Welding Programs at Ontario Colleges
See how welding training is structured across Ontario colleges, ranked on an independent six-criteria score.
Compare welding programs in Ontario across colleges. Learn what you'll study, how the welder apprenticeship and Red Seal work, plus CWB certification and career paths.
| Rank | College | Location | Score | Reviews |
|---|---|---|---|---|
| 1 |  Conestoga College is a publicly funded Ontario college whose Reuter Drive Skilled Trades Campus in Cambridge — at 322,000 square feet on 40 acres beside Highway 401 — is among the largest dedicated trades training facilities in Canada. It delivers Red Seal apprenticeships in carpentry, electrician, plumbing, millwright, welder, and CNC machinist, plus the fully funded Women in Skilled Trades (WIST) pre-apprenticeship. Over 150,000 sq ft of purpose-built shops and labs include AR/VR-ready training spaces. Cambridge | Cambridge | 7.7 /10 | No reviews yet |
| 2 |  Humber Polytechnic is a publicly funded Ontario college (established 1967, rebranded from Humber College in 2024) offering apprenticeship and pre-apprenticeship training in the skilled trades. Its Centre for Skilled Trades and Technology at Carrier Drive features a 2024 expansion with new HVAC, gas/oil, AR/VR/XR and woodworking labs designed like an actual worksite. Programs span construction and maintenance electrician, plumber, carpenter, millwright, welder, and arborist trades. Toronto | Toronto | 7.5 /10 | No reviews yet |
| 3 |  Mohawk College is a publicly funded Ontario college serving Hamilton and surrounding communities, whose Marshall School of Skilled Trades & Apprenticeship at the Stoney Creek campus trains roughly 2,400 apprenticeship students per year. It offers Red Seal apprenticeship training in electrician, plumber, carpenter, millwright, steamfitter/pipefitter, welder, and motive power trades. The college is recognized as one of Ontario's leading trades training institutions, with a dedicated initiative supporting women and equity-deserving students. Stoney Creek | Stoney Creek | 7.4 /10 | No reviews yet |
| 4 |  Niagara College is a publicly funded Ontario college (established 1967) operating from campuses in Welland and Niagara-on-the-Lake. Its School of Trades, based at the Welland Campus Rankin Technology Centre, offers welding, electrical, machining, automotive service, and hairstyling programs across advanced labs on 100 acres of green space. The college is also home to Canada's first Teaching Winery, Teaching Brewery, and Teaching Distillery. Welland | Welland | 7 /10 | No reviews yet |
About welding programs in Ontario
Welding is one of Ontario's most in-demand skilled trades, with several routes in. This page explains how welding programs in Ontario are structured so you can compare colleges with confidence. We're an independent directory — we don't run any programs ourselves. Use the framework below to understand the trade, then open each college's profile for the specific courses, intake dates, and details they offer.
What you'll learn
The exact mix varies by college, but welding programs generally build hands-on skills alongside the theory and safety knowledge employers expect. You can typically expect coverage of:
- Common welding processes such as SMAW (stick), GMAW (MIG), FCAW (flux-cored), and GTAW (TIG)
- Blueprint and symbol reading, measurement, and layout
- Metallurgy basics, joint design, and how different metals behave
- Shop safety, WHMIS, and proper use of personal protective equipment
- Cutting and fabrication techniques
Some colleges also offer a pre-apprenticeship stream — a useful entry point if you're new to the trade and want foundational training before seeking an apprenticeship.
Apprenticeship and certification
In Ontario, the welder trade is administered through Skilled Trades Ontario, and training combines in-class learning with on-the-job experience under a sponsoring employer.
- Welder (456A) is a Red Seal trade, so the certification is recognized across participating provinces and territories once you complete training and pass the certifying exam.
- Beyond your provincial credential, employers often value CWB (Canadian Welding Bureau) certification, which tests your ability to weld to specific codes and procedures. Some colleges incorporate CWB testing or preparation — confirm on each college's profile.
- Program length, apprenticeship hours, and tuition vary by college and by stream (pre-apprenticeship vs. apprenticeship). See each college's profile for specifics.
Career paths
Welding skills apply across many industries, including:
- Structural steel and construction
- Manufacturing and fabrication shops
- Pipefitting and pressure-vessel work
- Mining, automotive, and shipbuilding
- Maintenance and repair
With experience and added certifications, welders may also move into inspection, supervision, or specialized high-pressure work.
How to choose a college
When comparing Ontario colleges for welding, look at:
- Hands-on shop time and equipment access
- Whether CWB testing is offered or supported
- Pre-apprenticeship vs. apprenticeship options and entry requirements
- Location, schedule, and support services
Compare the colleges listed in this directory and open any profile for full program details.
Frequently asked questions
Is welding a Red Seal trade in Ontario?
Yes. The welder trade in Ontario carries the trade code 456A and is a Red Seal trade, which means the certification is recognized across participating provinces and territories once you complete your training and pass the certifying exam.
What's the difference between a pre-apprenticeship and an apprenticeship in welding?
A pre-apprenticeship is foundational training that helps you build core skills and prepare to enter the trade, often useful if you're new to welding. An apprenticeship combines in-class learning with on-the-job experience under a sponsoring employer and is administered through Skilled Trades Ontario. Many Ontario colleges offer one or both streams — check each college's profile.
Do Ontario welding programs include CWB certification?
CWB (Canadian Welding Bureau) certification tests your ability to weld to specific codes and procedures, and it's valued by many employers. Some colleges incorporate CWB testing or preparation into their welding programs, while others handle it separately. This varies by college, so confirm the details on each college's profile.
How long do welding programs in Ontario take?
Program length varies by college and by stream — pre-apprenticeship and apprenticeship paths differ, and schedules can be full-time or flexible. We don't publish a single number because it depends on the program; see each college's profile for the specifics they offer.
Who oversees welder apprenticeships in Ontario?
Skilled Trades Ontario administers the welder trade, including the training standards and the certification process. Apprenticeship training combines in-class instruction with on-the-job learning under a sponsoring employer.
What can you do with a welding certification?
Welding skills apply across many industries, including structural steel and construction, manufacturing and fabrication, pipefitting and pressure-vessel work, mining, automotive, and maintenance. With experience and additional certifications, welders may also move into inspection, supervision, or specialized high-pressure roles.
Still have questions? Contact us.