Aluminium
Casement Windows
The Cortizo Casement is a sleek, aluminium window system that opens outwards from the top and sides. Its design features slim, modern frames and offers exceptional thermal efficiency and weather resistance. This makes it an ideal option for replacing old windows, as well as a fantastic choice for new construction projects and property extensions.
Cortizo Aluminium Windows

Aluminium Casement Windows
The Cortizo casement is a sleek aluminium window system that offers both side and top hung outward opening options, crafted from premium thermally broken aluminium.
This system boasts impressive efficiency, featuring a 32mm thermal break zone and a Uw transmittance of 1.0 W/m²K, along with the British security certification PAS 24.
It comes in both standard and flush profiles, with options for slimline or heavy-duty sashes to suit a range of sizes. The 70mm frame depth creates narrow, modern frames, maximizing glass area to bring in more natural light.
Perfect for both residential and commercial markets, this casement window system is ideal for renovation or new construction projects.
FEATURES & BENEFITS:
- Narrow sightlines
- Great insulation due to polyamide thermal break technology
- Slimline and heavy duty sashes available to accommodate different size windows
- Available in flush profile
- Available with security hardware and concealed hinges
- Double glazing as standard with triple glazing available
- Wide range of finish options with dual-colour available
- Tested to the stringent PAS 024: 2012
- Full range of frame couplings, bay window attachments and sills.
- Polyester powder coat or anodised frame finishes including dual colour
- Frames can be finished in wide variety of RAL colours, anodised, anti-bacterial, textured, anodised or even wood effect finished.
Energy efficiency
Cortizo casement windows are designed to minimize heat loss and maximize energy efficiency. They use advanced sealing systems and insulating materials to keep your home comfortable and energy bills low.
Security
Cortizo casement windows are equipped with robust locking mechanisms that provide superior security and prevent unauthorized entry.
Aesthetics
Cortizo casement windows have sleek, modern designs that can enhance the appearance of your home. They come in a variety of colors and finishes, making it easy to find the perfect match for your home’s decor.
Durability
Cortizo casement windows are made with high-quality materials that are designed to withstand the elements and last for many years. They are resistant to corrosion, rot, and decay.
Ease of use
Cortizo casement windows are easy to operate, with a smooth and effortless opening and closing mechanism. They are also easy to clean and maintain.