Heritage Restoration–Bespoke W20 Arched Steel Door System, Bishop’s College

Overview

All Secure Doors Ltd. was appointed to deliver the replacement of an existing steel entrance at the historic Bishop’s College, a listed building where preserving the architectural integrity of the property was of paramount importance.

Working on heritage buildings requires a sensitive approach, combining traditional craftsmanship with modern engineering. Our team delivered a bespoke arched W20 steel door system, carefully designed to complement the building’s original character while providing improved durability, security and long-term performance.

From the initial site survey through to the final handover, every stage of the project was carried out with meticulous attention to detail and respect for the historic fabric of the building.

Scope of Works

Our turnkey package included:

• Comprehensive site survey and dimensional verification
• Technical design and manufacture of a bespoke arched W20 steel door system
• Careful removal of the existing steel door and frame
• Responsible disposal of redundant materials
• Protection of surrounding historic features throughout the works
• Supply of a hot-dip galvanised steel door system
• Premium architectural powder-coated finish
• Professional installation by experienced steel door specialists
• Final adjustments, quality assurance and client handover

Heritage Considerations

Working within a listed building required careful planning to ensure the original character of the property was preserved throughout the project.

Particular care was taken to:

• Protect the surrounding historic masonry and finishes
• Minimise disturbance to the existing structure
• Retain the original architectural appearance
• Manufacture the replacement door to accurately replicate the original arched opening
• Complete all works with minimal impact on the building and its occupants

Every stage of the installation was undertaken using techniques appropriate for heritage construction, ensuring the building’s historic significance remained uncompromised.

Survey & Design

A detailed site survey was carried out to capture the unique geometry of the existing arched opening and identify any structural considerations before manufacture.

Our technical team produced bespoke manufacturing drawings to ensure the new W20 steel door system matched the original proportions while incorporating modern fabrication techniques for improved performance and longevity.

Removal & Installation

The existing steel door system was carefully dismantled and removed to avoid damage to the surrounding masonry and architectural details.

Following preparation of the opening, the new bespoke W20 steel door system was installed with precision, ensuring:

• Accurate alignment within the original opening
• Smooth door operation
• Secure fixing to the existing structure
• High-quality perimeter sealing
• Exceptional finishing throughout

Throughout the installation, the surrounding building fabric was protected, demonstrating our commitment to preserving heritage assets while delivering modern construction standards.

Quality Assurance & Handover

Following installation, the door set underwent comprehensive quality inspections, operational testing and final adjustments to ensure optimum performance.

The project concluded with a full client handover, confirming the installation met both the aesthetic expectations of the restoration project and the functional requirements of a modern steel entrance system.

Project Outcome

The completed installation successfully restored the building’s entrance with a bespoke arched W20 galvanised and powder-coated steel door system that respects the historic character of Bishop’s College while delivering enhanced durability, security and long-term reliability.

The project demonstrates our ability to combine heritage conservation with modern engineering, delivering bespoke steel door solutions that preserve the past while meeting the demands of the future.

Specialist Heritage Steel Door Solutions

At All Secure Doors Ltd., we provide complete design, supply and installation services for bespoke steel door and screen systems across the UK, including:

• Listed and heritage buildings
• Conservation and restoration projects
• Commercial developments
• Educational facilities
• Critical infrastructure
• Industrial buildings

Our turnkey service includes site surveys, bespoke design, manufacture, careful removal of existing systems, professional installation, project management, quality assurance and client handover, ensuring every project is delivered with the highest standards of craftsmanship and care.