Corner Glazing | Frameless Wrap Around Glass

Frameless Corner Glazing: Dissolving the Boundary

Wrap around glazing — also known as frameless corner glazing — removes the structural mullion where two glazed walls meet at a building's corner. The result is a seamless, uninterrupted glass corner that opens up panoramic views and floods the interior with natural light from two directions simultaneously. It is one of the most visually dramatic techniques in contemporary residential architecture.

The engineering behind frameless corner glazing is precise. Structural loads that would conventionally be carried by the corner post are transferred to adjacent framing, concealed steelwork or structural glass fins. The glass panels are either butt-jointed with structural silicone or mitre-bonded to create a clean, frameless corner detail. We specify the approach based on your project's structural requirements, thermal performance targets and aesthetic preferences.

As a bespoke, architect-specified element, every wrap around glazing project begins with a detailed consultation. We review your architect's drawings, assess the structural implications of removing the corner post, and produce AutoCAD drawings that define every glass panel, structural connection and weathering detail. Our initial consultation establishes accurate costings before any commitment.

Frameless glass-to-glass corner joint — no visible mullion
Structural silicone bonding or mitre-bonded glass corners
Thermally broken aluminium framing on non-corner edges
Double or triple glazed units from 1.0 W/m²K
Compatible with sliding, fixed and opening panels
Concealed structural steelwork or glass fin support
Full AutoCAD drawings and structural calculations

Wrap around glazing is particularly popular for contemporary ground-floor extensions across Surrey and London — kitchen-diners opening onto gardens in Esher, open-plan living spaces in Wimbledon, and rear extensions in Kingston where the architect wants to maximise the connection between interior and exterior. The frameless corner transforms a conventional two-wall extension into a space that feels entirely open to the landscape.

Contemporary two-storey house with large glass windows and wooden features.

Technical Specifications
Colours & Finishes

Technical Specifications

Parameter	Specification
Corner Joint Method	Structural silicone bond or mitre-bonded glass
Corner Angle	Typically 90° (other angles achievable)
Glass Type	Toughened laminated safety glass
Glazing Units	Double glazed (28–44mm) or triple glazed
U-Value	From 1.0 W/m²K (double glazed, argon filled)
Structural Support	Concealed steel, glass fins or transferred to adjacent frame
Max Panel Height	Project-specific (typically up to 3,500mm)
Weathering	Full perimeter drainage and weather seals
Compliance	Building Regulations Part L (thermal), Part K (safety)

Configuration Options

Corner Glazing Configurations

Fixed Corner — Both glass panels are fixed, creating a permanently sealed panoramic corner. The simplest and most thermally efficient configuration.
Sliding Corner — One or both panels slide open, allowing the corner to fully open to the garden or terrace. Requires specialist track and threshold detailing.
Fixed + Opening — The corner panels are fixed with adjacent opening panels (sliding doors or casement windows) on one or both walls.
Acute/Obtuse Angles — Not limited to 90° corners — bonded glass corners can be engineered for acute or obtuse building angles.

Structural Solutions

Hidden Steel Goalpost — A steel frame concealed within the roof structure transfers corner loads to the foundations without a visible corner post.
Glass Fin — A vertical glass fin at or near the corner provides structural support while maintaining the all-glass aesthetic.
Cantilever Beam — The roof structure cantilevers over the corner opening, eliminating the need for any vertical support at the corner.

Glass Specifications

Glass Type	Build-Up	Best For
Standard Double Glazed	6mm / 16mm argon / 6mm Low-E	Most residential extensions
Enhanced Double Glazed	8mm / 20mm argon / 6.8mm laminated Low-E	Larger panels, enhanced security
Triple Glazed	6mm / 14mm argon / 4mm / 14mm argon / 6mm Low-E	Maximum thermal performance
Solar Control	Solar control outer pane in any build-up	South and west-facing corners
Low-Iron (Optiwhite)	Low-iron glass in any build-up	Maximum clarity for corner joint visibility

Glass Specification

All wrap-around glazing systems are supplied with high-performance double-glazed or laminated sealed units as standard. Upgrade options include:

Thermal performance — Warm-edge spacer bars, argon or krypton gas fill, triple glazing available
Solar control — Low solar-gain coatings for south-facing applications
Security — Laminated inner panes, PAS 24 tested units available
Acoustic — Acoustic laminated glass for road-facing or party-wall applications
Self-cleaning — Photocatalytic coating for hard-to-reach overhead glazing

Glass Options

All our wrap-around glazing systems are available with a choice of high-performance glazing to suit your project requirements:

Double-glazed sealed units — standard specification for thermal efficiency
Triple-glazed units — enhanced thermal and acoustic performance
Acoustic laminated glass — for noise reduction in urban and roadside locations
Solar control glass — reduces heat gain and glare while maintaining natural light

We specify the optimal glass configuration for each project based on thermal performance, acoustic requirements and Building Regulations compliance.

Colours & Finishes

Powder Coat Colours

All aluminium frame and fixing components are powder coated to order. Standard colours available from stock:

Anthracite Grey — RAL 7016 (most popular for contemporary projects)
Jet Black — RAL 9005
Pure White — RAL 9010
Traffic White — RAL 9016

Any RAL colour is available to special order, typically adding 2–3 weeks to lead time. For heritage projects, BS 4800 and NCS colours can also be matched.

Anodised Finishes

Silver Anodised — Natural aluminium appearance with enhanced corrosion resistance
Black Anodised — Deep, consistent black finish with a harder surface than powder coat
Bronze Anodised — Warm tone suited to traditional and heritage contexts

Structural glass framing is typically specified in minimal finishes — mill-finish anodised, satin black or anthracite grey — to keep the focus on the glass itself.

Frequently Asked Questions

Can the corner post really be removed from a glazed extension?

Yes. The structural loads normally carried by the corner post are transferred to adjacent framing, concealed steelwork in the roof structure, or a cantilevered beam. We work with your architect and structural engineer to design the appropriate structural solution, which is detailed on our AutoCAD drawings and verified by structural calculations.

Does removing the corner post affect thermal performance?

The frameless corner joint is sealed with high-performance structural silicone, which provides excellent weatherproofing. The adjacent glazed panels are standard thermally broken double or triple glazed units with U-values from 1.0 W/m²K. Overall wall U-values remain compliant with Building Regulations Part L.

Is wrap around glazing more expensive than standard glazed corners?

Wrap around glazing is a bespoke, architect-specified feature that requires specialist engineering, structural calculations and precision fabrication. It represents a premium over standard framed corners, but the visual impact and spatial quality it creates are transformative. We provide accurate costings during the initial consultation.

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