HVAC Start-Up & Test Mechanic Replacements (Commercial)

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 Replacement 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.

What You’ll Do

As a key player in our commercial operations, you will:

• 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

What You Bring

• 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

Experience & Education

• 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

Preferred Certifications

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

Physical Requirements

• 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

Benefits & Perks

At GSM Services, we believe in taking great care of our team—on and off the job. Our coworkers enjoy a comprehensive benefits package designed to support your health, growth, and overall quality of life, including:

• Paid Time Off (PTO) to recharge and enjoy life outside of work
• Paid Holidays throughout the year
• Health Insurance with quality coverage options
• Dental and Vision Insurance
• 401(k) Retirement Plan with company support
• Profit Sharing Program—your contribution helps us grow, and you share in the success
• Life Insurance paid by the company
• Short-Term Disability Coverage
• Company Vehicle (role-dependent)
• Branded Uniforms provided at no cost
• Company-Paid Training & Professional Development
• Tuition Reimbursement to support continued education
• Apprenticeship Opportunities for skill-building and career progression
• Recruitment Incentive Bonus Program
• Gym Membership Program
• Health & Wellness Program
• A Supportive, People-First Workplace Culture