Commercial HVAC Technician

Senior Commercial HVAC Technician

The Senior Commercial HVAC Technician is a highly skilled, field-based professional responsible for the diagnosis, service, repair, commissioning, and optimization of complex commercial HVAC systems. This role requires advanced technical expertise, strong problem-solving skills, leadership in the field, and the ability to work independently while supporting operational excellence and customer satisfaction.

This position may serve as a technical lead on jobsites and acts as a mentor to junior technicians and apprentices.

Essential Functions & Responsibilities

Technical & Trade Responsibilities

• Diagnose, repair, and maintain commercial HVAC systems, including:
  • Rooftop Units (RTUs)
  • Split systems
  • Chillers (air-cooled and water-cooled)
  • Boilers (hot water & steam)
  • Cooling towers
  • Make-up air units
  • VAV systems
  • Heat pumps and VRF/VRV systems
• Perform advanced troubleshooting of:
  • Electrical systems (single and three-phase)
  • Motors, VFDs, contactors, relays, and control boards
  • Refrigeration systems, compressors, and metering devices
• Read and interpret blueprints, wiring diagrams, schematics, and control sequences
• Commission new equipment and verify proper operation per manufacturer specifications
• Perform system balancing assistance and airflow diagnostics when required

Controls, Controls Interface & Automation

• Troubleshoot and adjust commercial HVAC controls, including:
  • Building Automation Systems (BAS)
  • Thermostats, sensors, and actuators
• Interface with controls contractors and building engineers
• Verify sequences of operation and proper system response

Preventive Maintenance & Compliance

• Perform scheduled preventive maintenance on commercial HVAC equipment
• Complete accurate service documentation, PM reports, and compliance checklists
• Identify and communicate equipment deficiencies and life-cycle replacement needs
• Ensure all work complies with:
  • OSHA safety standards
  • EPA regulations
  • State and local mechanical codes
  • Company safety policies and procedures

Customer Service & Communication

• Serve as a technical representative of the company on commercial job sites
• Communicate clearly with:
  • Property managers
  • Facility directors
  • Building engineers
  • General contractors
• Explain system issues, repair recommendations, and preventative strategies in a professional manner
• Provide detailed repair recommendations and estimates when applicable

Leadership & Mentorship

• Act as a field leader and technical resource for junior technicians and apprentices
• Provide on-the-job training and guidance
• Promote safe work practices and quality standards
• Support management with technical input on job planning and system evaluations

Administrative & Technology Responsibilities

• Accurately complete service tickets, work orders, and time entries using company systems
• Document refrigerant usage and compliance logs
• Maintain truck stock, tools, and equipment in good working order
• Communicate job status, delays, and material needs proactively

Requirements

Required Skills/Abilities:

Required Qualifications

Education & Certifications

• High school diploma or GED required
• EPA Universal Certification required
• OSHA-10 (minimum) preferred; OSHA-30 strongly preferred
• State HVAC license or equivalent (where required by jurisdiction)

Experience

• 7+ years of commercial HVAC service experience
• Demonstrated experience working independently on complex commercial systems
• Experience mentoring or leading other technicians preferred

Technical Skills

• Advanced electrical and mechanical troubleshooting
• Strong refrigeration diagnostics skills
• Proficiency with test instruments (meters, gauges, combustion analyzers, etc.)
• Ability to read and interpret technical documentation and control diagrams

Physical Demands

• Ability to lift up to 75 lbs
• Ability to climb ladders, work on rooftops, and access confined spaces
• Ability to stand, kneel, crouch, and work in varying weather conditions
• Must be able to wear required PPE

Work Environment

• Commercial and industrial facilities
• Rooftops, mechanical rooms, and occupied buildings
• Exposure to weather extremes, electrical hazards, moving mechanical parts, and noise

Competencies & Attributes

• Strong problem-solving and diagnostic ability
• High attention to detail and quality workmanship
• Professional communication and customer-focused mindset
• Leadership presence and team-oriented attitude
• Reliable, punctual, and safety-driven