Bespoke Shaped Aluminium Windows
We manufacture arched, angled, curved, circular and triangular windows, tailored to suit both traditional properties and contemporary designs.
Whether you’re replacing an existing shaped frame or planning a new opening, we provide expert guidance from concept through to completion.
✔ Made to order for any opening
✔ Slim aluminium profiles with strong thermal performance
✔ Expert technical support at every stage
Marlin Shaped Aluminium Windows, Angled, Curved and Slant Designs
We produce a wide range of bespoke shaped aluminium windows to suit unique architectural requirements:
- Arched and radius windows
- Triangular and gable-end windows
- Circular and porthole windows
- Curved-on-plan windows
- Angled and slant windows
- Feature glazing and shaped screens
- Shaped windows within larger glazing
If you have a specific design in mind, our team can assess feasibility and recommend the best solution.
Why Choose Aluminium for Shaped Windows?
Aluminium is the ideal material for shaped window designs due to its strength, flexibility, and slim sightlines.
- Strong enough for complex shapes and large openings
- Slim frames maximise natural light
- Low maintenance and long-lasting
- Powder-coated in a wide range of colours
- Suitable for both modern and heritage aesthetics
Profile Bending
We understand that properties with character and heritage features require specialist solutions that ensure homeowners can renovate properties sympathetically, without compromise.
Bespoke Curves Without Compromise
Every aluminium system we supply is available with profile bending, allowing frames to be shaped to suit curved openings and bespoke architectural designs. From graceful arches and sweeping bays to circular and radius features, our precision bending capabilities ensure your glazing integrates perfectly with the character of the building.
- Steel look, Heritage aluminium windows
- Contemporary windows
- MC 600 Bespoke Windows
- EcoFutural Aluminium Feature Windows
- Prestige Contemporary Windows
Maintaining the same slim sightlines, strength, and performance as standard frames, bent profiles deliver striking visual impact without compromising on quality, thermal efficiency, or durability.
Ideal for:
✔ Curved façades
✔ Circular and feature glazing
✔ Curved on plan
✔ Heritage restorations and bespoke designs
Expert Support from Design Stage
For complex glazing, early guidance makes all the difference.
Our team can help you:
- Assess whether your design is feasible
- Understand shape and size limitations
- Choose the right aluminium system
- Avoid costly redesigns later in the project
We regularly work with homeowners, architects, and contractors to ensure each design works both visually and technically.
ndow Designs
With a growing demand in the market for arched Aluminium windows and doors, our specialist profile bending service
offers the perfect solution for arched, curved and round products.
Designed for Complex Openings
Shaped windows are often used where standard frames won’t work. We manufacture solutions for:
- Period property renovations
- Barn conversions and heritage projects
- Contemporary architectural builds
- Extensions with unusual rooflines
- Feature glazing in living spaces
Every window is manufactured to your exact dimensions, ensuring a precise fit and a clean finish.
d Window Designs
Why Choose Marlin
- Specialists in bespoke aluminium glazing
- Experience with complex shaped designs
- Support from concept to completion
- High-quality manufacturing standards
- Trusted by homeowners and professionals
”Fantastic company, great product and extremely helpful throughout.”
Helen Westwell – Kendal, Cumbria
Performance Without Compromise
Our shaped aluminium windows are built to meet modern standards while maintaining slim, elegant sightlines.
- Thermally broken aluminium profiles
- High-performance double glazing
- Suitable for current building regulations
- Centre pane U-value from 1.2 W/m²
- Maximum overall U-value of 1.6 W/m²
You get the look you want—without sacrificing efficiency.
Frequently Asked Questions
If you require any support, please don’t hesitate to review our FAQs below or drop us a message on our contact form here
What are shaped windows?
Shaped windows are bespoke windows manufactured in non-rectangular forms such as arched, circular, triangular, slanted, or curved designs. They are custom-made to fit unique architectural openings and add visual interest to a property.
Can shaped windows form part of larger glazing systems?
Yes. They can be used as standalone features or integrated into larger glazed walls, screens, or curtain-wall style installations to create dramatic architectural designs.
How energy efficient are your windows & doors?
All of our products are very thermally efficient; they meet and exceed all current building regulations.
Our aluminium profiles are thermally broken and benefit from high performance double glazing with a centre pane U Value of 1.2 W/m2 as standard. The maximum overall U value of any of our products is 1.6 W/m2, with many of our door and window products offering even lower U Values.
Are bespoke shaped windows more expensive than standard windows?
Typically, yes. Custom manufacturing, specialised fabrication, and complex installation requirements generally make shaped windows more costly than standard rectangular units.
What information must be provided in order to get an accurate quotation?
We will ask you to provide the following information:
- Approximate dimensions (width x height)
- Basic design/layout
- Project location
How long will my quotation take?
We aim to return all quotations within 24 hours however large projects may take longer.
Start Your Project
Have a design in mind? Send us your drawings or speak to our team for expert advice.
Come and explore…
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