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Steel Style On Shard's Streets

One America Street back in 2018 when the project was completed.
13 June 2019

The headquarters of a design practice, located on a street a stone's throw from The Shard and the redeveloped London Bridge Station, provide a stylish example of steel windows in urban landscape.

Steel Window Association member West Leigh was selected to supply a variety of frames for the offices of TP Bennett at One America Street when the practice undertook major renovation.

The project required very close coordination in replacing large ground and upper floor windows in the main elevations. The work involved carrying out a precise survey of every window opening affected for West Leigh's factory to produce the new frames in sympathetic styles.


What went in?

Employing W20 and W40 as well as Schuco Primo profiles, West Leigh factory painted the windows in RAL 7024 Anthracite Grey. All the fittings were specified with a satin chrome finish. Measures such as modern weather-stripping and Argon or Krypton filled glazing units with low-E glass ensure the replacements offer far superior energy performance to the original timber fenestration.

The W20 windows, which replaced the old ground floor timber frames, contain 16mm IG units with 4mm clear toughened outer and 4mm soft coat Low-E inner panes, while Krypton fills the 8mm cavity. The W40 frames on the ground floor (which faces out on to Keppel Row) feature 24.8mm glazing units made up of a 10mm toughened outer leaf, and a 6.8mm acoustic laminate, soft coat inner leaf, again with Krypton in an 8mm cavity.


Fixed lights

Replacing old bay windows on the America Street façade, the large single pane fixed lights are fabricated from Schuco Primo steel sections and accommodate 34mm sealed units. These comprise a 10mm solar control outer and 10mm clear toughened inner leaf, this time with Argon in the 14mm cavity.


In with the council

The Senior Estimator on the project for West Leigh, David Cox, says: “One America Street was a challenging project because of the scale of the building and the fact that TP Bennett’s staff remained in occupation throughout. However, we worked closely with Southwark Council - in relation to a road closure for a crane - to minimise disruption. It remains a contract we are very proud to have been involved with.”



Members of the Steel Window Association offer a UK wide service for the repair and replacement of various types of old metal windows, doors and screens, as well as being able to manufacture new fenestration which fully meets the requirements of the building regulations.

Picture: One America Street back in 2018 when the project was completed.


Article written by Brian Shillibeer | Published 13 June 2019


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