All Clement steel windows are hot dip galvanised to EN ISO BS:1461:2022 and available in a choice of highly durable Akzo Nobel powder paint colours. The paint is baked on at a high temperature to give a superb finish.

We recommend a range of classic steel window frame colours (illustrated below) that in our experience look wonderful and retain their appeal over time. White, cream white, black and grey metal window frames are considered classic colours for listed building refurbishment projects.

We offer an extensive number of RAL colours within our standard price range. Please ask our Sales Team for the current list.

A dual colour finish is also possible, where the window frame is painted one colour externally and a different colour internally and we offer specialist colours (eg metallics) for both paint and silicone too. You may be interested in our Naked Steel windows which offer industrial style alternative finishes. Costs and lead times might be affected - just speak to a sales advisor for more information.

Ultimately the choice is yours and here at Clement we are able to offer you any colour you can imagine - take a look at this recent case study where the homeowner opted for blue steel framed windows and doors. We can also give you the option of the super durable powder coat colours in the Interpon range – please ask our sales team for more information.


  • Deep Black: RAL9005

    Available in matt and semi-gloss

  • Graphite Grey: RAL7024

    Available in matt and semi-gloss

  • Anthracite Grey: RAL7016

    Available in semi-gloss

  • Cream White: RAL9001

    Available in matt

  • Traffic White: RAL9016

    Available in matt and semi-gloss

  • Pure White: RAL9010

    Available in semi-gloss


Shown below are the eleven standard silicone colours which need to be considered when choosing the colour of your window frames.

  • Black

  • Dark Bronze

  • Anthracite

  • RAL 7016

  • RAL 7022

  • Grey

  • Brown

  • Rustic Red

  • Buff

  • Portland

  • Translucent

  • Magnolia

  • White


Clement Steel Windows Glazing


We offer five different styles of glazing, from clear glass, to genuine lead in an arrangement to match the pattern of your original leaded lights, to the G+ and Fenestra joint systems which are unique to Clement. All of these options have superb features which faithfully replicate those of original steel windows.

Clement Steel Windows Colours


Our steel windows are hot dip galvanized and available in a choice of highly durable Akzo Nobel powder paint colours. Clement Windows provide an average paint coating in excess of 100 microns on flat surfaces – the industry standard calls for 60/70 microns. Order from a wide range of RAL colours to match your scheme or choose different colours for the inside and outside of your windows.

Clement Windows Accessories


Browse a select range of accessories which perfectly complement our stunning steel windows, doors and screens. Carefully crafted in a number of different styles and available in a choice of colours and finishes, our range of handles and other fittings are made from the finest quality materials and manufactured with the latest technology in mind.