27th November 2019

Next steps

In the former Transmission Hall the walls and soffits are now stripped and a crash deck has been installed in the Valve Hall below, so that the central void can be infilled. This gives a safe working platform for the insertion of the new steel frame and intermediate floors in the main works. My colleague Gloria gives a sense of the scale of the space – about 30m long, 12m wide and 12m high.


During my visit we compare the BS paint swatch samples from Sherwin Williams with the existing lead-based paintwork colours, before the last areas are removed, so that we know what the former colours were and can replace them accurately. They are a reasonably good match – this is the turquoise blue in the Power Hall.

The last part of my visit is spent 8m up in the spider MEWP in the Transmission Hall, courtesy of the Collins team, taking more detailed sections of the existing windows, so we can confirm these on our drawings for the replacement windows to the east and west facades. These are not in great condition, and are being replaced to provide double glazing and openable lights as part of the overall thermal improvements, with sections replicating the existing. Up close the sections are clear, albeit covered in a slurry of brick and paint dust from the quilling process.

The larger windows of the north and south facades have been removed or covered up with brickwork, but the upper part of the north window to the Valve Hall remains (behind a 9” brickwork skin). This allows us to take dimensions of its sections, including those outside by taking out a pane of glass and a glazing bar – which, helpfully, proved thick enough to take double-glazed units.