Skip to content
What We Offer
Sheet Metal Ductwork
Custom-fabricated sheet metal ductwork, crafted from high-quality materials, delivers strength, durability, and a clean, professional finish for reliable HVAC performance.
Read More
Preassembled Ductwork
Pre-assembled ductwork provides an efficient HVAC solution, manufactured off-site to precise specifications, reducing labour, saving time, and improving overall productivity.
Read More
Pre-Fabricated
Save significant installation time with pre-fabricated ductwork, reducing on-site costs, shortening project timelines, and improving overall site safety.
Read More
Spiral Ductwork
Sleek, rigid, and built to perform, spiral ductwork is ideal for exposed environments, delivering both visual appeal and reliable performance.
Read More
Round Ductwork
Designed for smooth airflow and minimal pressure drop, round ducting is ideal for efficient HVAC systems in exposed or concealed layouts.
Read More
Oval Ductwork
Oval ductwork is ideal for exposed environments, maximising available space while maintaining strong airflow performance and a clean, modern appearance.
Read More
Duct Board Insulated Ductwork
Ductboard offers excellent thermal performance, helping to reduce energy loss within HVAC systems. It is lightweight, easy to install, making it a practical choice for a wide range of applications.
Read More
Subducts & Plinth Surrounds
Tidy up your plantroom or riser with custom-made subducts and surrounds designed to house and protect services neatly. Structural fabrication including framing, sub-ducts, plinths, and security grilles, engineered for strength, precision, and reliable performance across demanding applications.
Read More
Ductwork Delivery / Transport Service
Ductwork is only useful if it gets to the site on time, intact, and ready to go. At Kavanagh Industries, we’ve built our delivery and transport systems to support the pace and precision of today’s construction schedules.
Read More
Reliable, High-Performance Ductwork Built for your Project

When you’re running a major commercial or industrial build, ductwork is often one of the most critical and underestimated components. Poorly made or poorly delivered ductwork can blow out building timelines, increase labour costs, and compromise performance.

At Kavanagh Industries, we solve those problems by manufacturing high-quality, airtight ductwork delivered in continuity and ready to install. We work closely with our trade partners to make the process smoother and faster.

Contact Us

Capability That Scales With you

At Kavanagh, we deliver complete, tailored solutions that align with your project goals, reduce installation time, and minimise site disruption. Our expertise spans custom systems for:

  • HVAC ductwork (supply, return, outside air)
  • Exhaust applications (kitchen, toilet, car park, garbage)
  • Smoke exhaust
  • Stair pressurisation
  • Clean rooms
  • Make-up air systems
  • And more

We fabricate all ductwork primarily using galvanised steel, with options in stainless steel, aluminium, and ductboard. Built to suit pressure classes from 500PA to 2500PA, our duct systems feature sealed Snaplock and Pittsburgh seams and standard TDF connectors for airtight performance.
While we typically work from supplied drawings, our team can provide design advice, value engineering, and constructability input. With the capacity to deliver multiple large-scale projects at once, we back our fabrication with expert estimators, 3D modelling, and detailed BOMs to ensure speed, accuracy, and complete confidence in every order.

Read More

Get A Free Quote

Have a question or need a quote for your next project? Get in touch with the team at Kavanagh Industries today. We're here to provide expert advice, fast turnaround times, and reliable ductwork solutions tailored to your needs.

174 Stradbroke Street
HEATHWOOD QLD 4110

Quality That Drives Performance

We never compromise on quality. It’s what sets us apart.

  • Every order is built to AS 4254.2, ensuring safety, performance, and compliance.
  • Fully sealed seams to reduce leakage and increase system efficiency.
  • Multiple QA touchpoints across fabrication to ensure precision, airtightness, and durability.
  • All ductwork is custom-made in-house to your exact specs, never off-the-shelf.
  • GPS-tracked in-house logistics fleet ensures secure, accurate, and on-time delivery.
  • 24-hour fast-track service available for urgent small orders.
  • 100+ certified lifting cages support safe and efficient on-site handling.

Decades of Ductwork Done Right

With more than 50 years of industry experience, Kavanagh Industries has built a strong reputation across NSW and Queensland for reliability, innovation, and transparency.

  • Established in 1969, Kavanagh has been producing ductwork under the KI brand for decades.
  • We’ve supplied major commercial and industrial projects across sectors, including healthcare, data centres, education, and large-scale retail.
  • Our team can provide client references and case studies upon request, with a portfolio that demonstrates our capability across both complex and high-volume projects.
  • All work is fully insured and fabricated with the highest quality standards.
The Ductwork Supplier You Can Rely On - First Time, Every Time

When your project can’t afford delays or defects, we’re the team you call.
We don’t do transactional work; we build trade partner relationships. From first quote to final delivery, Kavanagh Industries is here to support your project with premium ductwork, great service, practical advice, and delivery you can count on.

Get in touch with our team to discuss your requirements or request a custom quote today.

Trade Partners
Back To Top