Old Nichol Street, London — Architectural Leadwork Installation
Silk Leadwork delivered specialist leadwork installations at Old Nichol Street, London, working in collaboration with 6a Architects and main contractor John Perkins Projects as part of a technically demanding architectural refurbishment.
The project required bespoke lead detailing and careful coordination to achieve precise integration between roofing elements and the architectural design intent, ensuring both performance and visual consistency throughout the installation.
PROJECT OVERVIEW
Location: Old Nichol Street, London
Architect: 6a Architects
Main Contractor: John Perkins Projects
Project Type: Architectural Refurbishment
Scope: Specialist Leadwork Installation & Detailing
Services: Lead Cladding, Flashings & Bespoke Detailing
Status: Completed
The Challenge
The project involved the installation of leadwork within a highly detailed architectural scheme requiring precise execution and close collaboration with the design team. Complex interfaces between materials and structural elements demanded bespoke detailing solutions to achieve the required aesthetic and technical performance.
Works were carried out within a constrained urban environment, requiring careful sequencing alongside other trades to maintain programme continuity and design accuracy.
Scope of Works
Silk Leadwork carried out specialist leadwork installations across multiple roof and façade areas at Old Nichol Street, incorporating bespoke cladding, flashings, gutters, and pavilion roof detailing as part of a technically detailed architectural refurbishment.
Courtyard Leadwork
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Sandcast Code 6 lead fascia cladding installation
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Skirt and apron flashings to façade interfaces
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Formation of concealed secret gutters between cladding panels
Slate Roof Interfaces
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Installation of Code 6 lead box gutters
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Step flashings to slate roof abutments
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Cover flashings and apron flashings to roof junctions
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Integration with existing slate roofing systems
Flat Roof Detailing
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Code 5 cover flashings to lower-level felt roof areas
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Weatherproof junction detailing around roof perimeters
Pavilion Roof & Architectural Cladding
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Standing seam Code 6 lead fascia installation
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Welted soffit detailing
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Welted vertical lead cladding (Code 7)
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Perimeter flashings to flat roof areas
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Welted capping installations
Staircase Pavilion Works
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Lead-clad fascia installation
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Window threshold apron flashings
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Code 6 lead roof coverings
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Lead-lined box gutters
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Perimeter capping installations
Technical Standards
All leadwork installations were carried out in accordance with recognised UK industry standards and best practice, including BS EN 12588 — Rolled lead sheet for building purposes. Installation methods followed accepted detailing principles promoted through the Lead Sheet Training Academy (LSTA), ensuring appropriate allowance for thermal movement, durability, and long-term weather performance.
The Result
The completed works delivered precise and visually consistent lead detailing aligned with the architectural vision of the project. The installation achieved high-quality weather protection while maintaining clean architectural lines and detailing integrity.
Key outcomes included:
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Accurate execution of architectural detailing
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Seamless integration with façade and roofing elements
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Durable weatherproof installation
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Successful collaboration with design and construction teams
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.