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21st century performance

Räum aluminium windows provide exceptional levels of performance. They are weather resistant, thermally efficient, and super secure. Aluminium is an inherently strong and durable material. It won’t rust, corrode, or deteriorate and can easily support large sections of glazing. Räum windows are suitable for a wide range of applications. From high-end commercial installations to modern residential developments, they won’t be beaten. Aluminium is an extremely versatile material. It can be formed into almost any shape imaginable. This allows us to create Räum windows in a huge range of designs. From bespoke portholes and over sized windows to bay and bow windows and flush casement windows, Räum windows provide truly unrivalled levels of design opportunity.

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RAUM aluminium colour swatch


Slim sightlines to maximise exterior views and create a cool contemporary look. Their slimline frames are strong but attractive and can be finished in a multitude of colour options.

Sliding RAUM aluminium windows


Choose double or triple glazing with U-values as low as 1.1 W/m²k. Passivhaus standards can be achieved to ensure that your windows are working at optimum levels.

White RAUM aluminium window


Fitted with multi-point locking systems, Räum windows can achieve industry renowned Secured by Design status. Their strong frames will resist any attempts at forced entry.

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    Durable and low maintenance finishes

    All our aluminium windows are finished with a durable powder coat paint application. Choose from hundreds of colours with matt or gloss finishes. Woodgrain and textured options are also available. Räum windows are also available in a special Coatex finish. The Coatex premium finish is low maintenance and scratch resistant and is available in four stylish metallic finishes.


    Smooth functioning and secure

    Compatible with a selection of durable and smooth functioning hardware. Choose from a range of handle styles to match your installation specifications. Räum window handles are available with either left hand or right-hand opening. They feature an attractive flush fitting push button and secure key locking mechanism.


    Double and triple glazed options

    Available with numerous glazing options. Select obscure glazing to increase privacy or leaded and decorative glazing to add character to a property. Choose double or triple glazing depending on your application. With a frame depth of 68mm they can accommodate a maximum glass thickness of 43mm.


    Expertly crafted windows made to your exact requirements

    At Dekko Window Systems, we manufacture all our windows at our Lancashire factory. We can create bespoke windows, designed, and fabricated to your exact specifications. When you want to offer your customers high performance, style, and customisation, choose Dekko Window Systems as your trusted supplier.

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    Sliding RAUM aluminium windows