Heritage & Retrofit Sensitivity

Retrofit solutions can improve security, fire performance, and usability while respecting the architectural identity of heritage and occupied buildings.

Security upgrades without losing character

We design door sets to preserve original visual intent while introducing modern resistance classes, hardware, and control options. This includes solutions that can match historical detailing and still meet current project risk profiles.

Typical retrofit constraints

• Limited wall thickness, irregular openings, and existing structural constraints
• Occupied buildings where installation windows are short and phased
• Requirements to retain external appearance in listed or protected assets
• Integration with existing access control and life-safety systems
• Coordination with glazing, frame interfaces, and finishing packages

Compatible with broader envelope upgrades

This approach also supports external steel glazing and related envelope interventions where security, thermal performance, and architectural continuity must be balanced.