
If you’ve recently received planning approval for an extension, or glazing alteration in London, you are now at the most critical stage of your project:
Specification.
Sliding doors, bifolds, heritage systems and windows are often the defining feature of a London extension.
Call 020 341 10038/ book a design consultation.
Send us your plans, drawings or photos on WhatsApp and our technical team will quickly review your project and recommend the best aluminium systems.


Call Us Today: 020 341 10038
Email: planning@thefenestrationstudio.co.uk
We specialise in architectural glazing for:
• Contemporary rear extensions
• Basement extensions with light wells
• Side return infills
• Period property refurbishments
• High-end new builds
Our London projects typically include:
• Ultra-slim sliding doors (minimal interlocks, large-format panels)
• Corner and pocket sliding systems
• Large-span bifolds
• Heritage steel-look French doors and windows
• Minimal sightline aluminium windows
• Contemporary aluminium entrance doors
• Frameless rooflights and flat roof glazing
We are not a generic glazing installer.
We are a specification-led architectural glazing partner.

London builds are rarely straightforward.
• Tight access
• Steel coordination
• Party wall considerations
• Conservation areas
• Complex structural openings
• Raised thresholds and basement details
We review glazing in relation to:
• Finished floor levels
• Structural steels
• Drainage and threshold build-ups
• Sightlines from key internal spaces
• External elevations and symmetry
Glazing is never treated as an afterthought.
Smarts Alitherm Heritage
18 windows
4 double door sets
Anthracite Grey

Before manufacturing begins, we provide:
✓ Central Specification Verification
✓ 48-Hour Structured Quotation
✓ Clear system recommendation (not a confusing list)
✓ Dedicated project WhatsApp communication
✓ Experienced installation teams familiar with large-format openings
Every system is specified intentionally.

If you are:
• Finalising your architect’s drawings
• Coordinating steels with your builder
• Comparing slider or bifold systems
• Deciding between heritage steel-look or contemporary aluminium
• Wanting clarity before placing orders
We recommend reviewing glazing now — not once structural work has already begun.

We tailor our aluminium windows to your individual needs. Some of the options and styles we offer include:
Each unit is manufactured to measure, so we ensure a perfect fit, even in London’s challenging streets and building types.
With our national reach, we can supply and install your glazing project no matter where you are based in the UK.
Bifolding Doors, Sliding Doors, Entrance Doors, Internal Doors & Screens, Windows, Garden Rooms, Orangeries.
Aluminium
Simply fill in the form opposite and we will be in touch.

At Fenestration Studio, we work with the UK’s leading system companies and manufacturers to provide homeowners with the very best in aluminium windows and doors.
Our expertise spans decades in the glazing industry, giving us a complete understanding of how each system performs, what makes it unique, and where it fits best.
Whether you’re looking for architectural aluminium sliding doors, precision-engineered bifolds or beautifully crafted front doors, we've got you covered.
The Fenestration Studio
projects@thefenestrationstudio.co.uk
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