Heating Air Conditioning Service Technician

HX Mechanical; Castle Rock (CO); On-site; USD 48,000 - 72,000; Full time

Job summary

HX Mechanical is seeking a Heating Air Conditioning Service Technician to join the Castle Rock, CO team. This full-time, on-site role focuses on diagnosing, servicing, and repairing residential and light commercial heating and air conditioning systems, including furnaces and heat pumps.

You will perform routine inspections and preventive maintenance, install or replace thermostats, filters, and controls, and respond to service calls.

Qualifications

• EPA certification (or ability to obtain) for safe handling of refrigerants.
• Basic knowledge of plumbing and gas piping is beneficial, especially related to furnaces and water heaters.
• Ability to read and interpret technical manuals, diagrams, and construction documents.
• Valid driver’s license and reliable transportation to Castle Rock, CO.

Responsibilities

• Diagnose, service, and repair residential and light commercial heating and air conditioning systems including furnaces and heat pumps.
• Perform routine inspections, preventive maintenance, and system tune-ups.
• Install or replace components such as thermostats, filters, and controls.
• Respond to service calls, communicate findings and options to customers.
• Document work performed and maintain tools/equipment; collaborate with team to ensure safety and high-quality service.

Skills

Customer-focused communication

Troubleshooting HVAC systems

HVAC maintenance & repair

Preventive maintenance

Reading manuals/diagrams

Valid driver’s license

Team collaboration

Adaptability to weather conditions

Education

Trade school/apprenticeship training

HVAC certification (preferred)

Tools

HVAC testing equipment

Job description

Company Description

HX Mechanical specializes in light commercial and residential plumbing and heating projects, providing installation and service for water heaters, furnaces, gas piping, water piping, drain piping, and plumbing fixtures. The company supports a variety of building types and project sizes, offering practical solutions for everyday heating and plumbing needs. HX Mechanical also delivers grease interceptor design and construction documentation, supporting compliance with local codes and regulations. Team members work on projects that directly impact safety, comfort, and efficiency for customers in the region.

Role Description

The Heating Air Conditioning Service Technician is a full-time, on-site role based in Castle Rock, CO. This position is responsible for diagnosing, servicing, and repairing residential and light commercial heating and air conditioning systems, including furnaces, heat pumps, and related equipment. Day-to-day tasks include performing routine inspections, preventive maintenance, and system tune‑ups, as well as installing or replacing components such as thermostats, filters, and controls. The technician will respond to service calls, troubleshoot issues, communicate findings and options to customers, and ensure all work meets safety standards and regulatory requirements. The role also involves accurately documenting work performed, maintaining tools and equipment, and collaborating with team members and leadership to support high-quality, timely service.

Qualifications

• Strong focus on Customer Satisfaction, with the ability to communicate clearly, build trust, and provide professional, courteous service.
• Proficient in Troubleshooting HVAC systems, diagnosing mechanical, electrical, and airflow issues, and recommending effective solutions.
• Experience with Maintenance & Repair of heating and air conditioning equipment, including performing system checks, component replacement, and adjustments.
• Skilled in Preventive Maintenance, including scheduled inspections, cleaning, and optimizing system performance to reduce downtime and extend equipment life.
• EPA certification (or ability to obtain) for safe handling of refrigerants and adherence to environmental regulations.
• Basic knowledge of plumbing and gas piping is beneficial, especially related to furnaces, water heaters, and associated systems.
• Ability to read and interpret technical manuals, diagrams, and construction documents, with attention to detail and safety.
• Valid driver’s license, reliable transportation to job sites in and around Castle Rock, CO, and the ability to work in varied weather conditions.
• Previous experience as an HVAC or mechanical service technician, and relevant trade school, apprenticeship, or professional training preferred.