Construction

To Become a Glazier (Installation of curtain walls commercial fenestration) in Ontario: Salary, Training, and Career Outlook.

by Occupations.ca Team
12 min read

Have you ever looked up at a sleek glass tower and wondered who installs those massive glass walls so precisely? If you enjoy working with your hands, solving problems at height, and seeing your work shine across a city skyline, becoming a Glazier specializing in the installation of Curtain Walls and commercial fenestration in Ontario could be a great fit for you.

Job Description

Glaziers in Ontario who focus on commercial fenestration install, seal, and service exterior building envelope systems like curtain walls, window walls, unitized panels, storefronts, skylights, and commercial doors. You’ll work from architectural drawings and shop drawings to assemble Aluminum Framing, set insulated glass units, integrate anchors and embeds, apply weatherproofing, and ensure systems meet performance requirements for air and water tightness, energy efficiency, and structural load.

You typically work on mid-rise and high-rise commercial, institutional, and residential projects, often collaborating with ironworkers, carpenters, electricians, and site supervisors. Many glaziers in this specialty work for glazing contractors in the ICI (Industrial, Commercial, and Institutional) sector, frequently on unionized crews. The role demands strong awareness of Construction sequencing, Safety at heights, and Quality Control.

Daily work activities

On a typical day, you might:

  • Meet with your foreperson to review the day’s targets, site logistics, and safety plan.
  • Load and rig curtain wall components for hoisting, or move unitized panels to floors using mast climbers or material hoists.
  • Lay out anchor points, check plumb and level lines, and prepare the building structure (slab edges, embeds, or anchors) for installation.
  • Assemble aluminum frames, set pressure plates and caps, and install insulated glass units (IGUs), spandrel glass, or composite panels according to shop drawings.
  • Apply gaskets, sealants, and thermal breaks, then complete pressure-equalized joints and water Management details.
  • Conduct checks for tolerances, squareness, and alignment, and assist with water testing or air barrier tie-ins.
  • Coordinate with crane/signaller, swing stage operators, and site supervisors to sequence lifts and facade drops.
  • Perform Housekeeping, dispose of offcuts safely, and maintain tools and equipment.

Main tasks (in bullet points)

  • Read and interpret architectural drawings, shop drawings, and installation manuals.
  • Lay out Curtain Wall and Window Wall systems; verify dimensions and tolerances.
  • Install anchors, embeds, and brackets; drill and fasten to Concrete or Steel.
  • Assemble stick-built curtain wall frames and install unitized curtain wall panels.
  • Set IGUs, spandrel panels, doors, sidelites, and skylight components.
  • Apply sealants, gaskets, setting blocks, shims, and thermal breaks to spec.
  • Use glass handling equipment: suction cups, dollies, lifts, cranes, and glazing robots.
  • Work on aerial lifts, scaffolds, mast climbers, and swing stages with fall protection.
  • Perform Quality Assurance checks, water/air barrier tie-ins, and site deficiency work.
  • Follow Ontario safety regulations (Working at Heights, WHMIS, EWP/MEWP).
  • Repair, replace, and service damaged glass or failed seals.
  • Collaborate with site teams to plan hoisting, staging, and sequencing.
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Required Education

There are several pathways to become a glazier in curtain wall and commercial fenestration in Ontario. The most common route is through an apprenticeship with in-school Training delivered by approved training providers.

Diplomas (Certificate, College Diploma, Bachelor’s Degree)

  • Certificate (Apprenticeship)

    • The core credential is an apprenticeship as an Architectural Glass and Metal Technician (Glazier) recognized by Skilled Trades Ontario. Completing the program and passing the Red Seal exam allows you to earn a nationally recognized Red Seal endorsement (RSE).
    • You can also earn short certificates in Working at Heights, Elevating Work Platforms (MEWP), WHMIS, Confined Space Awareness, and Hoisting & Rigging—often required before stepping onto site.

  • College Diploma (Optional but helpful)

    • A two- or three-year Architectural Technology, Building Technology, or Construction Engineering Technician diploma can be helpful if you plan to transition into estimating, drafting, QA/QC, or project Coordination later in your career.

  • Bachelor’s Degree (Optional, for advancement)

    • Degrees in Construction Management, Civil Engineering, or Architecture are not required to work as a glazier, but can accelerate progression into Project Management, facade engineering, or site Supervision roles.

Length of studies

  • Apprenticeship: Typically 3 to 4 years, combining about 6,000+ hours of on-the-job training with three levels of in-school training (often 8–10 weeks per level). Progress is competency-based; motivated apprentices may complete sooner.
  • Pre-apprenticeship: Often 12–20 weeks (varies by program), designed to prepare you with basic skills and safety certifications and connect you with employers.
  • College Diploma: 2–3 years (optional).
  • Bachelor’s Degree: 4 years (optional for advanced roles).

Where to study? (schools + useful external links)

Tip: Not all colleges deliver the glazier in-school curriculum every intake. Employers and unions often place apprentices into the next available in-school block. Confirm the Delivery agent and schedule with your sponsor (employer or union) and Skilled Trades Ontario.

Salary and Working Conditions

Entry-level vs experienced salary

Wages vary by region (GTA vs. other parts of Ontario), project type, and whether you work union or non-union. Unionized ICI glaziers typically have higher base rates plus Benefits and pension.

  • Entry-level apprentice: about $20–$28 per hour, increasing each term.
  • Journeyperson glazier: about $32–$45+ per hour; forepersons/supervisors can earn more.
  • Overtime, shift premiums, Travel pay, and subsistence may apply on some projects.

For up-to-date wage data in Ontario, consult:

Job outlook

Ontario continues to build and retrofit extensively, especially in the GTA, Ottawa, and Southwestern Ontario, which sustains demand for curtain wall and commercial fenestration specialists. Energy-efficiency retrofits (re-cladding, window replacement, thermal upgrades) Support steady opportunities beyond new construction.

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Overall, the outlook is typically rated Moderate to Good depending on local market conditions, major infrastructure projects, and high-rise development cycles.

Working conditions

  • Environment: Mostly outdoors or partially enclosed building perimeters; exposure to wind, cold, heat, and precipitation. Work continues year-round with weather delays as needed.
  • Physical demands: Lifting glass and aluminum components, maneuvering materials on lifts, and precise hand skills. Expect standing, climbing, and working from heights.
  • Hours: Early starts are common; some weekend or evening work during critical installation phases. Overtime may be available.
  • Travel: Projects may be across the city or in other regions; a valid driver’s licence and reliable Transportation help.
  • Safety: Strict Compliance with Working at Heights, MEWP, WHMIS, and site-specific orientations. Regular use of PPE, including cut-resistant gloves, hard hat, eye protection, high-visibility gear, and fall arrest equipment.

Key Skills

Soft skills

  • Attention to detail: Curtain wall tolerances are tight; small errors can cause air/water leaks or misalignment.
  • Teamwork and communication: Coordinate with crane operators, site supervisors, and other trades.
  • Problem-solving: Adjust for on-site variations in slab edges, embeds, or as-built conditions.
  • Time management: Meet installation targets and sequence work efficiently.
  • Professionalism and reliability: Show up prepared, follow safety protocols, and maintain quality standards.
  • Spatial reasoning and visualization: Understand how unitized or stick-built systems assemble in three dimensions.

Hard skills

  • Blueprint and shop drawing reading: Understand elevations, sections, details, anchor schedules, and glazing charts.
  • Measurement and layout: Laser levels, plumb lines, and measuring tools for precise placement.
  • Curtain wall systems: Unitized vs. stick-built, pressure-equalized rain-screen principles, thermal breaks, and water management.
  • Glass handling and setting: Safe movement of IGUs, use of suction cups and glazing robots, and correct setting block placement.
  • Sealants and gaskets: Correct selection, surface prep, application, and tooling for long-term performance.
  • Anchoring and fastening: Drilling concrete/steel, installing anchors and brackets to spec.
  • Rigging and hoisting communication: Signalling, tagging lines, and coordination with crane or hoist operators.
  • Aerial work platforms: Operation of boom and scissor lifts (MEWP) under Ontario regulations.
  • Quality assurance: Tolerance checks, water testing, and deficiency corrections.
  • Digital tools: Basic familiarity with tablets, digital plans, and field reporting apps.

Advantages and Disadvantages

Advantages

  • Visible impact: Your work defines a building’s look and performance—true pride of workmanship.
  • Strong earnings potential: Competitive wages, especially in unionized ICI sectors with benefits and pensions.
  • Variety: Every jobsite and system is different; you’ll keep learning.
  • Career mobility: Pathways into lead hand, foreperson, QA/QC, drafting, estimating, project coordination, or site supervision.
  • Red Seal portability: The Red Seal often helps you work across Canada.

Disadvantages

  • Weather exposure and heights: You must be comfortable working outdoors and at elevation.
  • Physical demands: Lifting, carrying, and precision handling of heavy materials.
  • Variable hours and travel: Early mornings, occasional overtime, and projects outside your immediate area.
  • Safety-critical: Constant attention to fall protection, glass handling, and hoisting operations is mandatory.
  • Cyclical work: Construction can fluctuate with the economy and development cycles.

Expert Opinion

If you’re considering this trade in Ontario, start by earning your OSSD and booking your Working at Heights training. Then, aim to secure an apprenticeship with a glazing contractor—union or non-union. The union pathway (through IUPAT District Council 46 and FTI Ontario) is a strong option for curtain wall installers because it provides structured training, consistent safety practices, and a clear wage progression.

To stand out, be early to site, keep your tools maintained, and learn to read shop drawings confidently. Ask to shadow experienced installers during layout and the first few panels—that’s where you gain crucial knowledge on tolerances and sequencing. Also, become comfortable with lifts and hoisting protocols; efficient material movement is half the job.

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Finally, take pride in quality: perfect lines, clean seals, and proper gaskets. Curtain wall systems are unforgiving—good habits lead to fewer callbacks and faster promotions. If you like precision, teamwork, and skyline-scale projects, this specialty rewards you with steady work and a career you can build on.

FAQ

What’s the difference between curtain wall and window wall in Ontario high-rises, and why does it matter for my training?

  • Curtain wall is a non-load-bearing exterior system hung off the slab edges, often with unitized panels that interlock and manage water externally with pressure-equalized cavities. It demands strong skills in hoisting, panel alignment, and system sealing at vertical/horizontal joints.
  • Window wall typically sits between slabs (slab-to-slab) and is often installed from the interior with exterior caps. Tolerances, anchors, and sequencing differ.
    For you, this means learning both systems. Ontario projects use each approach depending on design, budget, and performance goals. Employers value apprentices who can switch between systems confidently.

Do I need to be in a union to work as a glazier on curtain wall projects in Ontario?

No. The trade is generally non-compulsory in Ontario, so you can work union or non-union. However, many large ICI curtain wall projects are built by unionized contractors. The union pathway often offers higher wages, benefits, pension, and structured training at recognized centres like FTI Ontario. If you go non-union, ensure your employer supports your apprenticeship registration with Skilled Trades Ontario and your in-school training blocks.

How do I start an apprenticeship if I have no experience or connections?

What certifications or tickets help me advance faster on curtain wall crews?

Beyond your apprenticeship levels, employers value:

  • Working at Heights (Ontario-approved) and MEWP (Boom/Scissor Lift) certifications.
  • Hoisting and Rigging basics; signalperson competency.
  • WHMIS and First Aid/CPR.
  • Manufacturer training (sealants, hardware, glass handling systems) and IHSA safety courses: https://www.ihsa.ca
  • Digital plan reading and field reporting apps (Bluebeam, Procore, PlanGrid).
    These make you more versatile and trusted on complex installs.

I have international experience as a glazier. Can I get recognized in Ontario?

Yes. You may be eligible for a Trade Equivalency Assessment (TEA) through Skilled Trades Ontario, which evaluates your prior experience against Ontario standards. If approved, you can challenge the Certificate of Qualification exam (and the Red Seal if available for your trade). This can fast-track your certification.

What math do I actually use on site?

You’ll use:

  • Measurement conversions (imperial/metric), fractions, and decimals.
  • Layout math for plumb, level, and square; checking diagonals for squareness.
  • Tolerance stacking to ensure cumulative errors don’t derail the facade.
  • Area and perimeter calculations for glass and gasket lengths.
  • Basic trigonometry for sloped glazing or corner angles.
    Accuracy matters—carry a notepad, double-check measurements, and use your laser level smartly.

Are there pathways from glazier to project management or estimating in Ontario?

Absolutely. After becoming a journeyperson, you can move into:

  • Lead hand/foreperson on site.
  • QA/QC roles handling water testing, punch lists, and commissioning.
  • Detailing/drafting with an employer’s design team, especially if you take courses in CAD or BIM.
  • Estimating and project coordination (Architectural Technology or Construction Management diplomas help).
  • Site supervision or project management with experience, additional coursework, and strong communication skills.

By layering field expertise with technical education, you’ll be well-positioned for Leadership roles on Ontario’s largest building envelope projects.

If you’re ready to build a career that quite literally shapes Ontario’s skyline, the glazier pathway in curtain walls and commercial fenestration offers hands-on work, strong wages, and room to grow. Start with safety training, connect with an employer or union, and take pride in mastering a precision trade that keeps Ontario’s buildings beautiful, efficient, and weather-tight.

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