CJSA is the Pacific region’s premier commercial waterstop, sealing and jointing solutions provider for the construction industry

CJSA has been supplying high-end Waterstop and Jointing solutions to the construction industry since 2018. We also offer technical support to our clients to assist in successful project completion. All our quality products are covered by full liability insurance for your peace of mind.

CJSA is a family owned and operated company with an extensive network of resellers across the Pacific region. We pride ourselves on our core values of Quality, Service & Integrity. When partnering with CJSA, you can rest assured that our years of experience within the Waterproofing, Sealing & Jointing Industry will ensure successful and high-quality project completion. CJSA is also a proud sponsor of Sunrise Cambodia, supporting Cambodia’s most vulnerable children.

CJSA manufacture and sources only the highest quality products for your projects. All products are covered by full liability insurance. Our partners are held to the highest quality manufacturing level, ensuring consistent high-end results at all times. We specialise in the supply of PVC and TPER waterstop. All are manufactured from raw material, the highest quality AS4020 hydrophilic waterstops from C.I. Takiron Japan, and self-expanding/non-expanding cork filler board, to name a few. 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”!