Sr. Commercial HVAC Service Technician/Foreman
Four Star Mechanical
Job Description
Job Description
Together We Build – Partnership, Innovation, Excellence, and Safety
Four Star Mechanical is part of Kelso Industries, with 3,500+ employees across 29 operating companies, delivers top HVAC, mechanical, plumbing, refrigeration, and electrical solutions nationwide. Join us to grow your career, make an impact, and be part of a high-performing team. Learn more about us at
Recruiter Notice: We respectfully ask external recruiters and staffing agencies not to submit candidates. We only accept direct applications.
Summary:
We're hiring an experienced HVAC Service Technician to install, inspect, repair, and maintain heating, ventilation, air conditioning, and refrigeration systems in commercial settings.
Schedule:
8-hour shifts, Monday–Friday
Overtime and rotating on-call availability (7-day rotations)
Key Responsibilities:
Install, maintain, and repair HVAC and refrigeration systems, including boilers, chillers, fans, pumps, valves, thermostats, and motors
Perform routine inspections and preventive maintenance
Diagnose and fix mechanical and electrical issues
Work with copper tubing and piping, including cutting, threading, testing, and insulating
Use hand tools, power tools, and test equipment safely
Ensure compliance with safety practices and building codes
Read and follow blueprints, diagrams, and work orders
Provide excellent customer service and complete billing paperwork
Support emergency repairs while on-call
Perform other duties as assigned
Qualifications:
5+ years of commercial HVAC, plumbing, or refrigeration experience
HVAC and brazing license required
Journeyman HVAC license preferred
Universal Refrigerant License required
Hydronic or plumbing licenses a plus
Valid driver's license and clean driving record
Able to be on a rotating on-call schedule
Must be able to access and work on active construction sites
Preferred:
Basic knowledge of direct digital controls (DDC) and network systems (TCP/IP, RS-485)
Work Environment:
Work may be done in an office or on job sites
Fieldwork includes exposure to outdoor weather, heights, mechanical parts, and loud noise
Must be physically present at job sites as needed
Flexibility with hours may be required
Physical Requirements:
Standing and walking for extended periods
Lifting up to 50 lbs or more
Bending, kneeling, crouching, and reaching regularly
Occasional desk/computer work
Must be able to navigate all areas of job sites
Why Join Us?
We're committed to attracting talented individuals who seek a company with a strong foundation of success and an outstanding culture. We proactively provide competitive compensation, comprehensive benefits, and clear pathways for career advancement with autonomy and flexibility in an entrepreneurial environment.
Learn more about us at
We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate in any aspect of employment on the basis of race, color, religion, national origin, ancestry, gender, sexual orientation, gender identity and/or expression, age, veteran status, disability, or any other characteristic protected by federal, state, or local employment discrimination laws where Kelso does business.
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