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Unionized Jobs in Toronto, ON (NOW HIRING)

Trillium Mechanical Services Inc

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Non-Union Licensed Plumber

Hamilton, ON · Remote

CA$40 - CA$55/hr

  • Medical

  • Dental

  • Vision

  • Life

About Us Trillium Mechanical Services Inc. is a non-union mechanical service company specializing in plumbing and HVAC solutions for high-rise residential and commercial buildings across the Greater ...

Trillium Mechanical Services Inc

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Non-Union Licensed Plumber

Mississauga, ON · Remote

CA$40 - CA$55/hr

  • Medical

  • Dental

  • Vision

  • Life

About Us Trillium Mechanical Services Inc. is a non-union mechanical service company specializing in plumbing and HVAC solutions for high-rise residential and commercial buildings across the Greater ...

Trillium Mechanical Services Inc

Be Seen First

Non-Union Licensed Plumber

Etobicoke, ON · Remote

CA$40 - CA$55/hr

  • Medical

  • Dental

  • Vision

  • Life

About Us Trillium Mechanical Services Inc. is a non-union mechanical service company specializing in plumbing and HVAC solutions for high-rise residential and commercial buildings across the Greater ...

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Showing results 1-20

All JobsUnionized JobsUnionized Jobs in Toronto, ON

Unionized information

See Toronto, ON salary details

$5

$17

$27

How much do unionized jobs pay per hour?

As of Aug 15, 2026, the average hourly pay for unionized in Toronto, ON is $17.06, according to ZipRecruiter salary data. Most workers in this role earn between $9.86 and $24.55 per hour, depending on experience, location, and employer.

What is the difference between Unionized vs Non-Unionized?

AspectUnionizedNon-Unionized
Credentials/CertificationsMay require union-specific training or certificationsStandard industry certifications, no union-specific requirements
Work EnvironmentCollective bargaining, negotiated work conditionsIndividual negotiations, employer-defined conditions
Employer & Industry UsageCommon in manufacturing, public sector, constructionPrevalent in private sector, tech, retail
Search & Comparison IntentWorkers seeking job security, benefits, collective rightsWorkers prioritizing flexibility, individual negotiations

Unionized jobs involve collective bargaining for wages and benefits, often providing greater job security and standardized work conditions. Non-unionized roles offer more individual negotiation power but may lack the same level of collective benefits. The choice depends on worker preferences for security versus flexibility.

How does being in a unionized role impact daily responsibilities and interactions with management?

In a unionized position, your daily responsibilities are typically outlined in a collective bargaining agreement, providing clear expectations and protections. Communication with management often follows established protocols, and any changes to duties or working conditions usually require union consultation or approval. This structure can foster a collaborative environment but may also mean that resolving workplace issues involves union representatives. It’s important to be familiar with your contract and to participate in union meetings to stay informed about workplace policies and any upcoming changes.

What are the key skills and qualifications needed to thrive as a union representative, and why are they important?

To thrive as a union representative, you need a solid understanding of labor laws, collective bargaining, and workplace regulations, often supported by relevant training or experience in labor relations. Familiarity with grievance procedures, contract negotiation software, and communication platforms is typically required. Strong interpersonal skills, diplomacy, and effective communication set standout representatives apart. These competencies are crucial for advocating for members' rights, resolving disputes, and fostering positive labor-management relationships.

What does it mean to be unionized?

Being unionized means that workers are part of a labor union, which is an organization that represents employees in negotiations with employers over issues like wages, benefits, working conditions, and job security. Unionized workers typically have collective bargaining agreements that outline their rights and responsibilities. These agreements help ensure fair treatment and can provide a formal process for addressing workplace grievances. Joining a union can also give employees a stronger collective voice in their workplace.

What cities near Toronto, ON are hiring for Unionized jobs?

Cities near Toronto, ON with the most Unionized job openings:

Unionized jobs near you
Infographic showing various Unionized job openings in Toronto, ON as of August 2026, with employment types broken down into 80% Full Time, 16% Part Time, 1% Temporary, 2% Contract, and 1% Nights. Highlights an 68% Physical, 3% Hybrid, and 29% Remote job distribution, with an average salary of $35,490 per year, or $17.1 per hour.

STP Operator (Unionized)

Aecon Group Inc.

Bowmanville, ON

CA$54.39/hr

Full-time

Re-posted 3 days ago

Job description

Come Build Your Career at Aecon!

Aecon delivers some of the most complex and impactful infrastructure projects - from transformative transportation networks to critical energy, industrial and nuclear programs. The projects we build connect communities and power future generations. With deep roots in North America and a strong footprint internationally, Aecon brings global expertise and proudly serves public and private sector clients through its Construction and Concessions segment.

Safety Always is not only our #1 core value - it is the standard that anchors our culture. We believe the most ambitious projects deserve the most committed people. At Aecon, you won't just build your career - you'll help build what matters to enable future generations to thrive.

At Aecon, you can count on:

  • Safety Always. Our number one core value. The safety of our people, projects, partners, and stakeholders is our priority focus - today and always.
  • Integrity. We lead by example, with humility and courage.
  • Accountability. We're passionate about delivering on our commitments.
  • Inclusion. We provide opportunities where people feel valued, supported, and empowered to contribute fully.

We deliver infrastructure with purpose, and our people are at the heart of everything we do. Aecon employees are incredibly proud to build some of the most impactful infrastructure of this generation - we call it Aecon Proud.

At Aecon we:

  • Ensure you and your family receive the services and benefits needed to support your mental, emotional, and physical well-being.
  • Are intentional when it comes to investing in your development. We help you build your career and advance your skills through our Aecon University, tuition reimbursement, and Leadership Programs.
  • Are committed to creating work environments focused on mutual respect, teamwork, collaboration, and new ideas, through meaningful initiatives, training, partnerships with Veteran groups, our Aecon Women in Trades and diversity programs, as well as our Employee Resource Groups (ERGs), to ensure we are building with top talent and harnessing our collective strengths within every aspect of our culture.
  • Operate responsibly by managing risk, safety, and environmental considerations across all our projects and surrounding communities.

Our success is built on the passion, expertise, and dedication of our people. Together, we embrace strong execution, innovation, and continuous improvement - values that come to life through the unique talents and collaborative spirit of every team member. If you're inspired to make a difference through future-building projects, join our best-in-class team.

What is the Opportunity?

As part of an alliance agreement, Aecon has been awarded a contract in an Aecon-led partnership with Kiewit Nuclear Canada by Ontario Power Generation (OPG) for the execution phase on the Darlington New Nuclear Project (DNNP) in Clarington, Ontario. In 2025, Aecon began the Construction of the Unit 1 Small Modular Reactor at the Darlington site. 

Job Summary

The STP Operator is responsible for operating and monitoring the Separation & Treatment Plant to efficiently separate solids, oil, and contaminants from wastewater generated during construction and tunnelling activities. The role ensures safe operation, environmental compliance, and continuous plant availability to support site operations.

Key Responsibilities - Plant Operation

  • Operate and monitor separation and treatment units including settling tanks, separators, hydrocyclones, clarifiers, oil-water separators, and chemical dosing systems.
  • Control pumps, valves, mixers, and conveyors to maintain steady plant throughput.
  • Adjust flow rates, pressures, and dosing to optimize separation efficiency.

Monitoring & Quality Control

  • Monitor inlet and outlet water quality (pH, turbidity, suspended solids, oil content).
  • Take routine samples and maintain operational logs.
  • Ensure treated water meets discharge or reuse requirements.

Solids & Waste Handling

  • Manage sludge, separated solids, and oil waste.
  • Operate dewatering units and monitor cake quality.
  • Coordinate waste disposal as per environmental regulations.

Health, Safety & Environment (HSE)

  • Follow all site safety and environmental procedures.
  • Handle chemicals safely using proper PPE.
  • Prevent spills, overflows, and environmental incidents.

Reporting & Coordination

  • Report daily operations, downtime, and issues to the Supervisor.
  • Coordinate with TBM, slurry, dewatering, and site teams.
  • Support inspections by the client or authorities.

Reason for vacancy:  New

Pay Rage:

Per the HCAT Collective Agreement:

Effective May 1, 2025: $51,44/hr

Effective May 1, 2026: $52.80/hr

Effective May 1, 2026 $54.39/hr

We strongly encourage applicants who identify as Indigenous to apply to work with us on the Darlington New Nuclear Project. At Aecon, Indigenous is an umbrella term for First Nations (status and non-status), Metis and Inuit. 

Aecon fosters diversity, inclusion and belonging within and across our organization. We welcome all to apply including, women, visible minorities, Indigenous peoples, persons with disabilities, and persons of any sexual orientation or gender identity.

We are committed to adhering to the objectives and requirements outlined in the Accessible Canada Act (ACA), and to meeting the accessibility needs of persons with disabilities in a timely manner. Through the implementation of the requirements of the ACA and its applicable regulations, appropriate accommodations will be provided upon request throughout the interview and hiring process.

As part of our commitment to fair and transparent hiring practices, Aecon may use artificial intelligence (AI) tools to assist in screening and reviewing candidates. These tools are applied responsibly and in accordance with applicable privacy laws and Aecon's AI Usage Policy. All final decisions are made by qualified Aecon team members.

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