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Sr Commercial HVAC Service Technician

Job in O'Fallon, St. Charles County, Missouri, 63366, USA
Listing for: D&L LLC
Full Time position
Listed on 2026-09-05
Job specializations:
  • Trades / Skilled Labor
    HVAC Tech / Heating Engineer, Maintenance Technician / Mechanic, Field/Service Technician, Installation Technician
Salary/Wage Range or Industry Benchmark: 34000 - 55000 USD Yearly USD 34000.00 55000.00 YEAR
Job Description & How to Apply Below

D&L LLC is an industrial HVAC, mechanical, and sheet metal contractor supporting manufacturing, commercial, and mission-critical facilities across the Southeast. The team is known for delivering dependable service in demanding environments where system performance, responsiveness, and safety matter every day.

In this role, you will play an important part in keeping customer equipment operating reliably and helping maintain the high service standards clients expect from D&L LLC. This is a strong fit for an experienced HVAC professional who enjoys solving problems in the field, working across a variety of systems, and contributing to work that directly supports customer operations.

No travel
- No residential service calls
- Year-round full-time work
- Monday through Friday schedule

Responsibilities
  • Respond to service calls and complete troubleshooting in a timely manner.

  • Inspect, test, and service RTUs, package units, and split systems.

  • Document service work performed and follow all safety procedures.

  • 3+ years of HVAC service experience in commercial or industrial settings.

  • Strong troubleshooting experience across mechanical, electrical, and control systems in HVAC service work.

  • Hands-on experience servicing RTUs, package units, and split systems.

  • Commitment to safe field service practices.

  • Experience mentoring entry-level technicians.

  • EPA Universal certification.

  • Must be eligible to work in the United States.

  • Company truck

  • PTO and paid holidays

  • Company provided healthcare package - no cost to employees

  • 401K with matching contribution

  • All major tools provided

  • All company benefits start immediately - no waiting period

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