Curtain Walling

GEM Joinery offers complete timber curtain walling solutions, tailored to suit complex architectural and environmental demands. From concept to installation, we manage the entire process in-house — including system design, structural coordination, and integration with building services.

Our hardwood curtain walling systems are engineered to meet rigorous performance standards, including full compliance with CWCT testing protocols. We work closely with architects and contractors to develop bespoke fixing systems and detailing that achieve both technical precision and architectural intent.

Installations often include a combination of materials such as timber, glass, and steel — designed not only for performance but to act as a defining feature of the building’s façade. Our systems can also be integrated with modern building management systems, enabling active control of ventilation, shading, and thermal performance.

With extensive experience delivering on constrained urban sites and high-profile projects, GEM Joinery is trusted for its ability to coordinate complex programming, deliver flawless finishes, and meet demanding project requirements without compromise.

Our Approach

At GEM Joinery, our timber curtain walling solutions are built on early collaboration, technical expertise, and sustainable manufacturing. We work hand-in-hand with design teams from concept to installation—delivering precision-engineered systems that meet the highest standards in performance, safety, and visual impact.

Early Design Collaboration

We engage with the client’s design team at the pre-tender stage to provide valuable input on specification, budget planning, and build-ability. This early involvement ensures clarity, reduces risk, and sets the foundation for a smooth project journey.

Detailed Design & Engineering

Once a tender is secured, we develop comprehensive shop drawings, including structural calculations, U-values, and bracketry, for approval by the design team. Our in-house design team then produces detailed production drawings to guide the fabrication process.

Sustainable Manufacturing

All curtain walling is manufactured in our state of the art facility using FSC-certified timber. Our systems incorporate high-performance elements such as sashes, glazing, membranes, insulation, water barriers, and spandrel panels—ensuring robust thermal and structural performance.

Installation & Commissioning

Our team manages the full installation process, including all necessary method statements and health and safety documentation. Every system is tested and commissioned on-site, ensuring full compliance and long-term reliability.

Features & Benefits

Performance Excellence

Air tightness classification to industry standards
Water tightness static and dynamic testing
Wind resistance serviceability
Impact resistance certification

System Capabilities

Multiple glazing options (28-54mm depth)
Various mullion and transom configurations
Zone drainage options for high-rise applications
Integration with window and door systems

Long-Term Benefits

Enhanced thermal performance
Superior acoustic protection
Sustainable building solutions
Energy efficiency compliance

Weather Performance

Air classification standards
Water tightness certification
Wind resistance ratings
Impact resistance classification

Sectors We Operate In

Guaranteed Performance

All our installations are backed by project-specific guarantees and can be customised with:

Specialised glazing options
Solar shading integration
Bespoke capping options
Various finish options including powder coating and anodising