Michael +27 (0)71 442 5286 [email protected]

Proven Performers

Kay One delivers high value concrete products to the infrastructure construction and services industry, providing high quality professional solutions.

High Containment Crash Tested Barriers with Optimal Working Width (H2W4)
SANS/EN 1317

Our Products


Kerbs Home Page

High tensile precast concrete kerbs for physical and visual delineation and containment in transport, civic and commercial urban environments.

Concrete Road Barriers

Barrier Home Page

Turnkey manufacture, logistics, and installation of precast concrete barriers for high-performance applications that require durability, structural integrity, and uniform design.

Security Walls

Security Walls

Kay One Industries manufactures high-quality concrete Security Walls available for two-sided retention and containment.


Concrete Culverts

Kay One Industries manufactures a complete range of concrete culverts in a variety of profiles and sizes to deliver exceptional levels of strength and versatility. 

Retaining Walls

Concrete Walls Home Page

Freestanding precast concrete walls for bulk storage and retention. Ideal for heavy duty, long-term, and versatile requirements.

T Walls

T Walls Home Page

Easily installed concrete T walls formulated to ensure resilient double-sided retention and containment for temporary and permanent loads.

Kay One Feed Troughs

Kay Troughs

Kay One Industries manufactures precast concrete feed troughs for the feeding needs of your livestock and game in South Africa. 

Flagstone Pavers

Kay One Flagstone Pavers

Explore our exquisite range of high-quality flagstone pavers by Kay One Industries, factory direct from our premises to your home or business anywhere in South Africa.

Barrier Walls

T Walls Home Page

Kay One Industries manufactures high-grade barrier walls to suit a wide range of project needs.



Kay One delivers high value concrete products to the infrastructure construction and services industry, providing high quality professional solutions.


Kay One works closely with its clients to understand their unique requirements and to provide the highest level of customer satisfaction by supplying professional approaches to deliver quality outcomes.



At Kay One we offer complete precast products from consultation to design to constructing moulds to production to delivery to installation.

Kay One Industries is a wholly owned South African Company

As a specialist infrastructure construction and services precast provider, Kay One provides Clients with a single source solution at every stage of a construction project from planning to constructability studies to project management through to development and resolution challenges whilst effectively and efficiently managing resources timelines and budgets.

We have an industry reputation for being a leading provider to some of the world’s largest and demanding sectors, with our solid client base of repeat and referred clientele having been achieved through excellent craftsmanship, reliability, integrity and our exceptional approach to problem solving. We produce high quality  Kerbs, Road Barriers, Drainage Units, Bunker Walls, T Walls, Barrier Walls, Culverts as well as Custom Concrete Projects.

Contact Us Today

We create long term Business Partnerships

Kay One Industries Management and Staff have over 50 thousand kilometres of barrier logistic experience with successful Projects in South Africa, New York, Dubai and Perth WA.

Crash Tested Road Barrier System!

Bedrock Partnership
Michael Kretzmann

Michael Kretzmann

Countless times we were approached in desperation from many of our Clients to assist with precasting concrete products that would be too difficult to produce in situ on site. With careful understanding and planning in consultation with our Clients we designed and developed simple solutions, manufactured specific moulds, set up manufacturing lines and produced precision engineered precast concrete products.

Adolf Makonyololo

Adolf Makonyololo

Management and key Staff at Kay One have been instrumental in consistently delivering tens of thousands of precast products for all corners of the industry for over 30 years.

Adolf is our Controls Operational Manager and shares Operational Management.