Emplas | The window and door fabricator of choice

Flush Casement Aluminium Windows

The AluK 58BW aluminium flush casement window combines an ultra-slim 46mm sash, with a flush finish to the frame, to create a clean and contemporary appearance.

AluK Optio 58BW Casement

An understated elegance

We’ve also offer AluK’s Flush variant of the 58BW ST to our range. In common with the Optio 58 BW ST, the AluK optio 58bw casement aluminium window has an ultra-slim 46mm sash, which combined with a flush finish, has been developed to create a clean and contemporary appearance.

Suitable for either casement or French casement installations and top and side-hung options, the AlUK 58BW Flush Casement can also be combined with different colour options to create a more subtle and understated finish.

Like the rest of our window and door range, it features multi-point locking and cutting edge thermal breaking technologies.

AlUK Logo

Why choose the AluK Optio 58BW

Durable colour

Our aluminium window and door ranges use a special flash-anodising process.

Completed ahead of powder coating this creates a protective anodised layer of aluminium oxide providing a better substrate for powder coating but also preventing filiform corrosion.

It means that our window and door range is supplied in a marine grade finish as standard and guaranteed for 10-years. 

Standard Colour Options

Our standard colour ranges include a choice of white, anthracite grey, chocolate brown and deep black, plus dual colour anthracite grey-on-white and deep black-on-white. 

Special Colour Options

We can also offer you access to a range of textured finish options and supply any RAL colour on special order, giving your customers the flexibility to pick out the perfect shade to compliment their property.

24/7 online ordering

Want to find out more about our energy efficient window and door ranges?

AluK door and window manufacture and supply

We also supply the AluK F82 Luminia aluminium bi-folding door and the AluK BSC94 aluminium sliding patio door, plus a complete range of AluK aluminium windows.

Looking for a Lantern Roof supplier?

We’re a single source of supply for your glazed or flat roof extension with a range of bi-folding, sliding and French doors and windows.

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