Aluminium Round Windows
Round, Circular, Porthole & Pivot Aluminium Windows
Aluminium Bending Specialists Ltd manufactures bespoke round, circular and porthole aluminium windows, including fixed circular windows and round pivot windows. Made to measure for residential, commercial and architectural projects, every window is manufactured to suit your exact requirements.
Our round aluminium windows are manufactured using thermally broken aluminium profiles for excellent thermal performance and long-term durability. Every circular window frame is fully welded and made to measure at our UK factory, creating a strong, seamless finish with no visible joints.
Each round aluminium window can be finished in any standard RAL colour, with single or dual-colour options available. We work closely with trusted local powder-coating partners to provide a high-quality, durable finish with excellent colour consistency and long-term protection.
We can manufacture bespoke round and circular aluminium windows in a wide range of sizes within these specifications. If you require a particular diameter or unusual design, contact our team to discuss your project.
Bespoke Design Options
Our round aluminium windows can be manufactured with transoms and bespoke glazing layouts to suit your design. We also manufacture aluminium porthole windows, round pivot windows and other custom-shaped aluminium window solutions. Whether you need a traditional circular window or a completely bespoke design, our team can manufacture it to your requirements.
Round & Circular Aluminium Window Sizes
Fixed Round, Circular & Porthole Windows
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Minimum diameter: 400mm
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Recommended maximum diameter: 1800mm
Round Aluminium Pivot Windows
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Minimum diameter: 600mm
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Maximum diameter: 1500mm
Round Windows
Round aluminium windows create a distinctive architectural feature in both residential and commercial buildings. From small feature windows to large statement designs, each window is made to measure to suit the opening and style of the property.
We manufacture fixed and opening round windows in a range of designs, including bespoke configurations for projects requiring something outside standard window shapes.
Have a particular design in mind? Call our team on 01623 721 172 or send us your drawings and dimensions to discuss what's possible.


Circular Windows
Our bespoke circular aluminium windows are made to measure for residential, commercial and architectural projects. Each window is manufactured to the required dimensions, providing a distinctive feature while maintaining a clean, high-quality finish.
Fixed or Opening Circular Windows
Circular aluminium windows can be manufactured as either fixed or opening windows, depending on the requirements of your project.
For an opening circular window, a pivot mechanism allows the window to rotate smoothly around a central point. This provides ventilation while retaining the distinctive appearance of a circular window.
We can manufacture circular windows in a range of sizes, styles and configurations. If you have drawings, dimensions or a particular design in mind, contact our team on 01623 721 172 to discuss your requirements.
Round Windows that open
Our opening round aluminium windows combine the distinctive appearance of a circular window with practical ventilation. The opening mechanism allows fresh air into the room while retaining the clean, symmetrical appearance of the round frame.
Opening round windows can be particularly useful where ventilation is required without using a conventional rectangular window. Each window is made to measure, with the opening configuration designed around the size and requirements of your project.
Not sure whether you need a fixed or opening round window? Speak to our team and we'll help you choose the most suitable option for your project.


Bespoke Round Windows
Every project is different, which is why our round aluminium windows are manufactured to order rather than limited to standard sizes and configurations.
We can produce bespoke round windows to suit residential, commercial and architectural projects, including fixed windows, opening pivot windows, porthole-style windows and designs incorporating transoms or custom glazing layouts.
If you have an unusual size or design requirement, send us your drawings, dimensions or specifications and our team can advise on the best way to manufacture it.
What sizes do aluminium windows come in?
Our fixed round aluminium windows can be manufactured from 400mm diameter, with a recommended maximum diameter of 1800mm. Opening round pivot windows are available from 600mm up to 1500mm diameter. If you require a particular size, contact us to discuss your project.
What are the benefits of round window frames?
Round aluminium windows create a distinctive architectural feature while offering the strength, durability and slim sightlines associated with aluminium. They can be made to measure in fixed or opening designs and finished in a wide range of RAL colours to suit both traditional and contemporary properties.
How much do aluminium windows cost?
The cost of a bespoke round aluminium window depends on its diameter, specification, glazing, finish and whether it is fixed or opening. As every window is made to order, contact our team with your dimensions or drawings and we'll provide a quotation based on your requirements.
Aluminium Round Windows FAQs
Can you add blinds to round windows?
Blinds can be fitted to some round windows, although specialist or made-to-measure solutions may be required because of the circular shape. Depending on the design and application, shutters or other bespoke window coverings may also be suitable.
Are round windows energy efficient?
Round aluminium windows can provide excellent thermal performance when specified with thermally broken aluminium profiles and suitable glazing. The overall energy efficiency will depend on the frame, glazing and specification chosen for the project. Our team can advise on the appropriate specification for your requirements.
What type of buildings can have round windows?
Round aluminium windows can be used in a wide variety of buildings, including homes, extensions, new-build properties, commercial buildings and architectural projects. Because every window is made to measure, we can manufacture the frame to suit both traditional and contemporary designs.
Aluminium Round Windows | Gallery
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Quality
Every round aluminium window is made to measure by our experienced team in the UK. From bending and fabrication through to final assembly, we focus on accuracy, attention to detail and a high-quality finish.

Long Lasting
Aluminium is strong, durable and low maintenance, making it an excellent material for round windows. With the correct specification and finish, our aluminium frames are designed to provide reliable long-term performance.

Stylish
Round aluminium windows create a distinctive architectural feature in both traditional and contemporary buildings. With bespoke sizes, fixed or opening options and a wide choice of RAL colours, each window can be tailored to complement your project.













