About Us

At 33 FAB, we are specialists in high-quality metal fabrication and welding, serving clients across the construction, industrial and commercial sectors. Based in Corby, Northamptonshire, our team brings decades of hands-on expertise to every project. From bespoke architectural metalwork to full structural steel fabrication and installation.

We take pride in being more than just fabricators. We are problem-solvers, engineers and craftsmen committed to delivering metalwork that meets the highest standards of precision, safety and performance. Whether it’s a complex steel frame, a detailed weld or a fully assembled feature, everything we produce is built to last and made to spec.

Our in-house capabilities cover MIG, TIG and arc welding, metal cutting and preparation, powder coating management, and full-service assembly. We also provide design for manufacture support to help clients develop efficient, buildable solutions that reduce cost and improve speed to site.

At 33 FAB, quality control, fast turnaround and client satisfaction are at the heart of what we do. We work closely with contractors, developers, and manufacturers to understand project requirements and deliver tailored solutions with zero compromise.

If you need a reliable partner for fabrication and welding work, we’re ready to make it happen.

Our Services

Machinery Relocation

Complete Line Installations
Machinery Disconnection and Reconnection
Equipment Positioning and Alignment
Turnkey Relocation Project Management

Structural Steel Fabrication

Structural Frames and Access Steelwork
Mezzanines, Walkways and Platforms
Generator Bases and Skid Units
Step-Over Platforms and Support Frames

Architectural Metalwork

Custom Handrails, Balustrades and Guardrails
Architectural Features and Decorative Steelwork
Cladding Details and Finishing Elements
Bespoke Fabricated Installations

Welding Services

MIG, TIG and Arc Welding (Mild Steel, Stainless Steel, Aluminium)
On-Site Welding and Repair Works
Pipe Welding and Spool Fabrication
Food-Grade and Hygienic Welding

Pipework Fabrication

Stainless and Mild Steel Pipework
Spool Sections and Bracketry
System Integration and Installation
Welding to Specification and Compliance

Architectural & Structural Design

Architectural and Structural Steel Design
Technical Drawings and Site Surveying
Design for Manufacture (DFM) Consultation
Bespoke CAD Support for Fabrication

Powder Coating & Finishing

Powder Coating in Custom RAL Colours
Anti-Corrosion and Protective Finishes
Expert Finishing and Quality Control

Design for Manufacture (DFM)

Design Reviews and Fabrication Optimisation
Material and Tolerance Recommendations
Weld Reduction and Joint Simplification
Access, Fixing and Install Planning
CAD Adjustments and Technical Drawing Support

Complete Line Installations

Turnkey Production Line Installations
Machine Positioning and Alignment
Mechanical and Utility Connections
Access Platforms, Walkways and Operator Steelwork
Lifting, Logistics and Site Coordination

SafeContractor Approved by Alcumus

At 33 FAB, safety is integral to everything we fabricate, install, and deliver. We are proud to be an Alcumus SafeContractor approved business. A recognition that demonstrates our ongoing commitment to health and safety excellence in the fabrication and welding industry.

Alcumus is one of the UK’s leading accreditation bodies, and our certification confirms that we operate to the highest standards of safety, compliance, and risk management across all our workshop and site-based activities.

What SafeContractor Approval Means for You:

Certified Health & Safety Standards: Our operations follow rigorous safety protocols, ensuring a secure environment for both our team and your site.
Streamlined Procurement: Our accredited status helps you meet pre-qualification requirements with confidence, reducing admin and speeding up onboarding.
Proven Compliance & Best Practice: From metal cutting and welding to installation and access works, we comply with the latest regulations and site safety requirements.

When you work with 33FAB, you're choosing a fabrication partner that puts safety first. Protecting your team, your site, and your reputation.

UKCA Marking to BS EN 1090 – Certified Structural Steel Compliance

At 33 FAB, we are proud to hold UKCA (UK Conformity Assessed) certification to BS EN 1090-1, up to Execution Class 2 (EXC2). This demonstrates our commitment to meeting recognised British standards for structural steel fabrication, quality assurance, traceability and safety.

Our Execution Class 2 certification enables us to manufacture and supply structural steel components for a wide range of commercial, industrial and construction projects across Great Britain, delivering reliable, compliant steelwork manufactured to exacting standards.

What UKCA Marking Means for You

Compliant Structural Steel Fabrication
Our structural steelwork is manufactured under controlled Factory Production Control (FPC) and Welding Quality Management Systems (WQMS), in accordance with the applicable requirements of BS EN 1090.

Traceability & Quality Assurance
Our documented quality control procedures provide material traceability, manufacturing records and appropriate inspections throughout the fabrication process, ensuring accountability and consistent quality.

Certified for Demanding Structural Applications
Our Execution Class 2 certification enables us to fabricate structural steelwork for a wide range of applications, including walkways, staircases, mezzanines, platforms and load-bearing frameworks, subject to project-specific design and execution requirements.

By choosing 33 FAB, you're partnering with a UKCA-certified structural steel fabricator committed to delivering precision-engineered, compliant and professionally manufactured steelwork. From initial fabrication through to final quality inspection, we provide the confidence, reliability and technical standards your project demands.