HVAC Service Technician

EST Companies; Waipahu (HI); On-site; USD 52,000 - 76,000; Full time

Job summary

EST Companies in Hawaii seeks a dependable HVAC Service Technician to support atmospheric water generator systems and industrial equipment at customer sites. You will perform preventative maintenance, repairs, troubleshooting and equipment start-ups while delivering professional service and strong customer care.

This hands-on role thrives in fast-moving environments, requiring mechanical and electrical problem solving, safety compliance and clear communication with customers.

Qualifications

• EPA Refrigerant Handling Certification (if applicable) or equivalent training recognized in the field.
• Minimum 1 year of HVAC, industrial maintenance, or related technical experience.
• Strong knowledge of mechanical, electrical, plumbing, hydraulics, pneumatics and electronic systems.
• Ability to interpret schematics, wiring diagrams, manuals, and standard test instruments.
• Experience troubleshooting digital/analog circuitry and electric motors preferred.
• Proficiency with standard hand tools and test instruments.
• Strong customer service orientation and professional communication skills.
• Dependable, organized, self-motivated, and able to work under pressure.
• Valid driver’s license with excellent driving record.
• Ability to obtain and maintain credentials for customer sites including military bases.

Responsibilities

• Equipment Service & Repair — Perform preventative maintenance, inspections, troubleshooting, and repairs on HVAC and industrial equipment.
• Equipment Installation — Assemble, install, start up, and test new equipment at customer sites.
• Technical Troubleshooting — Diagnose issues using schematics, wiring diagrams, manuals, and standard test instruments.
• Field Service Work — Provide on-site and in-field service, including emergency repairs when required.
• Material & Parts Handling — Prepare parts, rework kits, and shipments; manage local pick-ups and deliveries.
• Documentation & Reporting — Maintain accurate service records, equipment histories, trip reports, and expense submissions.
• Customer Interaction — Build professional relationships with customer personnel and communicate service findings clearly.
• Vehicle & Workspace Care — Maintain clean, organized company vehicles and work areas.
• Safety & Compliance — Follow all EST safety procedures, operating standards, and regulatory requirements.

Skills

HVAC

Electrical systems

Mechanical systems

Customer service

Schematics interpretation

Safety compliance

Valid driver’s license

Tools

Test instruments

Hand tools

Job description

EST Companies was founded in 2006 as an industrial wash rack systems integrator. Since then we have expanded our capabilities to serve a variety of military and industrial clients. We procure tools/equipment, offer construction/renovation services and have become the go-to for complex, zero-exclusion project solutions globally. When federal clients have mission‑critical needs, we take ownership and stick around from concept through commissioning and long after. We offer comprehensive preventative maintenance/sustainment for all equipment and solutions we provide.

Find out more here: https://www.estcos.com/

Are you a hands‑on technician who enjoys solving complex mechanical and electrical challenges? EST Companies is looking for a dependable, skilled HVAC Service Technician to support atmospheric water generator systems and industrial equipment at customer sites. You’ll perform preventative maintenance, repairs, troubleshooting, and equipment start‑ups while representing EST with professionalism and strong customer service.

This role is ideal for someone who thrives in fast‑moving environments, enjoys working with their hands, and takes pride in delivering high‑quality technical service.

RESPONSIBILITIES

• Equipment Service & Repair — Perform preventative maintenance, inspections, troubleshooting, and repairs on HVAC and industrial equipment.
• Equipment Installation — Assemble, install, start up, and test new equipment at customer sites.
• Technical Troubleshooting — Diagnose issues using schematics, wiring diagrams, manuals, and standard test instruments.
• Field Service Work — Provide on‑site and in‑field service, including emergency repairs when required.
• Material & Parts Handling — Prepare parts, rework kits, and shipments; manage local pick‑ups and deliveries.
• Documentation & Reporting — Maintain accurate service records, equipment histories, trip reports, and expense submissions.
• Customer Interaction — Build professional relationships with customer personnel and communicate service findings clearly.
• Vehicle & Workspace Care — Maintain clean, organized company vehicles and work areas.
• Safety & Compliance — Follow all EST safety procedures, operating standards, and regulatory requirements.

Minimal travel required; occasional forklift or similar equipment operation may be assigned.

REQUIREMENTS

• EPA Refrigerant Handling Certification (Universal or Type III).
• Minimum 1 year of experience in HVAC, industrial maintenance, or related technical fields.
• Strong knowledge of mechanical, electrical, plumbing, hydraulics, pneumatics, and electronic systems.
• Ability to interpret schematics, wiring diagrams, ladder logic, and technical manuals.
• Experience troubleshooting digital/analog circuitry and electric motors preferred.
• Proficiency with standard hand tools and test instruments.
• Strong customer service orientation and professional communication skills.
• Dependable, organized, self‑motivated, and able to work under pressure.
• Valid driver’s license with excellent driving record.
• Ability to obtain and maintain military base access and other required credentials.
• Ability to lift 50 lbs routinely and up to 100 lbs occasionally; ability to work in demanding physical environments including kneeling, bending, climbing, and exposure to noise or hazards.

EST Companies is committed to maintaining a drug‑and alcohol‑free workplace. Pre‑employment testing is required for all new hires. As a Federal Contractor, EST follows Federal guidelines, which include marijuana as a prohibited substance.

We are anEqual Employment Opportunity (EEO) employer and welcome all qualified applicants. All candidates receive fair and impartial consideration regardless of race, sex, color, religion, national origin, age, disability, veteran status, genetic data, or any other legally protected status.

We want you to succeed. If you need a reasonable accommodation to navigate our application or interview process, please let us know by contacting [e-mail].

Learn more about EST Companies at www.estcos.com.