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.

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.

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.












