Commercial HVAC Service Tech

Kelso Building Services; Houston (TX); On-site; USD 48,216,000 - 57,859,000; Full time

Benefits offered by this job

Company vehicle

Health, dental, vision benefits

PTO & holidays

Training opportunities

Job summary

Kelso Building Services is seeking experienced HVAC Journeyman Technicians to service large commercial and industrial facilities in the Houston and San Antonio markets. You will diagnose, repair, and optimize complex HVAC systems with a safety‑first approach.

Ideal candidates bring 5+ years of commercial HVAC experience, Texas Journeyman license, EPA 608 certification, and proficiency with BAS/DDC controls. Travel within-state is expected, and a company vehicle is provided.

Qualifications

• Active TDLR HVAC Journeyman License (Texas) required.
• EPA 608 Universal Certification required.
• 5+ years of commercial HVAC experience.
• Open to occasional in-state travel.
• Experience with BAS/DDC controls platforms.

Responsibilities

• Diagnose and repair large tonnage chillers—air‑cooled and water‑cooled; centrifugal, screw, and scroll configurations.
• Commission and start up chiller and controls systems, optimizing for peak efficiency.
• Identify and resolve electrical, mechanical, and controls issues.
• Perform scheduled preventative maintenance on chillers, cooling towers, pumps, boilers, and related equipment.
• Interpret blueprints, wiring diagrams, and control schematics.

Skills

Electrical troubleshooting

Mechanical aptitude

Safety compliance

Communication

Mentorship

Education

TDLHVAC Journeyman License (TX)

EPA 608 Universal Certification

Tools

BAS/DDC controls

Electrical testing equipment

Job description

Job Summary We're looking for experienced HVAC Journeymen Technicians with deep expertise in a variety of commercial HVAC systems to join our service team. In this role, you'll handle complex diagnostics, repairs, preventative maintenance, and system optimization across large commercial and industrial facilities. The right candidate brings strong technical instincts, a safety-first mindset, and a track record of delivering quality service. We are looking for technicians to support the Houston and San Antonio markets.

Key Responsibilities

• Diagnose and repair large tonnage chillers - air-cooled and water-cooled - including centrifugal, screw, and scroll configurations.
• Commission and start up chiller and controls systems, optimizing for peak efficiency.
• Identify and resolve electrical, mechanical, and controls-related issues.
• Conduct scheduled preventative maintenance on chillers, cooling towers, pumps, boilers, and supporting equipment.
• Interpret blueprints, wiring diagrams, and control schematics.
• Keep accurate, timely documentation of all service work, repairs, and recommendations.
• Communicate clearly with customers about system conditions, findings, and next steps.
• Adhere to all safety requirements, EPA standards, and internal company policies.
• Provide guidance and mentorship to apprentices and junior technicians when applicable.

Required Qualifications

• Active TDLR HVAC Journeyman License (Texas).
• EPA 608 Universal Certification.
• 5 or more years of commercial HVAC experience
• Open to occasional in-state travel.
• Experience with BAS/DDC controls platforms.
• Strong electrical troubleshooting capability across both low and high voltage systems.
• Comfortable working independently with limited oversight.
• Valid Texas driver's license in good standing.
• Ability to lift 50 lbs and operate in mechanical rooms, rooftops, and confined spaces.

Preferred Qualifications

• Factory certifications or formal training on major chiller manufacturers.
• Hands-on controls programming or commissioning background.
• Prior experience in hospitals, industrial plants, or large-scale commercial buildings.

What We Offer

• Pay based on experience and qualifications up to $42/hr.
• Company vehicle, tools, and field technology provided.
• Health, dental, vision, and retirement benefits.
• PTO and paid company holidays.
• Continued training and advancement opportunities.