Cousins Steel International
Aerial view of industrial development in KwaZulu-Natal
Est. 2001 · KwaZulu-Natal, South Africa

We BuildStructuresYou're Proud Of.

Structural steel design, fabrication & erection — delivered with precision and built to last.

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24+
Years in Operation
8
Industry Sectors
1000+
Projects Delivered
CIDB
Registered Contractor
About CSI

Structural steel specialists, since 2001.

Cousins Steel International is a KwaZulu-Natal-based engineering firm specialising in the design, fabrication and erection of structural steel for commercial, industrial and infrastructure projects across South Africa.

From compact warehouses to complex turnkey developments, we partner with clients to deliver steel structures that perform — engineered with precision, fabricated with discipline, and erected by craftsmen who take pride in their work.

  • Engineer steel solutions tailored to every site and budget
  • Maintain the highest standards of workmanship and safety
  • Deliver projects on time, every time
  • Foster long-term relationships with clients and partners
  • Empower local talent and contribute to South African industry
Work With Us
What We Do

End-to-end structural steel — under one roof.

We are a full-service structural steel contractor. Whether you need a standalone fabrication run or a complete turnkey build, our team integrates engineering, manufacturing and installation into a single, accountable workflow.

📐

Engineering Design

In-house structural engineering, detailing and BIM modelling — every connection calculated, every member specified.

🏗️

Steel Fabrication

Precision cutting, welding and finishing in our workshop, with quality control at every stage of production.

⚙️

Erection & Installation

Skilled riggers and project supervisors deliver safe, on-schedule erection on sites across Southern Africa.

🔑

Full Turnkey Package

From concept to handover — design, supply, fabricate and install. One contractor, one accountability.

Sectors We Serve

Eight industries. One trusted contractor.

Industrial

Industrial

Warehousing & Bulk Distribution

Warehousing & Bulk Distribution

Commercial & Retail

Commercial & Retail

Hospital

Hospital

Education

Education

Housing

Housing

Aviation

Aviation

Cold Storage

Cold Storage

Why CSI

Three reasons clients keep coming back.

Fully In-House Capability

Design, fabrication and erection under one roof. Tighter timelines, cleaner accountability, fewer surprises on site.

Professional Engineering Team

Qualified structural engineers and detailers ensure every member, weld and connection is calculated and signed off.

Quality at Every Stage

QA/QC procedures from raw steel intake through to final handover — backed by full traceability and documentation.

Credentials

Registered & compliant across all requirements.

CSI is a CIDB registered contractor and an active member of SAISC, adhering to the highest engineering and safety standards demanded by South African construction. Our team holds the certifications required to tender, execute and sign off projects of any scale.

CIDB Registered
BEE Compliant
ECSA · SAICE
SAISC Member
Latest Updates

From our LinkedIn.

Follow on LinkedIn
Cousins Steel International
1m ·

Prestige & credibility. When Toyota trusts you, you know you're doing something right. Cousins Steel International is proud to be delivering the mezzanine structure inside the Toyota facility — precision steelwork in a live, high-spec industrial environment.

#CousinsSteel #Toyota #MezzanineStructure #KZN
Cousins Steel International
2d ·

MP Kitchen is going up in Tanzania, and we couldn't be more excited to be part of this project. Cousins Steel International — delivering world-class steelwork beyond South African borders. No project is too big. No border too far.

#CousinsSteel #Tanzania #BuildingAfrica #StructuralSteel
Cousins Steel International
5d ·

Craft & pride — when the details are everything. Sheeting perfection at Intersite 126: clean lines, precise installation and a finish that speaks for itself. Good enough is never good enough.

#CousinsSteel #Intersite126 #SteelSheeting #Precision
Cousins Steel International
1w ·

Roof wetting done right! Proud to have completed this project for Shave & Gibson. Here's to great clients, great work and the exciting launch. Congratulations to everyone involved!

#RoofWetting #CousinsSteel #ShaveAndGibson #Construction
Cousins Steel International
2w ·

Another milestone reached. Proud to have played a part in bringing the Dynamed project to life, from concept to completion. Our team delivered quality steelwork built to last. At Cousins Steel International, we don't just fabricate steel; we build the structures that power industry.

#CousinsSteelInternational #SteelFabrication #KZNIndustry #BuiltToLast #TheBrickworks
Cousins Steel International
1mo ·

On-site inspection at Kamdar 2 with the ladies. Getting out onto site, seeing the work in progress and staying close to the projects that keep us moving forward. 💪

#CSI #Kamdar2 #TheBrickworks
Cousins Steel International
1mo ·

Progress built on precision. Our work at Forge Industrial in Ballito, KZN, continues to move forward, with each phase reflecting the planning, craftsmanship, and engineering expertise that define Cousins Steel International. From fabrication through to installation, every structural steel component is delivered with accuracy.

#CousinsSteel #CousinsSteelInternational #StructuralSteel #SteelFabrication
Cousins Steel International
2mo ·

Going to steel awards! Annual SAISC awards — nominated for best warehouse category. Intersite 126. Proud to see this project recognised among the best in South African structural steel.

#CousinsSteel #SAISC #SteelAwards #Intersite126
Cousins Steel International
10mo ·

Phenomenal progress continues at our new logistics hub for Shave & Gibson Packaging! Final touches are underway as we move closer to completion.

#CousinsSteel #LogisticsHub #SteelConstruction
Cousins Steel International
10mo ·

If you have driven past Umzinto lately... you've seen this taking shape. Cousins Steel is delivering precision fabrication and installation on a project that will serve the community for years to come. Strength you can see. Engineering you can trust. Proud to be building infrastructure that moves South Africa forward.

#CousinsSteelInternational #UmzintoProject #InfrastructureDevelopment #StructuralEngineering #FabricationAndErection #BuildingSouthAfrica
Get In Touch

Let's build something together.

Tell us about your project. We'll respond with the right engineer on our team and a clear next step within one business day.