The Brief

County Hall in Norwich required replacement of ageing glazing across two wings, an internal courtyard and the tower block. The existing glazing had been in place for around 30 years, with reports of draughts and water ingress forming part of a wider building upgrade.

The programme needed to improve the building envelope while working across a large, occupied public-sector site and avoiding the embodied carbon associated with full façade recladding.

County Hall, Norwich – Window & Door Upgrade

The Outcome

The project delivered a major upgrade to the building envelope, replacing 580 ageing windows and 16 door sets with modern, thermally enhanced aluminium systems.

The new glazing improved thermal performance and comfort across the building, while solar-control glass helped reduce unwanted heat gain and glare without compromising natural daylight. By targeting the existing windows and doors rather than replacing the entire façade, the programme also extended the life of the building envelope while avoiding the additional embodied carbon associated with full recladding.

Delivering the programme across two wings, an internal courtyard and the tower block required a carefully phased approach around an occupied public-sector building. Fixed scaffold, specialist alloy towers and MEWPs provided safe access across the different elevations, allowing the works to progress while keeping disruption to building users to a minimum.

Our Solution

The programme combined a phased approach with carefully selected glazing and access solutions to improve the building’s performance while keeping disruption to a minimum.

  • Comprehensive survey and phased replacement programme across two wings, an internal courtyard and the tower block

  • 580 fixed-light aluminium windows with thermally enhanced double glazing

  • 16 thermally broken aluminium door sets

  • Solar-control glazing to reduce unwanted heat gain and glare while maintaining daylight

  • Fixed scaffold, specialist alloy towers and MEWPs used to provide safe access

At a Glance

Project Overview

  • Location: Norfolk

  • Sector: Public Sector / Municipal

  • Project scope: 580 windows and 16 door sets

  • Material: Thermally enhanced aluminium systems and solar-control DGUs

  • Delivery: Strict phased programme across multiple elevations

     

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