The next time you find yourself heading south on the Jubilee Line, look to your right just as you emerge from the tunnel into Bond Street Station. There you will see two Air Conditioning condensers mounted within a custom-built cage enclosure, all colour-matched to fit in with the surrounding iconic London Underground blue tiling.

This enclosure has been designed to allow the free passage of air, yet provide security against debris and the potential placement of suspicious packages.

Working with a small artisan metalworking company, the mesh, solid panels and supporting struts were cut and painted prior to being taken to site in kit form, allowing their installation around the previously painted and fitted Condensers to be carried out in just one single Engineering Hours shift.