Westminster Hall Lantern — Specialist Leadwork Installation

Silk Leadwork carried out specialist leadwork installation works to the historic lantern structure above Westminster Hall as part of ongoing conservation and refurbishment works within the Palace of Westminster estate.

Working as a specialist labour subcontractor, the project required careful installation of traditional lead detailing to meet heritage conservation standards while maintaining the architectural integrity of this nationally significant structure.

The Challenge

Works were undertaken within a highly sensitive historic environment requiring strict adherence to conservation principles and careful handling of traditional materials. Access constraints and the complexity of the lantern structure demanded precise installation techniques while maintaining protection of surrounding historic fabric.

All works were coordinated within a controlled heritage setting alongside specialist trades and conservation requirements.

Scope of Works

Silk Leadwork carried out specialist leadwork installation works to the lantern structure above Westminster Hall as part of wider conservation and refurbishment works within the Palace of Westminster estate.

Heritage Detailing

• Application of traditional leadworking techniques

• Careful alignment with conservation detailing requirements

• Precision installation to maintain architectural character

Technical Standards

All leadwork installations were carried out in accordance with recognised UK industry standards and heritage conservation practices, including BS EN 12588 — Rolled lead sheet for building purposes. Works involved the installation of Code 7 sandcast lead using traditional detailing methods appropriate to historic construction.

Installation followed accepted principles promoted through the Lead Sheet Training Academy (LSTA), ensuring correct allowance for thermal movement, durability, and long-term weather performance while maintaining the architectural integrity of the historic lantern structure.

The Result

The completed works reinstated durable weather protection to the Westminster Hall lantern while preserving the historic character and architectural detailing of the structure. The installation of Code 7 sandcast lead provided a sympathetic and long-lasting solution aligned with conservation requirements for this nationally significant building.

Key outcomes included:

• Accurate installation within a Grade I listed heritage environment

• Use of traditional leadworking techniques appropriate to historic fabric

• Durable and weatherproof lead coverings to the lantern structure

• Careful integration with existing architectural detailing

• Contribution to the ongoing conservation of the Palace of Westminster estate

Project gallery

Planning a Similar Project?

If you are planning a commercial refurbishment or heritage project requiring specialist leadwork, Silk Leadwork can provide experienced installation and technical expertise from early planning through to completion.