Premier Steel Building Company for the South East and across the UK
Get the perfect steel frame building, custom-built to match your exact needs. At Carnegie Steel Buildings, we handle everything—from consultation to completion—ensuring a smooth, stress-free experience. Let’s bring your project to life!

What we are
Carnegie Steel Buildings is a leading steel building company located on the Kent/Surrey border. We provide premium solutions for commercial and industrial steel frame buildings, offering turnkey construction services that deliver quality, value, and reliability. With expertise in designing and building robust, long-lasting structures, we cater to projects of all sizes across the UK. Whether you need a commercial warehouse, industrial unit, or bespoke structure, Carnegie Steel Buildings is the name you can trust.
Who we are
Carnegie Steel Buildings was established by lifelong friends David Mindham and Simon Barren, who share over five decades of collaboration and expertise. David has 40 years of experience in the steel and metalwork industry, while Simon has spent 35 years managing large-scale events and construction projects. Together, they have created a company combining over 75 years of steel construction knowledge to serve clients throughout the southeast and across the UK.


Why we do it
Our mission is to create exceptional steel-framed buildings that exceed expectations and deliver long-term value. At Carnegie Steel Buildings, we focus on building lasting relationships with clients by prioritising clear communication, meticulous project management, and outstanding craftsmanship. Your success is our success.
Premier Steel Building Company UK
At Carnegie Steel Buildings, we offer a comprehensive suite of steel frame building services, ensuring each project is delivered with precision, efficiency, and attention to detail. Our turnkey solutions include:
- Planning and design to meet industry standards and planning regulations.
- Demolition and groundwork to prepare your site for construction.
- Building supply and installation using top-grade materials.
- Landscaping and refurbishment to complete the final look of your structure.
Every project is overseen by a dedicated Project and Site Manager, ensuring smooth communication with clients and local authorities throughout the process. Our realistic milestones and transparent payment terms give you peace of mind while keeping your project on track.
Explore our portfolio of completed projects to see why Carnegie Steel Buildings is the steel building company of choice for businesses across the UK. Ready to start your project? Contact us today for a free estimate and let us bring your vision to life.
Get a free estimate for your commercial or industrial Steel building
Ready to get started on your custom steel building project? Our team is here to provide a tailored solution that fits your exact needs, from design to construction. Request your free estimate today and discover how we can deliver a durable, cost-effective building designed just for you. construction project
Carnegie Group®
Carnegie Steel Buildings is proud to be part of Carnegie Group®, a network of companies that collaborate to deliver comprehensive construction and architectural services:
Carnegie Architecture
Providing innovative and practical design solutions for residential, commercial, and industrial projects. Our expert team blends creativity with technical expertise to bring your vision to life, ensuring efficiency, aesthetics, and full compliance at every stage.
Carnegie Steel Buildings
Specialists in high-quality steel frame construction and turnkey building solutions, we deliver durable, cost-effective structures tailored to your exact requirements. From concept to completion, our experienced team ensures a seamless, stress-free process with expert craftsmanship.
BM Steels
A trusted supplier of premium steel products and bespoke fabrication services, we offer high-quality materials, precision engineering, and tailored solutions to support construction projects of any scale. We deliver strength and reliability you can depend on.