Getting in
How to become a glazier in Ontario
You become a glazier in Ontario through an apprenticeship — paid, on-the-job training with in-school levels, finishing with the 424A (voluntary) Certificate of Qualification (voluntary for this trade, but it is the credential employers recognize). You earn from day one, typically starting around half of journeyperson rate and stepping up each level.
Glazing & Curtain Wall at a glance
- Licence to do the work
- Not required — 424A is voluntary
- Path in
- Apprenticeship about 4 years, mostly through glazing contractors or IUPAT
- Regulated by
- Manufacturer system certifications govern commercial work
- Insurance baseline
- $5M CGL on high-rise work
- Union route
- IUPAT glaziers locals
The path, step by step
- 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 glazing contractor, or the IUPAT glaziers' training centre. 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
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
Do the hours and the school
Complete the on-the-job hours and in-school levels for the trade — about 4 years of hours plus 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
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: 424A Architectural Glass & Metal
Already an apprentice closing in on your ticket? Skip ahead. Our Last Mile guide covers closing out the logbook, booking the C of Q exam, what to expect on exam day, and the credentials that stack on top. 424A Architectural Glass & Metal →
The real picture
Glazing splits into two very different jobs people lump together — the residential/storefront glazier and the high-rise curtain-wall installer hanging glass forty floors up. The questions follow: storefront or high-rise, union (IUPAT) or not, how real the heights reality is, and whether the engineering-heavy curtain-wall side is worth its danger premium.
What you'll actually make
From day one to the top of the trade. Ontario figures, approximate and worth verifying against current rates.
Apprentice
A % of journeyman rateThrough the 424A apprenticeship.
Journeyman glazier (424A)
$35–45/hrIUPAT union sits at the top with a pension.
High-rise / curtain-wall specialist
PremiumHeights, rigging, and engineered systems pay more.
Foreman
MoreGlazing contractor
Business incomeStorefront/residential is the accessible own-a-business lane.
Which lane is right for you
Storefront/residential vs high-rise curtain wall
Storefront & residential
Shopfronts, windows, doors, shower glass, mirrors, and railings — varied, customer-facing work and the natural path to your own business.
Best for: People who want variety and to eventually own a shop.
High-rise curtain wall
Engineered glazing systems on towers — heights, rigging, swing stages, and manufacturer systems. The high-pay, high-danger end of the trade.
Pay: Premium.
Best for: People with a real head for heights who want the top of the pay scale.
Getting in
Through the 424A apprenticeship with a glazing contractor or the IUPAT glaziers' union. The certificate is voluntary, but the apprenticeship (and union route) is how you learn the systems and earn the best wages. The high-rise side demands a genuine head for heights — it's not something to fake your way into.
Where it leads (and the way out)
Foreman, estimator, project manager, manufacturer/systems rep, or owning a glazing business. The accessible ownership lane is storefront and residential — high-rise curtain wall is hard to own because it's engineering- and capital-intensive. Estimating and the manufacturer-rep side are common off-the-tools moves for veteran glaziers.
Where the real conversations are
The communities, official bodies, and wage data tradespeople actually use.
Go to the source
The official pages that govern this trade. Bookmark these, they are the final word on requirements and fees.