London Power Tunnels

We designed and fabricated the specialist brackets and steel support structures required for the installation of nearly 200km of cabling in the new London Power Tunnels. The Tunnels ensure the security of the city’s high voltage electricity network.

200km of cables

supported on our structures and brackets


below the surface of London

Providing security

for the city’s HV electricity network


The confined tunnel spaces, manual handling and working at height were all safety risks that our in-house team had to consider in the design and installation of the brackets and steel support structures.


Working closely with our installation colleagues and client, we attended design risk meetings to make sure that we delivered a product that could be safely installed. In order to meet project deadlines and produce the brackets to the required levels of quality, we also reviewed our fabrication process. This review led to a streamlining of our production processes to incorporate dedicated personnel, storage and quality assurance processes that were bespoke to the high volume fabrication of the brackets.


The brackets we created for this project ensured the effective and safe installation which was delivered on time, on budget and to the required quality standards set by National Grid. The design of the brackets was tailored to ensure that they were easier to install which was a key contributing factor to the project being delivered with zero safety incidents.

structural steel fabrication