Skilled trades · Building & Making
Plumber: what the job actually is
Installing and repairing the pipes that bring water in and take waste out, which means being needed most when something has already gone wrong.
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The work
What this job actually is
- Installing, repairing and maintaining piping, fixtures and equipment for water supply, drainage and waste disposal. Skilled Trades Ontario files plumber as trade code 306A and as a compulsory trade.
- The work splits into new construction, where you rough in pipes before walls close, and service, where you arrive to find out what is wrong in somebody else's house.
- You read drawings, but you also read buildings. The plan says the pipe goes here; the joist says it cannot.
- A lot of the day is in awkward places: under sinks, in crawlspaces, behind walls, in trenches. You work where the water is.
- Customers are part of the job in service work. You explain the problem, price the repair and sometimes deliver bad news in a flooded basement.
A Tuesday
What a normal day looks like
Not a good day or a bad one. The ordinary version, which is what you would actually be living.
- 7:00 — Load the van, check the day's calls, and find out which one is a flood and which is a dripping tap.
- 7:45 — First call: a toilet that keeps running. Twenty minutes, one part, and a customer who is grateful in a way you do not get on a site.
- 9:00 — Drive to the second call. A slow drain that two other people have already tried to fix.
- 9:20 — Isolate the water, open it up, and find the actual problem somewhere upstream.
- 11:30 — Clean up, because leaving a mess in someone's home costs you the next job.
- 12:15 — Lunch in the van between jobs.
- 13:00 — Meet a builder on a new house to rough in the pipes before the drywall goes up. Measure, cut, join, support, mark.
- 15:00 — Pressure test the lines and look for the one joint that weeps.
- 16:00 — Write up the work and the invoice, and phone the customer whose part has not arrived.
- 16:30 — Restock the van, because tomorrow starts the moment someone calls.
Honestly
Who loves this, and who should not do it
The second list is the useful one. Nearly every careers page leaves it out, which is why nearly every careers page reads like an advert.
- You like fixing something that was clearly broken and being able to show that it is now fixed.
- You are comfortable with being the stranger in other people's homes at their worst moment.
- You enjoy the logic of water: pressure, gravity, flow, and why something drains or does not.
- You would rather learn on the job, being paid, than sit through years of classroom.
- You can stay calm when somebody else is panicking.
- Wet, dirty, cramped places are a deal-breaker. Drains, sewage and crawlspaces are the job, not a bad day.
- You do not want on-call work. Emergencies do not keep office hours, and service plumbing can involve being called at the wrong time.
- You dislike dealing with the public. Service plumbing is half trade, half customer conversation.
- Your knees, back or hands are already a problem. Kneeling, lifting and gripping are constant.
- You hate bad news. A lot of the work is telling people that what they hoped was cheap is not.
The route in
How you actually get there in Ontario
Find a sponsor and register
Plumber is trade code 306A in Ontario and it is compulsory. To practice legally a person must hold a Registered Training Agreement, a Provisional Certificate of Qualification or a Certificate of Qualification, and appear on the Skilled Trades Ontario Public Register. That starts with an employer willing to take you on.Work the hours, with school in blocks
The apprenticeship is 9,000 hours, which Skilled Trades Ontario describes as approximately five years: 8,280 hours on the job and 720 hours in school.Certify and carry the Red Seal
Plumber is a Red Seal trade, part of the Interprovincial Red Seal Program, so the qualification is recognised across Canada.Start early through school
Ontario says OYAP lets students in Grade 11 or 12 earn co-op credits through a work placement in a skilled trade. Ask your school's co-op teacher or board OYAP recruiter whether plumbing placements exist near you.
Where this comes from: Skilled Trades Ontario — Plumber (306A) · Ontario — Ontario Youth Apprenticeship Program
The money
What it pays in Ontario
Job Bank's own figures, quoted rather than summarised, with the period they describe — so you can tell how old they are and go and check them.
- $20.00
- Low (hourly)
- $32.50
- Median (hourly)
- $50.38
- High (hourly)
Ontario, NOC 72300. Reference period 2023-2024, last updated by Job Bank on 19 November 2025. Wages vary a lot by region inside Ontario and by how long you have been doing it — the low figure is roughly where you start, not what the job is worth.
Where it is heading
The outlook for the next three years
Job Bank publishes a three-year outlook for every job in every province. It is the closest thing to an honest forecast, and it moves, so read it as a weather report rather than a verdict.
Moderate3 out of 5 stars
- Employment growth will lead to a moderate number of new positions.
- Not many positions will become available due to retirements.
- There are several unemployed workers with recent experience in this occupation.
What that rating means: how many openings Job Bank expects in Ontario for this kind of work against how many people are likely to be looking — not whether it is a good job. A “limited” rating means more competition for each opening; it does not close the door, and it can change before you are ready to walk through it.
What is changing in this work
- Population growth, leading to increased demand for residential housing construction and repair services
- Infrastructure investments in public goods such as municipal piping systems, large scale transit projects, and educational and healthcare facilities
Who hires for it
- Majority are in construction, mainly as building equipment contractors
- 22,300
- people work in this job in Ontario
- less than 5%
- are women (48% across all jobs)
- 18%
- are self-employed (15% across all jobs)
Source: Job Bank — Plumbers job prospects in Ontario (NOC 72300). Outlook updated by Job Bank on 10 December 2025; read by us on 5 October 2026.
Before you leave school
Things you can do now
- Ask about OYAP and co-op. The conversation to have is with your co-op teacher or your board's OYAP recruiter.
- Take technology and shop courses, and keep your maths up. Slope, flow and measurement all show up in the work.
- Look at the plumbing you can see at home or at school: where the shut-off valves are, how the drain under a sink is shaped. Look, do not take anything apart.
- Volunteer for a repair job at home with an adult in charge, and notice whether you like the diagnosis or only the result.
Test it
Do this before you decide anything
Reading about a job tells you almost nothing. This is designed to be done alone, this week, for free.
Find out whether you like being the person who works it out
About 60 minutes- Watch a video of a plumber diagnosing a slow drain or a running toilet from start to finish. Pause before the answer and write down what you would check first.
- Find where the main water shut-off is in your own home and where the shut-off under one sink is. Do not operate anything; just locate and write it down.
- Look up what a P-trap is and why it holds water. Draw it and explain it out loud to a wall.
- Phone one local plumbing company and ask whether they take apprentices and what they look for in a first-year.
What it tells you. If you wanted to know the answer before the video gave it, diagnosis may be the part you would enjoy. If the idea of calling a stranger or looking under a sink made your stomach sink, notice it: this trade has a lot of both.
Better than any article
Questions for somebody who does this job
Most people say yes to a teenager who asks good questions. These are the ones that get real answers rather than encouragement.
- “What was the worst call you ever went to, and what did you do?”
- “What is the split between new construction and service in your week?”
- “How do you deal with on-call work?”
- “What did your first year of apprenticeship actually look like?”
- “What do customers get wrong about plumbing that costs them money?”
- “What would you tell a 16-year-old who wants to get into the trade?”
Could you own one of these?
The part other career sites never mention
Yes, and it is a common path. Because plumbing is compulsory in Ontario, you must be registered or certified before you can do the work, and a business then needs insurance, a van, parts and a way of pricing honestly. Service plumbing also depends on reputation, which takes years to build.
Not sure this is the right list to be reading
Start from yourself, not from the job.
Future Finder is free, takes about ten minutes, needs no account and stores nothing. It will tell you which kinds of work you lean toward, and which of these pages are worth your time.
Parent of a teenager weighing this up? Career coaching for teens gets them talking to people who do the work, anywhere in Ontario.
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Wages and training requirements change. Every figure on this page is linked to the body that publishes it, and the review date above says when we last checked. If you find something out of date, tell us and we will fix it.