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Keyfab Structural Steel

From bespoke residential steelwork to complex structural frames, Keyfab provides a complete design, fabrication and delivery service backed by the engineering expertise of Keystone Lintels. Working alongside architects, engineers, developers and contractors, we deliver practical, buildable structural steel solutions from concept through to installation.

Complete structural steel design, engineering and fabrication from one trusted partner

KeyFab provides bespoke structural steel solutions for residential, commercial and specialist construction projects across the UK and Ireland. Working alongside architects, structural engineers, developers and contractors, we manage every stage of the process from design consultation and engineering through to fabrication, delivery and technical support, providing one experienced partner throughout your project.

One Partner from Design to Delivery

From initial concept through to manufacture, KeyFab provides a fully integrated structural steel service, reducing coordination between multiple suppliers while ensuring consistent quality throughout the project.

Solutions Tailored to Your Project

Whether supporting bespoke homes, commercial developments or architecturally ambitious designs, our engineers develop practical structural steel solutions that integrate seamlessly within the overall building design.

Engineering expertise that delivers practical, buildable solutions

Every KeyFab project is supported by experienced structural engineers who understand not only steelwork, but how it integrates with the wider building structure. Using advanced detailing software and collaborative design processes, we help simplify construction while maintaining structural performance.

Engineered for Buildability

Our engineers produce accurate fabrication drawings, connection details and coordinated structural designs that support efficient manufacture and installation.

Manufactured with Confidence

Every component is manufactured under rigorous quality procedures and CE Marked to EN 1090 Execution Class 2, providing confidence in specification, manufacture and performance.

Supporting your project from enquiry to installation

KeyFab’s service extends beyond fabrication. Our engineering and project teams remain involved throughout manufacture, delivery and installation, helping keep projects on programme and providing technical support whenever required.

Delivery That Keeps Projects Moving

Steelwork is scheduled and delivered to suit your construction programme, helping minimise disruption on site and supporting efficient installation.

Engineering Support When You Need It

From initial enquiry through to project completion, our experienced engineers are available to provide guidance, answer technical queries and support successful project delivery.

A selection of completed projects demonstrating the versatility of KeyFab structural steel across residential, commercial and public sector developments.

The Keyfab Difference.

A Trusted Name in Structural Steel

Backed by the UK & Ireland’s leading steel lintel manufacturer, Keyfab combines specialist structural steel expertise with the engineering capability, manufacturing quality and customer support trusted by construction professionals across the UK and Ireland.

Everything Under One Roof

By sourcing both your structural steel and steel lintels from Keystone Lintels, you benefit from a single point of contact, coordinated engineering and simplified project management. One manufacturer, one technical team and one trusted partner throughout your project.

Collaborative Engineering

Our engineers work alongside architects, structural engineers and contractors from the earliest design stages, developing practical solutions that integrate structural steel and lintels within the overall building design.

Construction Knowledge

Our expertise extends beyond structural steel to understanding how steelwork interfaces with masonry, lintels and the wider building envelope, ensuring every solution is designed to work together seamlessly.

Signature projects

Explore our Signature Projects - a showcase of exceptional builds that highlight the strength, versatility, and innovative design solutions delivered by Keystone Lintels across a range of sectors and architectural styles.

View more projects

Get technical support

Simply fill out the form with your technical enquiry and our experts will be in touch.

Comprehensive technical support

Scheduling & specification service

Bespoke design service

Knowledgeable experts

Advice on optimum lintel solutions

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