Updated: Oct 2

London Bridge City sits in close proximity to HMS Belfast and is a combination of retail units, office space and 23 residential flats.

Cavendish Engineers’ innovative experience and expertise was used across different areas of the boiler house system at London Bridge City, resulting in an 82% energy saving for the complex.

Cavendish Engineers were brought in with a view to modernising and affecting improved efficiency and energy savings.


Over a 15-week period Cavendish Engineers oversaw the removal and replacement of the old system dating back to the Eighties and installation of new efficient and innovative technology.

The building’s existing cast iron boiler was cut into smaller sections, enabling it to be safely removed without damaging the existing fabric of the building and allowing it to be manually handled safely.

This was achieved using an Oxy Acetylene torch, lifting hoist plus frame and skates. A wall hung boiler system that was designed by Cavendish Engineers and featuring 3x100KW modules was installed and commissioned.

Working closely with the incumbent maintenance contractor, Cavendish replaced primary and secondary LTHW Pumps (duty and standby) while the system was live, due to the constant seven day heating requirement. Three condense and three chilled water pumps were also replaced with energy saving equivalents without any disruption to services.

Cavendish Engineers designed and installed (used a Spiering’s AT5 crane) a cooling coil and heat pump to the ventilation plant on the roof that would manage the temperatures of the corridors within the residential area of the complex.

With 20 people on site per day, Cavendish Engineers worked closely with a structural engineer around the management of the AT5 crane.

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