Casement aluminium windows installed in a traditional brick home

Casement Windows

Classic opening. Modern aluminium.

A thermally broken hinged aluminium window system with clean straight lines and a slim 65 mm sightline, designed for both contemporary and traditional architecture.

Ask about Casement Windows Explore the system

Sightline 65 mm

Frame / sash 70 mm

Glazing 23–44 mm

Construction Thermally broken

Hinged opening

A straightforward window. Properly engineered.

Casement uses a conventional hinged opening but offers different sash configurations and hardware capacities depending on the proportions and requirements of the opening.

Aluminium casement windows in a brick residential property

Residential aluminium Slim framed casement windows sit comfortably within both traditional and contemporary elevations.

Sash configurations

Match the sash to the opening.

Casement is available with Slim and Heavy Duty sash configurations, with different limits for side-hung and top-hung windows.

01 / Slim

Side hung

Up to 950 × 1300 mm

Maximum stated sash weight of 35 kg.

02 / Slim

Top hung

Up to 1200 × 1300 mm

Maximum stated sash weight of 50 kg.

03 / Heavy Duty

Side hung

Up to 750 × 1750 mm

Maximum stated sash weight of 42 kg.

04 / Heavy Duty

Top hung

Up to 1800 × 1800 mm

Maximum stated sash weight of 100 kg.

Tested performance

Designed for more than appearance.

The Casement system combines thermally broken aluminium with tested acoustic, air, water, wind and security performance for residential and commercial applications.

Acoustic insulation Up to 45 dB

Designed to help reduce external noise transmission through the window system.

Air permeability Class 4

Tested performance against uncontrolled air leakage.

Water tightness Class E1200

Tested resistance against wind-driven water ingress.

Wind resistance Class CE 2400

Designed to maintain stability under specified wind loads.

Security PAS24

The system records a passed PAS24 security test.

Thermal break 32 mm

Polyamide separation within the aluminium framing.

System construction Slim enough to stay refined, substantial enough to work as an everyday aluminium window system.

Frame depth 70 mm

Sash depth 70 mm

Polyamide strip 32 mm

Profile thickness 1.6 mm

Glazing 23–44 mm

System European Groove

Colour & finish

Make the windows part of the architecture.

Casement windows are available across a broad range of aluminium finishes, allowing frame colour and texture to be specified around the brickwork, render, cladding and wider material palette of the property.

Aluminium window colour and finish options

More than standard grey

Specify the finish around the building.

The available aluminium finish range extends beyond the familiar anthracite palette, giving projects much more freedom to coordinate windows with surrounding materials.

RAL colours

Extensive powder-coated colour choices.

Metallic finishes

A more distinctive architectural surface.

Textured finishes

Add subtle surface character to the aluminium.

Wood effect

For projects requiring a warmer visual character.

Anodised finishes

A broad selection of anodised treatments.

Project fit

A practical aluminium window for a wide range of buildings.

Casement is designed for residential and commercial projects and can be used across both new construction and renovation. Opening type, finish and glazing can then be specified around the individual building.

Traditional homes

The hinged format sits naturally within brick-built and more traditional elevations.

Contemporary homes

Straight aluminium lines and the 65 mm sightline also work comfortably within modern extensions and new builds.

Renovation

The system is designed for both new construction and refurbishment projects.

Residential & commercial

Different sash and hardware configurations allow the system to adapt to a broad range of openings.

Maximum sash dimensions and weights depend on the selected configuration. Glazing, hardware, opening type and final finish should be confirmed around the individual project.