Cortizo Casement offers a sleek, modern design with slimline aluminium frames and exceptional thermal and weather resistance. It is an ideal option for both window replacement and new construction projects, including property expansions.

Crafted from top-quality aluminium, the Cortizo casement system boasts exceptional energy efficiency and an ideal glass-to-frame ratio, maximizing natural light in your home. Featuring a 32 mm thermal break zone and impressive Uw transmittance of 1.0 W/m²K, this long-lasting window system also holds British security certification PAS 24 for added peace of mind. Perfect for any home seeking superior quality and performance.

CORTIZO Casement Windows have become synonymous with contemporary window solutions, combining sleek design and practical functionality. These windows not only enhance the aesthetics of a space with their modern appearance, but also prioritize comfort and security with their numerous features.

Ultra-Slim Aluminium Frames: CORTIZO’s ultra-slim aluminium casement windows exemplify the brand’s dedication to offering optimal visibility and inviting in ample natural light.

Sightline for Casement Window: 65mm

Sightline for Flush Window Frame: 70mm

Glazed unit weighing up to 50 kg.

Thermal Break Technology: An outstanding aspect of CORTIZO Frame Casement Windows is their cutting-edge thermal break technology. This feature boasts a 32 mm thermal break zone and a transmittance Uw of 1,0 W/m²K, earning an impressive Energy Rating A++. By preventing heat transfer, the thermal break makes these windows a wise option for varying climate conditions and helps lower energy expenses.

Weather-Resistant Design and PAS 24 Approved: CORTIZO Modern Casement Windows with the British security certification PAS 24 offer strong security and durability, with weatherproof design and long-lasting joints and hinges.

Integrated Blinds: CORTIZO Frame Casement Windows offers an innovative option of windows with built-in blinds, providing privacy and light control without sacrificing the window’s sleek design. These blinds come in manual, battery-powered, and mains-powered options to cater to different user needs.

Glazing & Acoustic Insulation: CORTIZO’s window options include double glaze and triple glazing up to 44 mm, with acoustic insulation up to 45 dB and low U-values for effective soundproofing in loud environments.

Multiple Opening Options: CORTIZO offers aluminium casement windows in different styles such as side hung, top hung, and double window configuration with a seamless design for a modern look.

CORTIZO Flush Frame casement windows are built to withstand harsh weather conditions. They have been designed to be weatherproof, ensuring their durability in tough climates. With a water tightness class of E1200, wind resistance class of CE 2400, and Air Permeability Class 4 rating, they can endure heavy rain and strong winds without compromising their structural integrity or performance.

CORTIZO modern casement windows offer various glazing options to cater to different needs:

• Double and triple glazing options available with a thickness range of 23mm to 44mm.
• These options not only improve energy efficiency but also reduce noise and provide excellent thermal performance.
• With an acoustic insulation rating of up to 45 dB and low U-values as low as 1.0 W/m²·K, these windows are ideal for soundproofing in noisy environments.
• Toughened glass is also available for added security, safety, and increased energy efficiency.

CORTIZO Aluminium windows are built with exceptional soundproof capabilities, achieving an impressive acoustic insulation Rw of up to 45 dB. This makes them the perfect option for residences located in bustling cities or those looking for a serene indoor setting.

The energy efficiency of CORTIZO casement windows is top-notch, achieving a rating of up to A++. This can be attributed to their impressive features, including:

• Thermal Break Zone: An ample 32mm thermal break zone greatly reduces thermal transmission.
• Low U-Values: These double glazed windows boast low U-values of just 1.0 W/m²·K, resulting in superior insulation and minimal heat loss, potentially leading to energy savings.
• Double or Triple Glazing: With the option for double or triple glazing, these windows can hold up to a 50kg glazed unit and up to 44 mm maximum glazing thickness, further enhancing their thermal performance.

The CORTIZO Ultraslim Casement Windows are available in a variety of color options, including over 200+ RAL shades. This provides the opportunity to personalize the appearance of your double glazing windows to complement the style of your home’s interior or exterior. Furthermore, integrated blinds, such as Venetian blinds, can be added to the CORTIZO Casement Windows for privacy and light control.

CORTIZO Aluminium Casement Windows come in a range of sizes, including heavy-duty options. The unique design can bear a glazed unit of up to 50kg, allowing for expansive glass panels that provide clear views and ample natural light.

• Casement window sightline: 65mm
• Flush window frame sightline: 70mm
• Maximum glazed unit weight: 50kg
• Opening direction: Outward
• Types of outward opening: Side hung; Top hung

Maximum sash dimensions:

• Slim sash Window (Side hung)
• Width (L) 700 mm
• Height (H) 1,300 mm

• Slim sash (Top hung)
• Width (L) 1,200 mm
• Height (H) 1,300 mm

• Heavy duty sash (Side hung)
• Width (L) 750 mm
• Height (H) 1,750 mm

• Heavy duty sash (Top hung)
• Width (L) 1,800 mm
• Height (H) 1,800 mm

CORTIZO casement windows offer versatile options for outward openings, including both side hung and top hung styles. The heavy-duty double glazed sash windows feature allows for wider access points, making them a great choice for larger spaces such as French or bi-folding doors.

Different types of openings for windows include:

Top Hung: This option opens from the bottom and swings outward, offering ample ventilation while protecting against rain.

Side Hung: Like a standard door, this type opens from the side and allows for full access to the window.

With CORTIZO Ultra slim Casement Windows, you have the choice between manual or battery-powered operation, while certain models can even be mains-powered. This means that CORTIZO casement aluminium windows are suitable for individuals of all ages and physical capabilities, providing maximum convenience in how you utilize your windows.

CORTIZO Flush Casement Windows offer the convenience of integrated blinds, including Venetian blinds, which provide both privacy and light control while maintaining the sleek design. These blinds are designed specifically for flush windows and come in manual, solar-powered, battery-powered, or mains-powered options. Integrated within the window frame, they can easily be concealed when not in use and will not interfere with opening and closing the doors. Plus, there’s no need to worry about cleaning, tangling, or noise from wind.

Recognized for its sturdiness and ability to withstand harsh conditions, aluminium is a sought-after material. Its light weight lends itself well to producing windows with sleek frames, allowing for expansive glass panels. These casement windows are impervious to weather and noise, requiring minimal upkeep, which contributes to their popularity among homeowners and architects alike.

Estimate Lead time: 

• For all our projects in standard colours is 6-8 weeks
• For Final Survey is within 5 Days
• Framework: 4-5 working days for the framework
• Glass: 7 working days for Glass Delivery

Express Service:

If you need your products quicker, please contact us to find out about our express service charges. All the premium service orders need to be placed before 10am weekdays for 1-7 working days delivery.

Please contact us to get the accurate lead time by our representative

At Austral Glazing Ltd, we are proud to be your official CORTIZO & SMART Fabricator and experts in high-end projects. We are in Thornton Heath and specialize in producing and installing top-of-the-line aluminium architectural glazing products. Our focus is satisfying the demands of luxury and modern projects.

At our company, we recognize the significance of fulfilling the requirements of contemporary architectural plans, particularly in panoramic glazing ventures. Our teams possess the proficiency to achieve visually striking outcomes.

As authorized dealers, suppliers, fabricators, and installers of the full range of CORTIZO & SMART products, we have the capacity to handle all your glazing needs, not just in Thornton Heath London but throughout the UK.

Here’s a quick overview of our product range of CORTIZO & SMART aluminium products:

• CORTIZO COR Vision Plus Sliding Doors
• CORTIZO COR Vision Sliding/Patio Doors
• CORTIZO Aluminium Bifold Doors
• CORTIZO Casement Aluminium Windows
• SMARTS VISOFOLD 6000 Aluminium Bi-Folding Doors
• SMARTS Slimline VISOFOLD 1000 Bifold Doors
• SMART Aluminium Alitherm 400 Windows
• SMART Heritage style Windows and Doors
• SMART ALUSPACE Internal Doors & Screens

Count on our expertise to provide top-notch glazing and door solutions that guarantee both your comfort and security, while also promoting energy efficiency. Our services extend not only to Thornton Heath London, but throughout the entire UK.