QUALITY DUCT MANUFACTURING
About us
CASSAiR is a small, family-owned business based in Sydney’s Sutherland Shire, proudly supplying customers across the greater Sydney region since 1991.
We specialise in the manufacture of high-quality sheet metal products, including air conditioning plenum boxes, trunking, drain trays and custom duct fittings. With decades of hands-on experience, we understand the importance of precision, reliability and fast turnaround times for every project.
We use only Australian-made materials, sourced from trusted local suppliers, ensuring every product meets the highest standards of durability and performance. We take pride in delivering workmanship that reflects the reputation we’ve built over more than 30 years in the industry..
We only manufacture using the best quality products…
Quality duct manufacturing & sheetmetal
