About US

CJSA is a leading family-owned and operated company and is a major construction supply company specialising in water stops and jointing solutions in concrete structures. With our head office in Adelaide, we are in close contact with our distributors, making sure our products are efficiently delivered right from our warehouse to your site to make sure you are ready for your project. Our focus is on supporting other independently owned and operated businesses, in turn, supporting local communities and families.

We are specialists in top of the line OEM and private labelling in the construction industry. Our product range has been developed over time to provide an extensive range of products from water stop systems, sealing systems, joint sealants, joint seals, and expansion joint CORK filler boards. Our service caters to help in a variety of different construction projects ranging from airports, bridges, tunnels, dams and levees, floors, roads, and spillways. 

What makes us stand out in our industry is our ongoing support to charity and our focus on how we can best assist others. CJSA has recently become corporate sponsors for Sunrise Cambodia and UNICEF in their Champion for Children program. We intend to provide the utmost care to make sure our services go towards a good, paying it forward to make a difference in the world. Rest assured, you will be able to have the best product solutions for your project and feel good about the flow on effect from your project!

If you are looking for a specialised service that is convenient, quick, and efficient, CJSA has the best range of products and services to triumph your construction project. CJSA will make all your construction work “concrete”!

Our quality products are manufactured at our ISO9001 certified state-of-the-art manufacturing facility and are available in CJSA brand and OEM.

Our Vision

To become the Expert and Market Leader in the field of Waterstops and Jointing Materials and to offer a comprehensive range of well designed products to the construction industry

Our Mission

Our mission is to offer high-quality products and services to our clients, with a strategic focus on value, support, honesty and integrity at all times. Our dedication to working with trusted partners is second to none.

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