City Hall

Clifford Devlin were appointed to deliver the installation of new electrical and water services at London's City Hall, one of the capital's most recognisable public buildings.

The project involved excavating two trenches approximately 600mm deep to accommodate new utility connections while working within a busy public environment that required careful planning and strict safety controls. The works formed part of an upgrade to the site's infrastructure and had to be completed with minimal disruption to pedestrians and surrounding operations.

Before work commenced, detailed surveys were carried out to identify existing underground services, allowing the team to plan excavation routes and minimise the risk of striking buried utilities. The project required close coordination throughout, with excavation works progressing in carefully controlled stages to ensure safe access was maintained across the site at all times. Where trenches crossed pedestrian routes, temporary road plates were installed so members of the public could continue to move safely through the area while construction activities were underway.

Working adjacent to the River Thames and within a high-profile public location presented several challenges, including managing pedestrian movements, protecting existing infrastructure and maintaining a safe working environment.