Plumber Jobs in Ontario 2026: Complete Career & Salary Guide
Plumbing remains one of Ontario's most resilient and rewarding skilled trades in 2026. With ongoing residential construction, commercial development, and infrastructure maintenance across Ottawa and the broader province, qualified plumbers enjoy strong job security, competitive wages, and clear career advancement paths.
Ottawa's Plumbing Market in 2026
Ottawa's plumbing sector benefits from several converging trends: rapid population growth in suburbs like Kanata and Barrhaven, aging infrastructure in older neighbourhoods requiring replacement, and new building codes demanding more sophisticated plumbing systems. The city's cold climate also creates consistent demand for heating system installation and maintenance.
Plumber Salary in Ontario
| Experience Level | Hourly Rate (CAD) | Annual Salary (CAD) |
|---|---|---|
| Apprentice (Year 1-2) | $20 – $28 | $41,600 – $58,240 |
| Apprentice (Year 3-4) | $28 – $38 | $58,240 – $79,040 |
| Journeyman | $38 – $52 | $79,040 – $108,160 |
| Master / Specialist | $52 – $65+ | $108,160 – $135,200+ |
Source: Job Bank Canada, Skilled Trades Ontario, 2026. Union rates may be higher.
306A Plumber License: Requirements & Process
Ontario's plumbing trade is regulated under the 306A Construction and Maintenance Plumber classification. Here's what you need to know:
Apprenticeship Structure
- Duration: 5 years (approximately 9,000 hours)
- In-school training: 8 weeks per year at an approved college
- On-the-job training: Remaining time working under a licensed plumber
- Sponsor: Must be registered with an employer or union sponsor
Exam Content
The 306A exam covers Ontario Plumbing Code, water supply systems, drainage and venting, fixture installation, gas fitting basics, and safety regulations. The pass rate is approximately 65-70% on first attempt.
Types of Plumbing Careers in Ontario
- Residential plumber — New home construction, renovations, service calls
- Commercial plumber — Office buildings, retail spaces, restaurants
- Industrial plumber — Manufacturing facilities, process piping
- Service plumber — Emergency repairs, maintenance contracts
- Gas fitter — Natural gas and propane systems (additional certification)
- Steamfitter — High-pressure systems, HVAC piping
Top Plumbing Employers in Ottawa
Major employers include Mr. Rooter Ottawa, Mr. Drain, Roto-Rooter, Drainman Plumbing, and numerous union shops affiliated with UA Local 46. Government buildings also employ in-house plumbers through Public Services and Procurement Canada.
Related Resources
Plumber Licensing Ontario Complete Guide | Top Paying Trades in Ontario 2026 | Red Seal Certification Guide | Ontario Trades Apprenticeship Programs | Ottawa Construction Boom & Trades Demand