HVAC Service Technician — Commercial, All Experience Levels

Job overview

The Commercial HVAC Service Technician role is onsite in North Charleston, SC; the posting describes work across Charleston and Orangeburg, SC. Compensation is described as competitive and based on experience, qualifications, and technical expertise; no numeric pay is specified. Jennings Mechanical’s service team works on commercial HVAC systems and emphasizes quality workmanship, safety, and dependable customer service. The technician diagnoses, maintains, and repairs commercial HVAC systems and supports inspections, testing, installations, and service projects. Responsibilities vary by experience level, with more experienced technicians potentially assisting with mentoring, complex troubleshooting, and technical guidance.

What you'll do

• Diagnose, troubleshoot, maintain, and repair commercial HVAC systems
• perform preventive maintenance, inspections, and performance testing
• work with DX, chilled-water and hot-water systems, hydronic components, pumps, VFDs, and HVAC controls
• support installations and service projects
• communicate equipment issues and recommended repairs to customers
• maintain service tickets, estimates, and documentation
• collaborate with technicians and service managers. Experienced technicians may assist with training and mentoring.

What we're looking for

Skills & competencies

hvac service technician

commercial hvac

north charleston sc

charleston sc

orangeburg sc

jennings mechanical

all experience levels

epa section 608

preventive maintenance

hvac controls

hands-on training

career growth

Work arrangement

• Weekend coverage required

Benefits & perks

• Health insurance
• paid time off
• 401(k)
• continuing education, additional training, and certification reimbursement.

Why this role

Open to all experience levels; entry-level candidates must be willing and able to obtain EPA Section 608 certification within 90 days; experienced technicians require the certification.

About the employer

Jennings Air and Mechanical is hiring for this role. Industry: Plumbing, Heating, and Air-Conditioning Contractors. Sector: 23.