Aluminium Casement Windows

Aluminium casement window with double glazing finished in whiteCasement windows became popular thanks to their suitability for any property. Fast forward to today, and Keepout are offering this simple window solution in a state of the art material – aluminium casement windows successfully combine function and style.

Why choose our aluminium windows?

  • Casements suit any size and shape of frame, and therefore any home
  • Our high performance products boast thermal and noise insulation, especially when combined with our energy efficient glazing (which is offered as standard)
  • We manufacture all of our windows in house, ensuring consistent quality
  • Casements are suited to any city property – we serve across Central and Greater London, from Enfield to Croydon
  • We can guide you through every step of the process, from quote and design to after care
  • We have fantastic knowledge of both the local area and the glazing industry

Aluminium casement windows are built to last. Thanks to the natural strength of the material, they do just that. Other materials may need replacing within a decade, but aluminium products are expected to have a life expectancy of at least thirty years.

Energy efficient

Although a small detail, aluminium casement windows can improve your entire property. This is thanks to both the stylish appearance and improved energy efficiency.

The latest aluminium profiles boast superb insulation; your home can therefore look aesthetically pleasing whilst retaining vital heat inside. Your heating bills may even be reduced, a huge benefit for homes in London, which has been called the third most expensive city in the world to live in!

Find the perfect match for your home

Casements windows aren’t just popular down to chance. They are hugely versatile – they are suited to any size and shape of entrance and therefore ideal for any property, wherever you reside in the city or suburbs.

Over 100 RAL colours to choose from to get the perfect match

Aluminium casement windows from Keepout are available in any RAL colour. It is therefore very easy to match your new windows to the pre-existing style of your property, or to give your home a new flash of personality.

Aluminium Window Photos

Bay aluminium windows in whiteBlack aluminium windowsSteel look windows made using aluminium for a traditional lookSmall grey aluminium windowsInternal view of casement windowsGrey windows in aluminium

Colour Options

Selection of anodised colours

Our aluminium windows are available in a wide range of colours. Can’t find what you are looking for? Choose from hundreds of RAL colour options to get the perfect match – contact us for more information on colour availability.











Dark Blue

Dark Blue





Disclaimer: Colours may appear different across multiple devices/computers. For a colour swatch please contact Keepout.

Glazing options

Energy efficient glazing options

Choose from a range of high performance glazing to enhance your new windows and doors. We offer a fantastic selection, in addition to double and triple glazed units (the latter of which is offered as standard). All options are energy efficient, easy to maintain and will improve the overall look of your home

Toughened & Safety glass

Add strength and reduce the likelihood of damage, whether by accident or due to breaches of security.

Solar Control & Low E glass

Reduce heating with energy efficient glazing, including options from glazing market leaders Pilkington – these latest designs use argon gas and warm edge spacer bars for increased insulation. Our Solar Control glass from Pilkington also helps your conservatory stay warm in the winter but cooler in the summer.

Self-Cleaning glass

Make maintenance concerns a thing of the past with glazing that breaks down dirt for a cleaner look all year round.

Decorative & Patterned

Reflect your personality in detailed glazing and create a style suited to you – whether an overall pattern, a coloured feature or obscure glass to enhance privacy

Stippolyte textured glass option


Pelerine textured glass option


Taffeta textured glass option


Oak textured glass option


Minster textured glass option


Florielle textured glass option


Mayflower textured glass option


Everglade textured glass option


Digital textured glass option


Contora textured glass option


Charcoal textured glass option


Chantilly textured glass option


Satin textured glass option