Windows engineered to perform

Minimalist sightlines, advanced thermal performance and flexible detailing– aluminium windows by Deceuninck Aluminium

Decalu offers an extensive range of casement and tilt-and-turn window options including the minimalist Decalu88 Steel, and Decalu110 New Steel options. With hidden drainage and available in our extensive colour palette, we define the character of buildings.

Deceuninck Products

Elegant and understated

The Decalu88 Standard Window

A timeless style with a completely flat exterior, the Decalu88 is highly flexible option and suitable for a wide range of applications.


Minimalist high-end architecture

The Decalu88 New Steel

The Decalu88 New Steel Window is defined by a contemporary high-end architectural aesthetic making it ideal for modern statement installations.


Minimalist high-end architecture

The Decalu88 Hidden

The ultimate in minimalist design, the opening window sash is completely hidden behind the frame in this modernist window designed to maximise light.


Sculptured detailing and exceptional design flexibility

The Decalu94 Retro

The Decalu94 is a more traditional window option featuring classic detailing for period installations.


High rise and ultra-energy efficient solution

The Decalu101 Scand

This pivoting window rotates 160° for easy cleaning and maintenance, making it ideally suitable to applications where access is an issue.


Warehouse and industrial loft style

The Decalu110 Steel

Inspired by the industrial trend, this window is perfect for contemporary statement builds.


Tapping into the industrial warehouse trend, the Decalu88 New Steel has a contemporary architectural aesthetic.