Mechanical Journeyman

Comfort Systems USA; Charleston (TN); On-site; USD 55,000 - 75,000; Full time

Job summary

Comfort Systems USA in Tennessee seeks a skilled mechanic to support service and retrofit work, performing sheet metal modifications, piping tasks, gasket and valve work, and strict LOTO procedures on active job sites.

You will read drawings and specs, install and torque couplings, maintain safety, travel to construction sites as needed, and communicate progress to the foreman.

Qualifications

• Hands-on experience in mechanical service, piping, HVAC/mechanical systems, plumbing, or industrial maintenance is required.
• Familiarity with flanges, gaskets, valves, and mechanical connections is expected.
• Ability to follow written and verbal instructions and work safely on active job sites.

Responsibilities

• Modify and install sheet metal to support equipment interfaces and ducting.
• Remove and replace gaskets; prepare flange faces and ensure proper fit and seal.
• Perform chiller valve replacements and related isolation, reassembly, and checks.

Skills

Mechanical service

HVAC piping

Piping & fittings

Safety standards

Read blueprints

Tools

Torque tools

Hand tools

Job description

Position Summary

The Mechanic supports mechanical service and retrofit work by performing sheet metal modifications/installation and mechanical piping tasks including gasket replacement, valve replacements, flanged coupling installation and torquing, and strict Lockout/Tagout (LOTO) execution. This role works safely, follows job specifications and torque requirements, and produces high-quality work in mechanical rooms, rooftops, and active job sites.

Key Responsibilities

• Perform sheet metal modification and installation to support mechanical equipment, ducting interfaces, and field-fit needs.
• Remove and replace pipe gaskets; prepare flange faces, align flanges, and verify proper fit-up and sealing surfaces.
• Complete chiller valve replacements (isolation support, removal/replacement, reassembly, and operational checks per job requirements).
• Install flanged pipe couplings and hardware; torque to specification using appropriate tools and documented torque requirements.
• Execute LOTO: identify energy sources, isolate equipment, apply lockout/tagout devices, and verify zero-energy state per procedure.
• Read and work from job documentation (drawings, specs, work orders) to complete tasks correctly the first time.
• Maintain a clean, safe work area; use PPE; follow all safety policies and jobsite rules.
• Communicate job status, material needs, and field issues to the supervisor/foreman; document completed work as required.
• Use and maintain tools and equipment properly, including torque wrenches and standard mechanical hand/power tools.
• Support troubleshooting and basic mechanical service tasks within your skillset; elevate issues when needed.

Requirements

• Demonstrated hands-on experience in mechanical service, piping, HVAC mechanical, plumbing, or industrial maintenance
• Working knowledge of:
• Flanges, gaskets, valves, and mechanical connections
• Proper tool use including torque tools
• Jobsite safety practices and hazard awareness
• Ability to follow written and verbal instructions and work safely in active job environments.
• Must be able to travel to construction sites as needed

Physical Requirements

• Ability to understand oral and written instructions; effective verbal communication.
• Compliance with company dress code and appearance standards.
• Visual acuity for reading small print and identifying details on equipment and drawings.
• Frequent standing, walking, sitting, and use of hands for handling materials and tools.
• Ability to lift and move up to 50 lbs frequently and over long distances (30+ feet).
• Comfortable working at heights over 30 feet and climbing ladders or stairs.
• Ability to bend, kneel, and work in confined spaces; perform repetitive motions as needed.
• Work in varying weather conditions and environments.