OCL has an established reputation and excellent working relationship with all key principal contractors on London Underground network. Our personnel have, for many years, been embedded in all Civils/Electrical & General Maintenance projects and are fully embedded with the required install standards and regulations. Projects ranging from the Fluor connect project, the SSL immunisation and Upgrade Programme (formerly managed by Metronet Rail).through to the ATC programme Greater Abelio upgrade, C2C upgrade, CP5 and most recently Cross Rail.

The SSL Upgrade Programme itself was responsible for delivering significant upgrades to Sub Surface Line Rolling Stock, Track Assets, Stations, Power and Signalling.

As part of the resignalling phase (track circuit immunisation) works, the LVAC Power Upgrade Project was required to provide interim power supplies to facilitate the new signalling kiosks being installed to feed the replacement track circuits.

This programme, along with the above mentioned cable management system projects, were rolled out at over the complete London Underground network and over multiple sites across the capital. OCL can and are proud to say that we have worked on all recent projects and at the majority of all station and track areas for London Underground and have carried out numerous successful projects over the years some of the areas as listed below:


  • Installation, cable pulling, termination and testing of cable supplies between the various items of equipment
  • Installation of anchor (knock-in) posts system
  • Installation of concrete trough routes
  • Installation of new steel posts in concrete footings
  • Fixing of new steel straps between posts complete back plates and hangers to provide new cable routes
  • Construction of concrete base slabs for equipment
  • Construction of draw-pit arrangements
  • Construction of duct and trough routes around base slabs and drawpits
  • Installation of new post routes and tray / trunking routes to link to trackside equipment
  • Installation of UTX’s
  • Installation of new buildings and switch rooms
  • Installation of OTX’s
  • Working in London Underground possessions
  • Working on and near London Underground and Network Rail running rails, London Underground and Network Rail dual certification required and all work conducted in accordance with the approved Work Package Plan, Task Briefing and RIMINI Plans, generic method statements and site specific instructions.


  • Harrow on the Hill
  • North Harrow
  • West Harrow
  • Barking (London Underground & Network Rail)
  • Upney (London Underground & Network Rail)
  • Upton Park
  • East Ham
  • Plaistow
  • Wimbledon (London Underground & Network Rail)
  • Rickmansworth
  • Chorleywood
  • Turnham Green
  • Northwick Park
  • Lilly Bridge Depot
  • Upminster Depot
  • Ealing Common Depot
  • Ruislip Depot


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