Sightlines & Proportion
Aluminium can allow slimmer profiles, which helps garden views feel more open. The design still needs balanced mullion positions, door widths and roof geometry.
Slim profilesBalanced glazing
Aluminium Design Specialists | Established 1973 • Over 2,000 Projects Completed
Aluminium Conservatory & Orangery Design
Slim-Line Profiles • NGG Glass • Designed Around Your Home
A design-led guide to using aluminium in bespoke conservatories, orangeries and highly glazed garden rooms. Explore the details that shape the finished space, from roof style and frame colour to door layout, sightlines and glass specification.
Design Focus
Start Your Design Brief
Designed First, Specified Properly
This page is for homeowners who like the clean, architectural look of aluminium and want to understand how it can be designed into a conservatory, orangery or highly glazed extension.
For the full product route, start with our main conservatories and orangeries pages. This aluminium design page supports those core pages by focusing on the details that influence the final look, feel and everyday comfort of the room.
Frame proportions and sightlines
Roof lantern, lean-to or glazed roof style
Sliding, French or bi-fold door layouts
Colour, glass and comfort specification
Project Route
Choose the Right Aluminium Design Route
Aluminium can support several styles of glass room. These routes help you place the design brief within the wider Room Outside product range.
Conservatory Route
Best when you want a lighter glazed structure with strong garden connection, slim frame design and flexible roof options.
View main conservatories pageOrangery Route
Best when you want a more substantial extension feel, often with a solid perimeter roof, central lantern and aluminium doors.
View main orangeries pageGlassbox Route
Best when the brief is more minimal, with larger areas of structural or near-frameless glazing and a very contemporary finish.
View glassbox extensions
Design Decisions
What We Consider in the Design
The strongest aluminium projects are about proportion, light, access, comfort and how the new room belongs to the existing house.
Roof Style
A glazed roof, roof lantern or more solid orangery-style perimeter changes light, privacy and how the design meets the existing property.
Lantern roofsGlazed roofsDoors & Openings
Sliding, French and bi-fold doors each create a different relationship with the garden. Aluminium is useful where wider openings form part of the brief.
Sliding doorsBi-foldsGlass & Comfort
New Generation Glass can be specified to help manage solar gain, reduce heat loss and support more comfortable everyday use.
NGG glassSolar control
Budget Context
Indicative Aluminium Design Budgets
These figures are for early planning only. Final quotations depend on size, foundations, access, glazing, roof type, finishes and installation detail.
| Project Type | Typical Design Brief | Indicative Range | Design Notes |
|---|---|---|---|
| Compact aluminium conservatory | Smaller garden-facing room | £45,000-£55,000 | Focused layout with slim aluminium frames and considered glazing |
| Medium aluminium conservatory | Kitchen, dining or sitting-room use | £55,000-£75,000 | More generous roof, door and colour options |
| Large aluminium glass room | Wider openings or larger glazed area | £75,000-£95,000+ | Often includes upgraded glass or more complex site details |
| Aluminium-led orangery | Substantial extension feel | £70,000-£115,000+ | Perimeter roof, central lantern and bespoke detailing |
For broader budgeting, compare this page with our Glass Extensions Price Guide 2026.
Project Ideas
How Aluminium Changes the Feel of the Room
These examples show how aluminium can be used as part of a wider design brief, rather than as a stand-alone material choice.
Aluminium Orangery Design
Kitchen & Dining Room With a Lantern Roof
An aluminium-led orangery can give a kitchen extension a sharper architectural edge while retaining the substance of a more traditional orangery form. Dark powder-coated doors and a glazed lantern help connect the room to the garden.
Aluminium Conservatory Design
Garden-Facing Living Space
Where the view is the priority, aluminium can keep the framing visually lighter. The design can combine full-height glazing, considered door placement and NGG glass to help the room feel usable across more of the year.
Not sure whether your home needs a conservatory, orangery or glassbox route?
We can compare the options during a free home design visit, then shape the aluminium specification around your property, budget and preferred style.
Our Process
How the Aluminium Design Process Works
From first conversation to finished installation, the design develops around your property, preferred style and practical build route.
Step 1
Free Home Design Visit
We discuss how you want to use the room, assess the house and garden, and identify whether a conservatory, orangery or glass extension route is the better fit.
Step 2
Design & Specification
The design considers frame style, roof form, door layout, glass, colour, ventilation and any planning or building regulation considerations.
Step 3
Quotation & Project Route
You receive a project-specific proposal with a clearer view of cost, specification and next steps before manufacture and installation begin.
Step 4
Installation & Handover
Your approved aluminium design is manufactured and installed by our team, then checked with you before handover and aftercare support.
Helpful Next Pages
Continue Comparing Your Options
This design page supports the main Room Outside product pages. Use these pages when you want the broader product and installation overview.
Luxury Conservatories
See the wider conservatory range, including aluminium, timber and premium UPVC options.
Explore conservatoriesOrangeries
Compare contemporary and traditional orangery routes with lantern roofs and more substantial construction.
Explore orangeriesNew Generation Glass
Learn how glass specification can help manage solar gain, heat loss and year-round comfort.
Explore NGG glass
Expert Answers
Aluminium Design FAQs
Common questions about aluminium conservatory and orangery design, how this page fits the wider product range, and how glazing specification is chosen.
Aluminium can be used for conservatories, orangeries, roof lanterns, larger doors and highly glazed garden-facing rooms. The best route depends on your property, budget, planning position and how you want to use the room.
Yes. This page focuses on aluminium-led design details such as sightlines, door layouts, colour, roof style and glass specification. The main conservatories page covers the wider product range and project options.
Yes. Aluminium can work very well in orangery designs, particularly where slim doors, darker frame colours, a lantern roof or wider garden openings are part of the brief.
Yes. Aluminium conservatories and orangeries can be specified with New Generation Glass to help manage solar gain, reduce heat loss and support more comfortable everyday use.
Ready to Shape Your Aluminium Design?
Book a free home design visit and we will help you compare the right conservatory, orangery or glass extension route for your home.