Plumber is a compulsory trade across most of Canada, so you need a Certificate of Qualification (C of Q) in the plumber trade to work for hire. Plumbing is Red Seal designated, which means the C of Q plus a Red Seal endorsement is recognised nationally, except in Quebec. One distinction matters more than any other in this trade: plumbing and gas are separate regulated activities. A plumber may install water supply, drain, waste and vent (DWV) and hydronic systems, but connecting any gas line, even at a water heater, needs a separate gasfitter ticket. Do not conflate the two.
The licence: your C of Q and the contractor registration
In Ontario the plumber trade is coded 306A, it is compulsory, and the C of Q is administered by Skilled Trades Ontario. To work for yourself, you generally hold the C of Q yourself (or employ someone who does) and the business carries the appropriate contractor or business registration that the province or municipality requires for permit work. Alberta requires a Certificate of Qualification for the journeyperson plumber; BC, the Prairies and the Atlantic provinces each have their own framework. Compulsory status and the exact contractor rules vary by province, so check your provincial authority before you quote.
Quebec is its own system
Quebec stands apart. A plumber in Quebec works under a CCQ competency card, the contracting entity holds a Regie du batiment du Quebec (RBQ) licence, and plumbing and gas contractors are regulated through the CMMTQ (Corporation des maitres mecaniciens en tuyauterie du Quebec). A Red Seal earned in another province does not by itself let you trade in Quebec. Treat it as a separate world.
Plumbing and gas are not the same ticket
This is the single most important line in the trade. Installing or altering a gas line, even just connecting the gas at a new water heater, is regulated gas work and needs a gasfitter or gas technician certificate, not a plumbing C of Q. Insurers care about it too: many ask plumbers to declare whether they do gas work, because it sits in a higher premium class. If you want both, you earn both tickets (see Starting Out as a Gasfitter in Canada).
Kit and start-up costs (estimates)
A plumber can start with hand tools and rent the heavy gear until the work justifies buying it. Approximate ranges, so confirm current prices:
- C of Q exam and certificate fees: roughly $150 to $400, depending on the province.
- Pipe tools, press fittings and a power snake: roughly $5,000 to $15,000.
- A used service van: roughly $20,000 to $45,000.
- A drain camera, optional in year one: roughly $3,000 to $8,000.
- CGL insurance at the $2,000,000 minimum: roughly $2,500 to $5,000 a year (commercial clients often want $5,000,000).
A realistic first-year estimate lands around $35,000 to $75,000.
What you can charge (estimates)
Plumbing rates vary widely by region, so treat these as indicative ranges, not fixed prices:
- Standard billing: roughly $80 to $150 an hour Canada-wide, with BC and Alberta often higher.
- Emergency or after-hours first hour: roughly $180 to $300.
- Common jobs: a drain snake or unblock roughly $150 to $350; a water heater replacement roughly $900 to $2,000; a toilet replacement roughly $200 to $500.
Completed-operations cover is critical because a fitting that fails months after the job is your liability, and water damage claims are among the most expensive in the residential trades. Confirm your own numbers against the local market.
Common mistakes
- Touching gas on a plumbing ticket. Connecting a gas line needs a gasfitter certificate. A plumbing C of Q does not cover it.
- Skipping completed-operations cover. The expensive claims arrive after you have left the site.
- Treating a Red Seal as valid in Quebec. Quebec is the CCQ, RBQ and CMMTQ system.
- Pricing only by the hour with no call-out fee. Short jobs lose money.
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