Centrifugal Chiller Field Service Specialist

H and G Systems — Dallas–Fort Worth, TX

$45–$55 per hour + Take-Home Vehicle | Full-Time, Year-Round

A day in the life

You start your morning in your driveway, not a shop. From your take-home vehicle, you review your first dispatch and head straight to a hospital, data center, or manufacturing facility. Your focus: keep mission-critical centrifugal chillers running at peak performance. You diagnose, repair, and optimize large-tonnage HVACR systems—mechanical, electrical, refrigeration, and controls—then document everything through digital reporting before moving to the next site.

Afternoon might bring a start-up or commissioning of a newly installed unit, coordinating with facility teams to verify setpoints and performance. By day’s end, you’ve prevented downtime in environments that can’t afford it—and you never once took a residential call.

About H and G Systems

We are a Dallas–Fort Worth mechanical contractor with 55+ years of success in high-performance commercial and industrial refrigeration. Our service team supports organizations that rely on reliability—think healthcare, data infrastructure, and advanced manufacturing.

What you’ll do

• Troubleshoot and repair centrifugal chillers and other large-scale HVACR equipment
• Diagnose issues across mechanical, electrical, refrigeration, and control circuits
• Lead start-ups and commissioning to verify system readiness and performance
• Maintain uptime for critical facilities where downtime is not an option
• Complete accurate, timely digital service reports

Compensation and benefits

• $45–$55/hr based on centrifugal chiller expertise
• Take-home vehicle and dispatch from home
• 90% employer-paid medical
• 401(k) with 6% match
• Unlimited PTO + 8 paid holidays
• Tuition/book reimbursement for ongoing certifications
• Relocation assistance available for candidates moving to DFW

What you’ll bring

• 5+ years hands-on experience with centrifugal chillers or comparable large commercial HVAC
• Proficiency with brands such as York, Trane, Carrier, Daikin, or similar
• EPA 608 Universal Certification
• TDLR license
• Valid driver’s license with a clean driving record

Ready to make the leap?

If you’re done with residential HVAC and want to be the technician other techs call, let’s talk. Reach out for a confidential conversation about this specialist role.