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Union Construction Flagger Jobs in Renton, WA (NOW HIRING)

CenTrio

Utility Construction Worker

Seattle, WA · On-site

$42.51/hr

Utility Construction Worker - Union Position Seattle, WA Full-Time | Monday-Friday Day Shift ... Traffic control or flagging experience * Mechanical construction background Qualifications * High ...

CenTrio

Utility Construction Worker

Seattle, WA · On-site

$42.51/hr

Utility Construction Worker - Union Position Seattle, WA Full-Time | Monday-Friday Day Shift ... Traffic control or flagging experience * Mechanical construction background Qualifications * High ...

Potelco, Inc.

Vac Truck Operator

Sumner, WA · On-site

$34.60/hr

This is a union position ; all employees must meet IBEW Local requirements and maintain good ... EPC construction. * Tanker endorsement on CDL. * Forklift, Flagging, and First Aid/CPR ...

Potelco, Inc.

Vac Truck Operator

Sumner, WA

$34.60 - $60.85/hr

This is a union position ; all employees must meet IBEW Local requirements and maintain good ... EPC construction. * Tanker endorsement on CDL. * Forklift, Flagging, and First Aid/CPR ...

Quanta Services

Vac Truck Operator

Sumner, WA

$34.60 - $60.85/hr

This is a union position ; all employees must meet IBEW Local requirements and maintain good ... EPC construction. * Tanker endorsement on CDL. * Forklift, Flagging, and First Aid/CPR ...

All JobsUnion Construction Flagger JobsUnion Construction Flagger Jobs in Renton, WA

Union Construction Flagger information

See Renton, WA salary details

$10

$24

$35

How much do union construction flagger jobs pay per hour?

As of Aug 22, 2026, the average hourly pay for union construction flagger in Renton, WA is $24.47, according to ZipRecruiter salary data. Most workers in this role earn between $19.47 and $29.18 per hour, depending on experience, location, and employer.

What is a union construction flagger?

A Union Construction Flagger is responsible for directing traffic around road construction sites to ensure the safety of workers, drivers, and pedestrians. They use hand signals, flags, and stop/slow paddles to communicate with motorists and may also assist with setting up traffic control devices. Working as a union flagger means being part of a labor union, which can provide benefits like job security, training, and negotiated wages. This role requires attention to detail, communication skills, and the ability to work in various weather conditions.

What does a union construction flagger do?

A typical day for a Union Construction Flagger involves arriving on site before construction begins, setting up warning signs and safety cones, and coordinating with the crew supervisor to understand the day’s work zones. Throughout the shift, you’ll direct vehicle and pedestrian traffic using signs, hand signals, and occasionally radios to ensure a safe environment for both workers and the public. Flaggers often work in outdoor conditions, sometimes in extreme weather, and must stay vigilant for long periods. Collaboration with other flaggers and construction workers is common, as clear communication and teamwork help prevent accidents and minimize traffic disruptions.

What are the key skills and qualifications needed to thrive as a union construction flagger?

To thrive as a Union Construction Flagger, you need a solid understanding of traffic control procedures, situational awareness, and the ability to follow safety protocols, typically backed by a high school diploma or equivalent. Certification in flagger training through organizations like the American Traffic Safety Services Association (ATSSA), as well as familiarity with two-way radios, reflective safety gear, and signage, are often required. Strong communication skills, alertness, and the ability to remain calm under pressure help flaggers effectively manage interactions with construction crews and the public. These skills are critical to ensure the safety of workers and motorists, as well as to keep construction projects running smoothly and efficiently.

Are union construction flaggers unionized?

Union construction flaggers are often represented by labor unions that negotiate wages, benefits, and working conditions on their behalf. Many flaggers choose to join unions to access collective bargaining and job protections, but union membership is not mandatory for all flaggers. Unionization varies by region and employer.

How to get a job as a union construction flagger?

To become a union construction flagger, you typically need to complete a flagger training course and obtain certification, such as the OSHA-approved flagger certification. Gaining experience in traffic control and working with construction crews can improve job prospects, and joining a union may require meeting specific eligibility criteria and applying through union apprenticeship programs.

What are popular job titles related to Union Construction Flagger jobs in Renton, WA?

For Union Construction Flagger jobs in Renton, WA, the most frequently searched job titles are:

What cities near Renton, WA are hiring for Union Construction Flagger jobs?

Cities near Renton, WA with the most Union Construction Flagger job openings:

Union Construction Flagger jobs near you
Infographic showing various Union Construction Flagger job openings in Renton, WA as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $50,891 per year, or $24.5 per hour.

Utility Construction Worker

CenTrio

Seattle, WA • On-site

$42.51/hr

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 7 days ago

Job description

Utility Construction Worker - Union Position


Seattle, WA
Full-Time | Monday-Friday Day Shift
Competitive Union Pay + Overtime Opportunities


CenTrio is hiring a Utility Construction Worker to support the maintenance, repair, and construction of our underground steam distribution system in Seattle.

This is a full-time union position offering excellent benefits, long-term stability, overtime opportunities, and hands-on work supporting critical energy infrastructure throughout the city.

Candidates with backgrounds in pipefitting, steam fitting, underground utilities, mechanical construction, welding, or industrial maintenance are encouraged to apply.


What You'll Do

  • Perform maintenance and repair work on underground steam distribution systems
  • Cut, fit, thread, and install piping
  • Repair and maintain valves, steam traps, and insulation systems
  • Perform excavation, trenching, and confined space work safely
  • Operate and work around heavy equipment and mechanical systems
  • Support emergency repairs and system maintenance activities
  • Perform welding work when qualified and assigned
  • Follow all safety procedures and utility work practices


Preferred Experience

  • Pipefitting or steam fitting experience
  • Underground utility or industrial maintenance experience
  • Welding experience, especially pressure piping or ASME welding
  • Experience working in confined spaces, trenching, or excavation
  • Traffic control or flagging experience
  • Mechanical construction background


Qualifications

  • High School Diploma or GED
  • Valid Class A CDL required
  • Ability to work outdoors in varying weather conditions
  • Ability to safely perform physically demanding work
  • Strong teamwork and communication skills
  • Willingness to work overtime, nights, weekends, or holidays as needed


Additional Preferred Certifications

  • CPR / First Aid training
  • Confined Space Entry training
  • Shoring and trenching experience
  • Welding certifications


Why Join CenTrio?

  • Union position (IBEW Local 77)
  • Medical benefits starting Day 1
  • Medical, dental, vision, life, and AD&D insurance
  • 401(k) with company match
  • Stable year-round infrastructure work
  • Paid training and career growth opportunities
  • Team-oriented environment with long-term career potential


Schedule

  • Monday-Friday
  • 8-hour shifts
  • Overtime opportunities available


Who is CenTrio?

CenTrio is a fully integrated, innovative and sustainable energy services provider to a wide range of industries such as higher education & healthcare campuses, cities, and communities. It serves more with utility infrastructures serving more than 170+ million square feet of space and operations in 10 cities across the United States and growing. In each community, the company operates highly efficient and innovative utility infrastructures that produce and distribute electricity, steam, hot water and/or chilled water to customer buildings and campuses. Customers connected to these systems enjoy multiple benefits including reduced operating costs, lower emissions and unmatched reliability. CenTrio is a wholly owned subsidiary of a global Infrastructure Investment Consortium with unmatched financial wherewithal and manages a portfolio of long-life, high quality infrastructure assets with high barriers to entry that generate stable and growing cash flows.



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