Structural Glazing

Structural glazing turns glass from a simple infill panel into a load-bearing, architecturally expressive element of a building. At Lord Glazing, we design, fabricate and install frameless glass facades, silicone-bonded curtain walling and structural glass extensions for homes, offices and commercial premises throughout London. With 15+ years of specialist experience and more than 5,000 completed projects, our team delivers the seamless, light-filled glazing that defines modern architecture — engineered to perform, certified to comply and built to last.

Whether you are an architect specifying a glazed atrium, a developer cladding a new commercial frontage, or a homeowner dreaming of a frameless glass box extension, structural glazing demands precision engineering and faultless installation. Our FENSA registered, GGF member and TrustMark credentials, together with a 4.9★ rating and Checkatrade verified reviews, mean you can trust us to get it right first time.

Specialist structural glazing in London

Structural glazing is a discipline where the glass itself helps support the building envelope, often with minimal or completely hidden framing. The result is uninterrupted transparency, abundant natural light and a clean, contemporary aesthetic that simply cannot be achieved with conventional framed windows. London's mix of heritage streetscapes and cutting-edge developments makes it one of the most demanding environments for this work — and one where we excel.

Our specialists understand the structural loads, wind pressures and thermal movement that a glazed facade must accommodate. We engineer every project to the relevant standards, working closely with structural engineers, architects and main contractors to integrate glazing seamlessly into the wider build. From a single frameless picture window to a multi-storey curtain wall, we bring the same rigour and craftsmanship to every commission.

Applications & design options

Structural glazing is remarkably versatile. Across London we regularly deliver:

• Frameless glass extensions and box rooflights that flood kitchens and living spaces with daylight
• Silicone-bonded curtain walling for commercial frontages, atria and reception spaces
• Glass balustrades and Juliet balconies with structural channel or point-fixed support
• Walk-on and structural glass floors, links and bridges
• Frameless sliding and pivot doors integrated into structural openings
• Glazed canopies, link corridors and conservatory-style structures

Design options include fully frameless butt-jointed assemblies, point-fixed (spider) glazing, slim sightline systems and structural silicone bonded units. We can specify low-iron glass for maximum clarity, curved and bent glass for sweeping facades, and a range of solar-control or self-cleaning coatings to suit orientation and climate.

Materials & specifications

The performance of any structural glazing installation rests on correct material selection. We work with the full range of high-specification glass and bonding systems:

• Structural silicone bonded facades — units bonded to a carrier frame so no glass-retaining caps interrupt the surface, giving a flush, frameless appearance
• Toughened and heat-soaked glass for safety and to mitigate the risk of nickel sulphide inclusions
• Laminated glass for overhead, balustrade and walk-on applications where post-breakage retention is essential
• Low-iron glass for ultra-clear, colour-neutral transparency without the green tint of standard float
• Curved and bent glass for radiused facades, atria and bespoke architectural features
• Coloured, fritted and coated glass for solar control, privacy and design impact
• Double and triple-glazed sealed units with warm-edge spacers for excellent thermal performance

Every unit is specified with the correct glass build-up, interlayer thickness and bonding silicone to meet the structural and thermal demands of its location, calculated against wind and imposed loads.

Our process

We manage structural glazing from concept to completion through a proven, four-stage process:

• Design — we review architectural drawings, advise on feasibility, sightlines and glass specification, and produce detailed fabrication and setting-out drawings
• Survey — precise site measurement and structural checks ensure perfect tolerances before any glass is cut
• Fabrication — units are manufactured to exacting standards, toughened, laminated, bonded and quality-checked in controlled conditions
• Installation — our experienced fitters install using appropriate lifting and handling equipment, sealing and finishing to a flawless standard

Throughout, you deal with one accountable team, and every completed project is backed by our 10-year guarantee.

Standards & compliance

Structural glazing must comply with a web of regulations and standards. We work to BS EN 13830 for curtain walling, BS 6262 and BS EN 12600 for glazing and impact safety, and ETAG 002 guidance for structural sealant glazing. All work meets the relevant parts of the Building Regulations, including Part L (conservation of fuel and power), Part K (protection from falling) and Part N/Q where applicable. As a FENSA registered installer and GGF member, we self-certify compliant installations and provide full documentation, and we are fully insured for your peace of mind.

Structural glazing across London

We deliver structural glazing across all 33 London boroughs, from frameless garden-room extensions in leafy suburbs to high-specification commercial facades in the City and Canary Wharf. Whether your project is in Kensington, Camden, Greenwich, Richmond or anywhere in between, our local knowledge of London's planning constraints, conservation areas and access challenges helps the work run smoothly.

Looking for a complementary finish? Explore our architectural glass and security glass services, or get in touch via our contact page to discuss your scheme.

Pricing guide

Because every structural glazing project is engineered to its own specification, pricing is provided on a POA (price on application) basis. Costs depend on glass build-up, bonding system, size, access and structural requirements. We provide clear, itemised free quotes with no obligation, so you know exactly what is included. Get a free quote or call 020 3633 8141 to start the conversation.

Frequently Asked Questions

What is structural glazing?

Structural glazing is a method of installing glass so that it forms part of the building's structure, typically with minimal or hidden framing. Glass panels are bonded with structural silicone or held by discreet point fixings, creating a frameless, transparent appearance while safely carrying wind and imposed loads.

Is frameless glazing safe?

Yes. We use toughened, heat-soaked and laminated glass specified to the loads of each location, all installed to recognised standards such as ETAG 002 and BS EN 13830. Every installation is fully insured and covered by our 10-year guarantee.

Do I need planning permission for a structural glass extension?

It depends on the size, location and whether your property is listed or in a conservation area. Many extensions fall under permitted development, but we always advise checking with your local authority. We can support your application with detailed drawings and specifications.

How energy efficient is structural glazing?

Modern structural glazing uses double or triple-glazed sealed units with warm-edge spacers and low-emissivity coatings, achieving excellent U-values. We specify solar-control and thermally broken systems to keep interiors comfortable year-round and meet Part L of the Building Regulations.

How long does a structural glazing project take?

Timescales vary with complexity. After survey, fabrication of bespoke units typically takes a few weeks, with installation completed in days for most domestic projects. We provide a clear programme with your quote so you know what to expect.