Faster builds.

Lower costs.

Less waste.

Build With Steel.

A1 FIRE RATING

A1 FIRE RATING

Rw 57dB ACOUSTIC RATING

Rw 57dB ACOUSTIC RATING

30% FASTER BUILD

30% FASTER BUILD

100% RECYCLABLE

100% RECYCLABLE

Build with Steel

Turn your vision into reality with Build with Steel, the UK manufacturer of precision-engineered Light Gauge Steel Framing (LGSF) and Steel Framing Systems (SFS). From design and fabrication to on-site assembly, we deliver every component to order from our own factory in Hatfield, Hertfordshire, serving projects nationwide. This ensures faster steel frame construction, exceptional accuracy and reduced site disruption, giving architects and developers the confidence of a reliable delivery partner across the UK.

As part of the successful Forts Group, we combine decades of construction expertise with advanced off-site manufacturing to deliver high-performance structural steel solutions. At the heart of our offer is cold-rolled Light Gauge Steel Framing (LGSF), also known as a Steel Framing System (SFS), providing a precise, lightweight and highly efficient system ideally suited to modern residential, commercial and mixed-use developments. 

About us

COMBINING STRENGTH WITH EFFICIENCY

WHAT ARE THE BENEFITS OF BUILDING WITH STEEL?

Discover the benefits of building with steel — from sustainable, responsible construction to superior fire, acoustic and performance advantages. With faster, more predictable build times, it keeps projects efficient and on track.

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Why Choose Build with Steel?

Our LGSF systems are engineered for accuracy, speed of installation and consistent quality, making them a reliable choice for projects where programme, performance and buildability are critical. All steel frames are manufactured and erected in accordance with recognised industry standards, including compliance with SCI P402 Chapter 3.2, ensuring strict tolerances for verticality, line and level, and panel positioning.

Where your project requires it, we can also incorporate hot-rolled steel and hybrid structural solutions, combining materials to meet more complex structural demands or specific design requirements. This flexibility allows us to support a wide range of schemes - from mid-rise apartments to commercial buildings - without compromising on performance or efficiency. 

Every steel frame is precision-engineered to your exact specifications, delivering a solution that is both technically robust and commercially effective.

Technical Library
projects

Cornmow Drive, NW10

FMEX Construction is delivering a multi-phase rooftop development project at Cornmow Drive, creating additional residential spaces while upgrading communal areas and landscaping to...

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projects

Albany Court, 1 Trenmar Gardens, London NW10

FMEX Construction was tasked with an exciting project to enhance the residential offering at Albany Court by adding an additional floor at roof level. This ambitious development...

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projects

Old Kent Road, London SE1

FMEX delivered a sensitively designed rooftop residential scheme, creating nine new flats above a Georgian terrace of mixed-use properties.

Located along one of London’s oldest routes,...

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250+

Complete projects

102

Projects in progress

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