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Quick Product Snapshot
Key Information at a Glance
Opening Style
Outward side-hinged or top-hung projecting casement options
Frame Material
Thermally broken aluminium
Best Suited For
Modern homes, extensions, replacement aluminium windows and UK-style outward opening designs
Glazing Options
Double or triple glazing options, with glazing capacity up to around 44mm depending on configuration
Energy Performance
Cortizo Casement can achieve Uw values from around 0.9 W/m²K depending on glass and configuration
Security
PAS 24 certified specification available, with secure hardware options
Warranty
Manufacturer and installer warranty details depend on the chosen Cortizo system and supply route
Design & Options
Cortizo casement windows are designed specifically for UK-style outward opening projects, with the choice of side-hinged or top-hung operation. The aluminium frame gives a sharper, more modern appearance than traditional casements, while the specification can be adjusted for security, weather performance, acoustic comfort and glass thickness.
✓ Choose side-hinged British casement or top-hung projecting openings depending on the room.
✓ Glazing capacity up to 44mm allows for strong thermal and acoustic glass options.
✓ PAS 24 certified specifications are available for the UK market.
✓ Concealed hardware and security hardware options can be selected where suitable.
✓ Powder-coated aluminium finishes give a clean, durable external appearance.
Why choose CORTIZO Casement Windows
Cortizo casement windows are a strong choice when you want a familiar outward-opening window but with the crisp look and strength of aluminium. Designed with the UK market in mind, they work well for modern replacement projects, extensions and new builds where performance and appearance both matter.
Key Features
Outward opening design
for familiar everyday use
PAS 24 certified option
for added home security
Thermally broken frame
for improved insulation
Slim aluminium styling
for a sharper finish
Performance & Comfort
Cortizo Casement combines low U-values, high acoustic performance, strong weather test results and PAS 24 security options. It is a practical aluminium window system for homeowners who want modern styling without compromising on comfort or security.
Energy Efficient
Cortizo Casement achieves Uw from 0.9 W/m²K.
Enhanced Security
PAS 24 certified for the UK market.
Weather Resistance
Class 4 air permeability and E1200 watertightness.
Acoustic Comfort
Acoustic insulation up to 45 dB Rw.
Are CORTIZO casement windows right for your property?
Cortizo casement windows are a strong option for projects that need a familiar UK-style outward opening window with a sharper aluminium finish. They suit modern replacements, extensions and new builds where slim sightlines, security and weather performance all matter. Choose them when you want the practicality of a casement window without the heavier look of traditional frame materials.
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