Rail Welding

Expert Rail Welding for Long-Lasting Results

Speak to our experts about your next project

“In the realm of rail welding, we possess both the capability and expertise to manage large-scale projects. We’re renowned for delivering state-of-the-art welding solutions to the rail sector at competitive rates without compromising quality.”

Karl Dean, Head of Welding

RSSI’s Rail Welding Division has been a frontrunner in providing specialised welding services to the rail and light rail sectors for many years. This legacy was further solidified after Carillion Welding’s acquisition by RSS Infrastructure in 2019. Strategically located in Doncaster, we also have regional offices in Alnwick, Cwmbran, Romford, and Stoke-on-Trent.

The Expertise of Our Rail Welders

Our continuous employee training and development programmes show our commitment to excellence. We offer Level 1-3 Stressing Officer competency training. This investment in our team ensures that we can undertake and excel in large-scale rail welding projects with fully qualified professionals.

Delivering Welding Services Across the UK

RSSI Welding is synonymous with high-quality welding solutions delivered at competitive prices without losing quality, productivity, or performance. Our collaborations span Network Rail depots in the UK, including partnerships with Balfour Beatty, Colas Rail, Babcock Rail, Trackwork, Pod-Trak, Volker Rail, Midland Metro, and Story Rail.

A Legacy of Rail Welding Excellence

Our Welding division boasts a stellar performance record, with a 99% first-time approval rate for our welds. Our senior management team, seasoned in overseeing major UK rail welding projects, reinforces our expertise. As proud corporate members of IORW, our enduring relationships built on trust make us Network Rail’s premier welding sub-contractor

Upholding Rail Welding Standards

RSSI’s Welding division has ISO 9001, 14001, 45001, and Achilles certifications. Our rail welding processes and systems meet the stringent standards of TWI ISO 38:34. From planning and scoping to project management, delivery, inspection & hand back; our comprehensive rail welding services cover it all.

State-of-the-Art Rail Welding Equipment

Our welding teams are highly skilled and equipped with the latest machinery. The recent introduction of the ROBEL 13:49 grinding machines, in line with the latest standards, ensures we provide top-tier services, especially to Network Rail.

Contact Our Rail Welding Division

Contact us at 0330 113 0004 for the best rail welding project delivery. Led by Karl Dean, Head of Welding and our team of rail welding specialists, we’re here to serve your needs.


Karl Dean

Head of Welding


Thermit Welding demonstration on track | Rail Welding Services | RSS Infrastructure

Welding Services

  • All aspects of Aluminothermic Welding: RT 1-4
  • All aspects of TW 1-5A, including extensive experience welding inner-city tram systems and crane rail
  • Aluminothermic weld inspection
  • Manual Metal Arc [MMA]: MMA 1-5
    Oxy/Acetylene and Oxy/Propane burning of rails and structures
  • RCF TR80 grinding teams with GSM’s
  • SO53/54 Switch & Crossing grinding and Inspection
  • VERSE Testing – a non-destructive system to measure the Stress-Free Temperature (SFT) of Continuously Welded Rail (CWR)

Frequently Asked Questions

RSSI Welding offers a range of welding services to the rail sector, including Aluminothermic Welding, Manual Metal Arc (MMA) welding, oxy/acetylene and oxy/propane burning of rails and structures, RCF TR80 grinding teams with GSMs, SO53/54 switch & crossing grinding and inspection, and VERSE testing.

Yes, RSSI Welding has the capability and capacity to cater to large-scale rail and light rail projects and has a reputation for delivering advanced welding solutions at a highly competitive rate without compromising quality. Their staff training and development investment means they can supply fully qualified teams.

RSSI’s Welding division holds ISO 9001, 14001, and 45001 certifications, as well as Achilles certifications. Their welding processes and systems are TWI ISO 38:34 accredited, demonstrating their commitment to delivering a high-quality service.


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Nottingham Tram Extension

RSS Infrastructure’s Welding Division successfully led a significant project on behalf of the client, Taylor Woodrow Alstom JV. The project was the Nottingham

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RSSI at CRSA Verse Testing

CRSA Verse Testing

RSS Infrastructure (RSSI) Welding collaborated with CRSA to carry out renewals work on the HBS route. RSSI collected stressing records and conducted Stress-Free Temperature (SFT) readings on reverse curb areas,

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