Adding value to our clients


Data Tech’s work force are all PAYE employees of the business, our investment in people and training is second to none in this sector, for example, not content with merely training to required standards our Site Persons In Charge (SPC) are mentored and schooled to a standard unparalleled by any of our competitors, the key to effective service delivery trackside is Safety.

The Safe Systems of Works we deploy for every shift are known and understood by our staff, our record of incident free and safe delivery is outstanding and again un-matched by our competition, Data Tech are committed to treating our SPC’s as Safety Critical.

Millions of meters trackside cabling installed, Fiber Optic, HV power, LV power, Signaling, Leaky Feeder and Communications cables have been successfully and safety installed for the past 17 years.

Data Tech has introduced innovations into this sector that are game changers in terms of safety and efficiency, Coiling technology, Track Screw, Concrete Screws, CAD Aided Gauging,  Shepard’s Crooks to name a few.

Photography by Monica Wells


London Underground - major contracts deliveries for re-signalling for Thales, Siemens.

London Underground - WiFi contract delivery

London Underground ESN/PCN delivery

Dockland Light Railway - Signaling contracts for DLR growth

Network Rail - Re-signaling contracts and small works

Logistics to Trackside

In 2006 Data Tech then Data Techniques were contracted to install the cabling and trackside assets for the Jubilee, Northern and Piccadilly line signaling upgrades (Piccadilly de-scoped circa 2009), the project had a particular challenge to overcome, access to the track from the street level for cables, it was clear from the start that the cables could be “Walked In” from the ticket office with cable drums set up outside the station or in the ticket hall, however, the older sections of the Jubilee and most of the Northern line  primary access would be via spiral staircases, walking the cable down a spiral stair is no easy task, man power heavy and an unacceptable risk regarding Sips, Trips and Falls.

The benefit of having a vast depth of experience in cabling, we designed and built the “Coiling Head” which can be seen in operation in the video attached, this video dates from 2006 when we first trailed the technology.

The aim is simple, change a large drum of cable into 25kg coils that can be carried into the station and down to the platform using, spiral stairs without creating a hazard, once carried to platform level, the coils are re-assembled onto a turn table and “spun” off into the tunnel.

This is highly successful and greatly commended by our clients and biggest advancement of traditional cable install in London Underground and Network Rail.


This video shows Delivery to installation of two Leaky Feeders for the ESN/PCN (Emergency Services Network/ Public Communications Network) trail site, The site is the tunnel section between Waterloo and Bank “The Drain” one of the most challenging tunnel sections in London Underground, driven deep under the River Thames, opened in 1898, built by John Mowlem & Co at a 2019 equivalent cost of £26 million pounds, it is 2,37km in length, to this day over 17 million passenger journey per year,

Using the Greathead Shield innovational (at the time) method  to bore the tunnel, the walls are formed from cast Iron Rings of seven segments, at some stage in the past we suspect the 1940/50’s the tunnel walls were lined with concrete, making securing fixings into the side walls an “interesting and challenging” task to be overcome.

Two Leakey Feeders and fiber optic links have been installed to achieve the toughest of test beds for the ESN/PCN. The project is currently in delivery.

A link to the history of this fascinating piece of London Underground history -  https://en.m.wikipedia.org/wiki/Waterloo_%26_City_line

Brent Cross 02.jpg


Unrivaled Contract delivery

  • Fibre Splicing Metropolitan and District lines 2000/ 2003

  • JNUP re-signalling trial sites Alcatel/Thales/Siemens 2004/2005

  • JNUP, Jubilee and Northern Line signalling Upgrade 2005/2014

  • DLR Extension - Canning Town to King George Vth 2006/2008

  • Victoria Line (VLU) major signalling upgrade 2008 to 2012

  • DLR King George Vth to Woolwich Arsenal 2011/2012

  • NR - Ipswich Chord cable and Civils 2014 to 2015

  • LU WiFi Network 2010 to on going

  • LU ESN Networks 2017 on going

  • LU PCN Network 2017 on going

  • 4 LM Thales 2017 on going

  • NR- WAML 2017/2019