Getting in

How to become a plumber in Ontario

You become a plumber in Ontario through an apprenticeship — paid, on-the-job training with in-school levels, finishing with the 306A Certificate of Qualification. You earn from day one, typically starting around half of journeyperson rate and stepping up each level.

The path, step by step

1. 1

   Line up a sponsor

   An apprenticeship needs an employer or union training centre willing to register and train you. For this trade that usually means a plumbing or mechanical contractor, or the UA union route through its training centres. Cold-calling shops with a resume and any safety tickets (WHMIS, Working at Heights) in hand still works — contractors are chronically short of apprentices.

2. 2

   Register the apprenticeship

   You and your sponsor sign a training agreement through Ontario's apprenticeship system, and you register with Skilled Trades Ontario. Registration is what makes your hours count.

   Start an apprenticeship — ontario.ca
3. 3

   Do the hours and the school

   Complete the on-the-job hours and in-school levels for the trade — about 9,000 hours over 5 years, with in-school levels. The in-school blocks run at colleges and union training centres; you alternate between earning on site and learning in class.

4. 4

   Write the Certificate of Qualification exam

   When your hours and schooling are done, you book and write the C of Q exam with Skilled Trades Ontario. We wrote a full operator-level guide to the last mile — closing out the logbook, booking, prep, and exam day.

   Full guide: 306A Plumber
5. 5

   Then: stack the post-cert layers

   Municipal Master Plumber licensing (to pull permits as a business), backflow prevention certification, and a TSSA gas ticket each open new scopes — and they are the building blocks of going independent.

   Full guide: 306A Plumber