As part of Network Rail's refurbishment of Waterloo Station, SAS was asked to design, manufacture and install suspended ceilings and wall cladding in the Peak Hour Subway, which transverses the platforms providing access to the tube and Waterloo and City lines for commuters at peak times.

Two parallel tunnels, the old Milk Arch and the Lift Valley, were linked at either end and three new staircases were installed to bring commuters down from the upper levels to the Milk Arch level.

In the Lift Valley SAS installed a flat 120 System suspended ceiling integrated at the perimeters with an accessible bulkhead for services.

The Milk Arch had a vaulted structural soffit and SAS designed a bespoke 330 System suspended ceiling with two vaults running the length of the subway which housed communications.

Between the two arches three staircases convey the public from the upper levels to the lower level and SAS designed a wall cladding system to cover all the centre and staircase walls, including various call points and service equipment.

SAS developed with the client and architect a lower band of stainless steel panels with resistance to impact and damage from pedestrian traffic; and a three panel upper band with SAS AG paint finish to provide anti-graffiti resistance. The task was made more complicated by the fact that the staircase hand railing and balustrading was installed prior to the wall cladding and could not be removed, therefore SAS's design for panels to the staircase cheeks had to allow fitting around handrail supports. All corners were protected with stainless steel angles and deep bulkheads integrated the wall cladding and suspended ceiling, cloaking runs and structure.