HVAC Service Technician

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

Job summary

EST Companies LLC is seeking a hands-on HVAC Service Technician to support atmospheric water generator systems and industrial equipment at customer sites in Waipahu. You will perform preventive maintenance, repairs, troubleshooting, and equipment start-ups while representing EST with professionalism and strong customer service.

This role emphasizes on-site field work, interpreting schematics, and collaborating with customers to ensure high-quality service and reliable operation of HVAC and

Qualifications

• 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; kneeling, bending, climbing, and exposure to noise or hazards.

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

EPA Refrigerant Handling

HVAC Systems

Electrical & Electronics

Mechanical & Plumbing

Schematics & Wiring Diagrams

Customer Service

Driver's License

Education

EPA Refrigerant Handling Certification

Tools

Test Instruments

Hand Tools

Job description

Waipahu, United States | Posted on 07/24/2026

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.

RESONSIBILITIES

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.

EST Companies LLC is an Equal Opportunity Employer and does not discriminate on the basis of race or ethnicity, religion, sex, national origin, age, veteran disability or genetic information or any other reason prohibited by law in employment.