Aluminium Windows

A contemporary home is not complete without a stunning exterior. Cherwell Windows supply and fit beautiful aluminium windows which provide a sleek and elegant finish to any new build or renovation. The simple design of the aluminium frame is slimmer than those of timber or UPVC, allowing your home to be flooded with natural light and your views of the outdoors maximised.

We offer a choice of two aluminium window manufacturers; Internorm and Origin.


Internorm are an Austrian manufacturer of high-end aluminium windows and doors.  


Origin Windows

Aluminium Windows

Our British made aluminium windows are available in most RAL colours and are powder-coated for longevity. With a low 10 day lead time and a great range of options including dual colours and colour coded gaskets and hardware, our Origin windows are built to last.

With a 20 year guarantee if registered with Origin directly, there’s no compromise when it comes to getting the look you want with the peace of mind of strength and security. The casement window can be made up to 1000mm wide x 1800mm tall on side hung windows and up to 1500mm x 1500mm on top hung windows, and even coupled together for larger apertures.

20 year guarantee

20 Year Guarantee

A one of a kind twin flush casement

A one of a kind twin flush casement

Finger safe hinges

Finger safe hinges

High security locking mechanisms

High security locking mechanisms

Durable powder coating

Durable powder coating

Latest Technology slim yet strong aluminium frames

Latest Technology slim yet strong aluminium frames

Superior Weather Protection

Superior Weather Protection

More Handle Colours than any other window

More Handle Colours than any other window

Aluminium flush windows close up

Origin Flush Window

The Origin Flush window offers what no other aluminium window can. Window sashes that sit flush within the frame inside and out.

We recommend you visit one of our showrooms in Banbury, Beaconsfield or Henley on Thames to see this highly distinctive design. We guarantee you’ll fall in love with its superb looks, sleek appearance and style.

Not only does this make for a highly contemporary looking window, but one that is equally at home in older and traditional properties. This means a window product that has a design to meet any type of home and window requirement.

Aluminium Benefits

Warmth and Security

The subtle strength of aluminium provides your home with warmth and security, whilst supporting the current popular designs of vast window spaces and areas. Using 28mm sealed units and polyamide thermal break technology, Cherwell ensure that all windows conform to the Building Regulation requirements for new build, replacement and refurbishment projects.

Rest assured, the appearance of our Aluminium windows suffers no compromise when being designed. Aluminium windows are available in a variety styles including casement, storm, flush, bay and gable end as a well as a range of colours and glass strengths. Cherwell will prepare your windows to your specification, including dual colour windows – provide us with the RAL colour, and your windows will be blend seamlessly with your home.

Modern, contemporary and state of the art designs will allow your home to exude style and class which will be second to none. Our two suppliers of aluminium or aluminium clad windows are Internorm and Origin.

Thermal efficiency

The Origin Window is fitted as standard with a 35mm polyamide thermal break featuring interlocking barriers that minimise air flow through the system.

A bespoke cavity gasket is fitted into the internal chamber of the window between the sash and the frame (excl. the locking side) in order to further improve thermal efficiency.

The Origin Window is available with Aerogel as an optional upgrade. Aerogel is the most insulating material on the planet and allows the Origin Window to achieve a Window Energy Rating of A++ or up to a 0.9 U value.


The Origin Window is Pas 24 certified.

The casement windows have been impact tested up to 2633Pa and fixed windows tested to 3591Pa without failure in the crimps.

Origin hinges are built to ensure minimum wear with ferritic stainless steel which gives enhanced corrosion resistance and the hinges are tested to 50,000 cycles and feature a friction adjustment without metal to metal.

Hinge guards featuring patented anti-slip & lock technology are fitted as standard along the hinged side of the window.

Optional Extras

Restrictor hooks

Variable restrictor hooks limit the sash opening to 70mm but can be unhooked allowing the window to fully open.

Trickle vents

Origin’s trickle vents meet the minimum air flow rates as defined in the British Building Regulations. Trickle vents can be fitted through the sash or through a 35mm add-on.

Customer Stories


We recommend you visit one of our showrooms to experience the product for yourself and speak with one of our experts who’ll be able to help you decide which window and door is right for you. Our showrooms are located in;

  • Banbury, near to Oxford, Kidlington, Brackley and Bicester.
  • Henley on Thames, near to Marlow, Wallingford, Reading and Watlington
  • Beaconsfield, near to High Wycombe, Gerrards Cross and Amersham



What are the benefits of Aluminium Windows?

When a customer comes to one of our showrooms in Banbury, Beaconsfield or Henley on Thames, they either know what type of windows they want or they would like to know the benefits of each type of material. Here are a couple of guides to Aluminium windows: