Aluminium Casement Windows

Envy Windows supply & install aluminium casement windows in Wakefield, Leeds, Castleford, Pontefract, West Yorkshire and in parts of North Yorkshire & South Yorkshire, All our casement windows are made using Alitherm 800 profile. Aluminium is a very strong and lightweight material. It naturally generates a protective oxide coating, making it virtually resistant to corrosion. Because of that, aluminium is one of the most durable frame materials available. The lifespan of these casement windows can therefore be measured in decades rather than years, making them immensely popular with homeowners.


All our windows come with A-rated glass


All our aluminium windows come with multipoint locking


Keep more heat in with our triple glazed units


All our windows and doors are made to measure, giving you the flexibility to design them how you want them

Design Your Own Windows

Click the image below to use our window design software to design your own windows. Please note due to a bug in Chrome on Android only the designer will not display correctly but does work on all other browsers.

Window Designer Software

Other Aluminium Window Options

Aluminium Flush Casement Windows

Aluminium Flush Casement Windows

Aluminium flush casement windows have fast become one of the most in-demand products for home renovations here in the UK. With strength like no other material and a lifespan measured in decades rather than years, aluminium has become the perfect choice for homeowners. One of the main benefits of aluminium is its low and straightforward maintenance, as well as the whole host of configurations available.

Aluminium heritage Windows

Heritage Style Aluminium Windows

Durable and long-lasting, the aluminium heritage windows will help to improve the energy performance and aesthetics of a property. The steel look aluminium profile creates a durable barrier against the elements, thanks to their weather tested parts. Any of our aluminium windows come with a thermal polyamide break which has been incorporated to create a barrier between the cold outside and warm inside

Multiple Designs

Our aluminium windows are available in a vast range of designs and configurations. This makes them a great option for new builds, or as a like for like replacement for antiquated steel

3 Colour Options

 Our aluminium casement windows are available in white and grey from stock, with options for bespoke colours on request. Thanks to the unique composition of aluminium, we can even finish the internal side of the window in a different colour to the external one.

 Thermally Efficient

Our modern aluminium casement windows feature a thermally broken polyamide framework. It is an excellent insulator which helps to prevent heat loss. Our aluminium window ranges can deliver U-values as low as 1.3 W/m2K, standing toe to toe with the best on the market.

Handle Colours

As window profile has evolved and more colours created, handles have now had to do the same. Here at Envy, we have an array of window handle colours to suit every window style.

Choose Clear or Obscure Glass