. Those figures look poor next to a warehouse rate, and they are — for a period, deliberately. We set out the arithmetic of why in the piece on apprenticeship wage progression.
The relevant comparison is not the first year. It is the fourth, when the licence exists and the hours are documented, and, for anyone doing public work, the separate floor set by prevailing wage determinations, which are published by county and free to read.
Before you take a trade job
- Ask whether the employer runs a registered apprenticeship. In Texas it is worth a year off the route to master; elsewhere it usually carries its own advantages.
- Ask who signs off your hours and how they are recorded. The hours are the qualification; the documentation is the proof.
- Ask which endorsements the company’s work requires and whether it funds the examinations.
- Read your own state’s statute, not a summary. The tiers, the hours and the routes differ, and the text is free.
- Check reciprocity before relocating. Documented hours in one state may or may not count toward a licence in another.
- Pull the employer’s safety record before the first shift, the method is in our walkthrough of reading an industrial safety record.
A $45,000 range on one job advertisement is not an employer being vague. It is a trade in which the licence is the floor and the endorsements, the sector and the documentation decide everything above it. All of that is published, none of it is secret, and almost nobody reads it before signing.
Licence tiers, supervised-hour requirements, classroom-training hours, the registered-apprenticeship route to master and the endorsement structure are as set out in Texas Occupations Code Chapter 1301. Licensing is set state by state and this article describes Texas only. Wage figures are Bureau of Labor Statistics data for May 2025 under Plumbers, Pipefitters and Steamfitters (47-2152); employment projections are the 2025–35 projections released in August 2026. The attribution of the posted range’s width to endorsements and sector is an editorial inference, not a statement by the employer.
