Guy’s Hospital Chiller

The roof chiller replacement project at Guy’s Hospital in London is designed to enhance the operational efficiency of the healthcare facility. Situated at level 7 of the hospital, this initiative involves the strategic replacement of obsolete chillers within an open-air plant room, incorporating plant room construction techniques while aligning with modern hospital design and healthcare construction standards.

It involved a comprehensive structural and geotechnical assessment of the ground at St Thomas Street to ensure that no damage will occur to Thames Water’s underground assets during a crane lift operation. This assessment is accompanied by coordination with key third-party stakeholders, including Thames Water, Transport for London (TfL), Network Rail, the Metropolitan Police, the Shard, and Southwark Council, to secure necessary permissions and maintain smooth communication throughout the Roof Chiller Replacement project.

The existing chiller enclosure underwent decontamination and cleaning, which included removing bird netting. This cleared the way for replacing chillers 1 and 2, along with the associated plant and equipment. New structural support decks, walkways, and railings were installed to accommodate the placement of four new chillers and their associated plant and equipment. 

The temporary works enabled the use of a 350-tonne crane from Costain’s London Bridge Redevelopment site, ensuring precise installation of the four new chillers and their related systems.

The project also involved related mechanical and electrical operations on both the existing and new services, as well as restoration and refinishing of disturbed areas, including reinstalling bird netting. This meticulous approach to roof chiller replacement reflects our dedication to advanced hospital design and healthcare construction practices, meeting the operational needs of Guy’s Hospital while optimising the facility’s performance.