HVAC Start & Test Replacement Mechanic (Commercial)

GSM Services • Gastonia, NC

5h

About The Position

Are you the technician everyone trusts to make it work right the first time? Do you thrive on precision, problem-solving, and seeing a project successfully cross the finish line? If so, we’re looking for a Commercial HVAC Start-Up & Test Mechanic to play a critical role in commissioning high-profile commercial projects.
This position is more than start-up—it’s about ownership, expertise, and delivering confidence to customers when systems go live.

Requirements

• Strong knowledge of commercial HVAC systems and components
• Ability to read and interpret mechanical plans, specifications, wiring diagrams, and control schematics
• Proficiency with testing instruments, gauges, meters, and diagnostic tools
• Working knowledge of HVAC controls and BAS systems
• Excellent troubleshooting, time management, and problem-solving skills
• High attention to detail with accurate documentation habits
• Professional communication skills and the ability to work independently
• 5+ years of commercial HVAC field experience (start-up/commissioning preferred)
• Technical school, apprenticeship, or equivalent hands-on experience
• Valid driver’s license with an acceptable driving record
• Ability to lift up to 50 lbs.
• Comfortable working on rooftops, ladders, and in confined spaces
• Ability to stand, walk, kneel, and work in varying weather conditions

Nice To Haves

• EPA Universal Certification
• OSHA 10
• Manufacturer start-up or commissioning certifications (Trane, Carrier, Daikin, etc.)
• Controls or commissioning certifications a plus

Responsibilities

• Perform start-up, testing, adjustment, and commissioning of commercial HVAC systems including RTUs, split systems, VRF/VRV, air handlers, VAV systems, pumps, and controls
• Verify installations prior to start-up and identify deficiencies or punch list items
• Test system performance and coordinate balancing activities
• Configure, calibrate, and validate controls, sensors, safeties, and sequences of operation
• Document start-up data, test results, and equipment settings with precision
• Collaborate with Project Managers, Superintendents, Controls Technicians, and Field Mechanics to resolve issues efficiently
• Coordinate with equipment manufacturers and factory representatives when required
• Ensure compliance with mechanical codes, manufacturer requirements, and company standards
• Troubleshoot system issues during commissioning and support resolution
• Assist with customer training and system turnover documentation
• Maintain a clean, safe, and professional jobsite environment

Benefits

• Competitive pay based on experience
• Health, dental, and vision insurance
• Paid time off and paid holidays
• 401(k) with company match and profit sharing
• Company vehicle and tools (as applicable)
• Branded uniforms
• Company-paid training and certification opportunities
• Long-term career growth with a respected, established company

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed
• Number of Employees: 101-250 employees