About

Ironclad is a family-run fabricator in Attercliffe, the old heart of Sheffield steel. We've been welding here since 1998 and we still answer our own phones.
Inside the Attercliffe works
A welder at work
Since 1998

From an arch to a works.

  1. 1998

    Two welders and a lock-up

    Dave and Marie Holt start Ironclad in a single railway arch in Attercliffe with one MIG set and a borrowed van.

  2. 2006

    The first structural job

    A 40-tonne warehouse frame for a local haulier. It's still standing, and they're still a customer.

  3. 2012

    Moving to Attercliffe Works

    We take over a former crucible steel works and install two 10-tonne overhead cranes.

  4. 2018

    EN 1090 EXC3 certified

    Certification to the highest class most structural projects need, including bridges.

  5. 2023

    3D scanning in house

    Our own LiDAR scanner means we measure once and fabricate to fit first time.

  6. 2026

    Forty-two people strong

    Welders, fitters, draughtsmen, erectors and apprentices, all under one roof.

27Years welding in Sheffield
1,400+Projects fabricated
18,000tSteel processed
100%Coded welders on staff
How we work

Shop rules.

01

Measure twice

Every job starts with a proper survey. Rework is the most expensive thing in this trade.

02

Weld like it's load bearing

Because most of it is. Every weld is inspected, recorded and traceable.

03

Turn up

We answer the phone, we hit programme dates, and when we can't, you hear it from us first.

04

Train the next lot

One in six of our team is an apprentice. The trade only survives if someone teaches it.

The people

Who you'll deal with.

MH
Marie Holt
Managing Director
DH
Dave Holt
Founder & Workshop Lead
SM
Sanjay Mistry
Head of Design
KW
Kerry Walsh
Welding Coordinator (IWE)
Request a quote

Site visits are welcome. Put the kettle on at Attercliffe and see your steel being made.