Aluminium Windows

Aluminium Casement Windows

Aluminium Casement Windows from Costello Windows are strong, durable and will last many years. Ideal for both commercial and residential projects. Aluminium windows can be made in both casement and tilt & Turn styles. Aluminium Casement windows windows use a cold barrier which makes a thermally efficient window.

Costello Windows

Aluminium Casement Window Gallery

Egress Fire Escape Mega Hinge

For side hung upvc window systems, the mega egress friction hinge is suitable for all side hung applications. Due to the design’s superior integral strength, one hinge size covers all frame widths up to 900mm at a maximum load of 40kg. In open position the sash is moved outside the frame to maximise the escape aperture. True 90º opening for egress compliance. The passive window uses the Yale security hinge for top hung windows.

Aluminium Casement Window Features

Triple Glaze U-Value 1.0 W/(m²K)

Double Glaze U-Value 1.5 W/(m²K)

Sleek and modern in appearance

Thermal break stops heat loss through material

Double or Triple glazed option

Warm Edge Spacer Bars

Argon gas filled units

Available in any RAL colour and laminate foil options

Low maintenance

Easy clean material Stainless steel hinges and locks

Thermal Insulation
U-Value 1.0 W/(m²K) to U-Value 1.5 W/(m²K)

Thermal Insulation
Double & Triple Glaze

Air Permeability
Tested to max 600 Pa achieving class 4

Technical Details

Class A4 E900 900 Pa

Wind Resistance
Class A4 P3 2400

28 mm units with 4 mm window pane thickness

Window Colour Options

Anthracite Grey
Silver Grey
Agate Grey
Basalt Grey
Light Cream
Chartwell Green
Golden Oak
Dark Green

Handle Colour Options

Please Note

  • Image colour may vary slightly to end product
  • Standard Interior colours are white and light cream
  • All colours have a woodgrain effect except white