Underground Diesel Fitter

Oceanagold Corporation; Auckland; On-site; NZD 39,000 - 58,000; Full time

Job summary

Kirimana is a New Zealand‑owned recruitment and workforce contracting company seeking an experienced Duct Fitter to join our team for commercial and industrial HVAC installation. You will read drawings, lay out duct networks, fabricate and erect sheetmetal ducting and equipment, and work from plans while maintaining safety and quality on multiple sites. The role offers steady hours and development with leading contractors.

Qualifications

• Minimum two years of duct fitting experience or equivalent qualifications.
• Strong attention to air-tight seals and compliance with design tolerances.
• Ability to read and interpret construction drawings and HVAC layouts.

Responsibilities

• Install, assemble and secure ductwork and HVAC components on site.
• Measure, cut, bend, and shape sheetmetal to project specs.
• Read blueprints and coordinate with engineers and trades.
• Ensure safety and quality during erection and commissioning.
• Maintain tidy work area and document workmanship adjustments.

Skills

Duct fitting

Sheetmetal work

Reading blueprints/drawings

Hand and power tools

Work at heights

Education

Trade qualification in HVAC or related

Tools

Drills

Nibblers

Grinders

Pop riveters

Plasma cutters

Site hoisting equipment

Job description

Job Description

Role Summary

We are looking for an experienced Duct Fitter to join our team, specializing in commercial and industrial air conditioning equipment installation. In this role, you will read site drawings, lay out duct networks, and assemble, fit, and erect sheetmetal ductwork and HVAC plant equipment. Using core mechanical fitting techniques, you will measure, shape, align, and seal air distribution systems to ensure peak operational efficiency and compliance with building standards. (Note: This role excludes automotive/vehicle air conditioning).

Key Responsibilities

Plan & Interpret Specifications : Study engineering blueprints, HVAC layout drawings, and architectural specifications to determine suitable materials, installation methods, and line sequences.

Layout & Measurement : Perform precision site measurements, markout alignment lines, and establish suspension points for ducting runs and mechanical units using laser levels and measuring instruments.

Fabrication & Modification : Form, cut, bend, drill, and shape sheetmetal ducting, transitions, dampers, and bracketry on-site to fine tolerances using portable cutting, grinding, and shaping tools.

Fitting & Assembly : Fit fabricated ducting sections, plenums, flexible connections, attenuators, and subassemblies together; verify component clearance, alignment, and seal integrity.

Equipment Mounting & Erection : Erect, hoist, and secure stationary HVAC equipment (chillers, air handling units, fan coil units, split indoor systems, and exhaust fans) onto structural frames or acoustic supports.

Piping & Lines : Cut, thread, bend, and route secondary condensate lines, pneumatic control tubes, or refrigerant/fluid lines to support HVAC equipment operation.

Testing & Quality Assurance : Perform air-leakage testing, check airflow balance dampers, and inspect joined components for structural fit and insulation integrity prior to commissioning.

Maintenance & Troubleshooting : Diagnose mechanical noise or airflow faults during commissioning and perform operational maintenance on dampers, fans, and duct fittings.

Skill requirements

• At least two years of relevant work experience or acceptable qualifications.
• High attention to detail ensuring air-tight seals, clean aesthetic finishes, and strict adherence to design tolerances.
• Ability to visualize 3D duct runs around structural obstacles and other building services.
• Ability to work at heights, lift heavy metal sections and tools, and work overhead or in confined roof spaces.
• Proficient in using manual and power tools (drills, nibblers, grinders, pop riveters), hand‑held plasma cutters, and site hoisting equipment.
• Please indicate your immigration status in your CV.

The Opportunity

Kirimana is looking for experienced Pipe Fitters for commercial, industrial and mechanical projects across Auckland, Waikato and Wellington.

We have opportunities with established contractors delivering major new builds, upgrades and mechanical installations. We're looking for people with solid pipe fitting experience who can work accurately from plans, understand different piping systems and take pride in delivering quality work.

What We're Looking For

You’ll work as part of experienced mechanical teams installing and maintaining piping systems across a range of project environments. You’ll need to be confident using trade tools, working from drawings and completing installations accurately and safely.

• Install, assemble and fit pipework, fittings, valves and associated components
• Measure, cut, prepare and fit different types and sizes of pipe
• Read and interpret construction drawings, plans, measurements and pipe layouts
• Install brackets, hangers, supports and associated pipe support systems
• Work safely and efficiently while maintaining a high standard of workmanship

Ideally, you’ll have at least 2 years' relevant pipe fitting experience and be able to provide references supporting your work history.

What's In It For You?

We offer more than access to good projects. As a Kirimana employee, you’ll have the security of a full‑time employment contract, full employee entitlements, and a reliable payroll team that pays correctly and on time. You’ll work alongside some of New Zealand's best companies, with potential permanent employment opportunities and genuine pathways to develop your skills and career.

• Competitive hourly rates with reliable weekly pay
• Full‑time employment contracts with full employee entitlements
• Consistent hours with long‑term and ongoing project opportunities
• Work with reputable companies across major commercial, infrastructure and engineering projects
• Ongoing Kirimana support, with opportunities to develop your skills, responsibilities and earning potential

About Kirimana

Kirimana is a New Zealand‑owned recruitment and workforce contracting company, working alongside reputable businesses across construction, engineering and other industries. We connect capable, reliable people with quality work, strong companies and opportunities to build their careers.

We operate with integrity and value reliability, accountability and people who take pride in what they do. In return, we support our people, invest in their development and create opportunities to progress.

We are selective about the companies we work with and the people we represent because the right fit matters. Our goal is simple: build trusted relationships and create opportunities that deliver better outcomes for everyone involved.