Whilst energy and security performance are very important things to feature when choosing your aluminium windows, when it comes to aesthetics, the colour of your aluminium windows is the thing can really make your property stand out from the crowd. Read on to find out how aluminium window frames can be painted in any RAL colour to perfectly suit the aesthetics of your home.
What colours do aluminium windows come in?
aïr aluminium windows have endless colour options. They are available in any colour on the RAL colour chart – that’s a choice of more than 2,500 colour shades!
What is the RAL colour chart?
RAL is one of the best known colour-matching systems in the world. It is used to define ‘true’ colours for paint, coatings and plastics and it is administrated by the RAL German Institute for Quality Assurance and Labelling.
RAL literally stands for ‘Reichs-Ausschuß für Lieferbedingungen und Gütesicherung’ – roughly translated in English as the ‘National Committee for Delivery Conditions and Quality Assurance’.
Founded in 1925, RAL has been the ‘official language of colours’ for almost a century!
Powder-coating: how aluminium becomes a RAL colour
Colouring aluminium frames is done using a process called ‘powder-coating’.
During this process, the aluminium is thoroughly cleaned to remove any grease, dirt or debris. Then a coloured powder can be sprayed onto statically charged aluminium profiles. Next, the aluminium is put in a high-temperature oven to ‘bake’ the profile so that the powder melts to create a consistent, high-quality colour finish.
All the colours of the rainbow
We love brightly coloured frames, as well as classic colours. Here are some of our favourite RAL shades…
Reds
Blues
Yellows
Greens
Oranges
Purples
Greys
Neutrals
Classic
Trending Window Colours for 2023
Every year, RAL publishes a colour trend report called ‘RAL COLOUR FEELING’ outlining a colour palette where each shade works perfectly together to help inspire new design across fashion, interiors and more! If you’re looking for additional colour inspiration for your windows and doors, or for your entire home project, you can find the 2023 report here.

Finish options
All aïr aluminium windows and doors feature aïrcoat – a specially engineered, dirt-resistant paint coating that’s available in any RAL colour. aïrcoat is not only super easy to clean and resistant to dirt, but also super-durable and scratch-resistant to keep your window and door frames looking newer for longer.
Individual shade or classic colour?
The right colour choice really depends on the style of your home and how much you want it to stand out from the crowd or blend in with your neighbourhood.
Bright colour choices work great for individual and creative home designs or where the aluminium windows and doors will be the stand-out feature in your home design. They look incredible against white renders externally and light interior walls for a real colour pop!
Classic colours, such as black and white might be more appropriate for your home, to better match the brick, stone or render of your existing home or new extension. Or, if you want a window frame that will match your interior, there’s also the option to have dual colour frames – where the inside and outside of your frame are different colours – so many choices!
RAL Colour lead times
Please do bear in mind lead times when it comes to bespoke colours. Standard classic colours tend to be available more quickly than a bespoke RAL colour options, which could influence your choice. Just talk to your aïr Accredited Retailer for further information.