House with Sheerline prestige windows installed

Aluminium Casement Windows

Elevate your space with our premium casement windows, combining sleek design, superior performance, and lasting durability. At Cor-Line Systems Ltd, we offer customizable solutions from Cortizo and Sheerline Prestige, perfect for both modern and traditional styles.

At Cor-Line Systems Ltd, our premium casement windows combine sleek aesthetics with outstanding performance. Designed to enhance any property, our casement windows are available in two high-quality systems: Cortizo and Sheerline Prestige.

Options to Suit Every Style and Need:

Cortizo Casement Windows: Renowned for their cutting-edge design and durability, Cortizo casement windows offer exceptional thermal efficiency and slimline frames for maximized natural light. With a wide range of customizations, including various finishes, colors, and opening configurations, Cortizo windows are perfect for modern and contemporary properties.

Sheerline Prestige Casement Windows: Sheerline Prestige windows bring a perfect balance of timeless elegance and advanced engineering. Boasting outstanding thermal insulation, secure multi-point locking, and a refined aesthetic, these windows are ideal for homeowners and builders who demand premium quality. Sheerline Prestige is available in an array of bespoke colors and design options to suit both traditional and modern architectural styles.

Key Features Across All Options:

Ultra-slim profiles for a modern, clean appearance.
Excellent thermal efficiency to meet energy performance standards.
Customizable configurations, including a variety of frame sizes and hardware options.
High-performance weather sealing for long-lasting durability.
Multiple color and finish options to complement your project.

Whether you’re a homeowner, architect, or builder, Cor-Line Systems Ltd delivers casement windows that enhance the beauty, efficiency, and functionality of any space. Contact us today to explore the possibilities!

Get A Free Estimate

Cortizo Casements Windows

Cortizo’s casement window system offers a sleek, modern design with exceptional thermal and acoustic performance. Built with high-quality aluminum and incorporating a 32mm thermal break, these windows achieve impressive energy efficiency with Uw values as low as 1.0 W/m²K. Designed for both side-hung and top-hung outward openings, Cortizo casement windows are versatile and ideal for a variety of architectural styles.

The system is highly customizable, offering a wide range of colors, finishes, and hardware options to suit your specific requirements. With slim sightlines that maximize natural light and a robust design certified to British security standard PAS 24, Cortizo casement windows are not only stylish but also secure.

These windows are a perfect solution for both modern residential projects and demanding commercial applications, offering the durability and quality that Cortizo is known for.

Technical Datasheet

Standard Features

32mm thermal break for enhanced energy efficiency.
Achieves Uw values as low as 1.0 W/m²K for excellent thermal insulation.
Available in side-hung and top-hung outward configurations.
Slimline design for maximum natural light and a modern aesthetic.
Certified to British security standard PAS 24 for enhanced protection.
Exceptional sealing for superior air and water tightness.
Wide range of RAL colours, anodized finishes, and textured coatings.
Durability: High-quality aluminum construction for long-lasting performance.
Hardware Options: Multiple handle designs and configurations to suit individual preferences.
Acoustic Insulation: Superior soundproofing properties for enhanced comfort.

Cortizo casement windows combine sleek aesthetics, outstanding performance, and versatility, making them a perfect choice for any project.

Get A Free Estimate

Sheerline Prestige Casement Windows

The Sheerline Prestige Casement Window is the perfect blend of timeless elegance and cutting-edge engineering. Designed with versatility and performance in mind, this premium system delivers outstanding thermal efficiency, sleek aesthetics, and exceptional durability. Ideal for both traditional and modern projects, the Prestige casement window combines ultra-slim sightlines with innovative thermal technology, creating light-filled spaces without compromising on energy performance.

With a wide range of customization options, including frame styles, colors, and hardware, the Sheerline Prestige system can be tailored to suit any design vision. Built with secure multi-point locking and certified to the highest UK standards, this window offers peace of mind while enhancing the beauty and functionality of your space.

Whether you’re looking to upgrade a home or complete a new-build project, Sheerline Prestige Casement Windows deliver on quality, style, and performance

Techincal Datasheet

Standard Features

Advanced thermal design achieving U-values as low as 0.9 W/m²K with triple glazing.
Ultra-slim frames for a sleek, modern look and increased natural light.
Available in side-hung and top-hung outward configurations.
Built-in multi-point locking system and PAS 24 certification for ultimate peace of mind.
High-performance weatherproofing for superior air and water tightness.
Wide range of colours, including dual-colour options, and textured or anodized finishes.
Durable Aluminum Construction: Lightweight yet robust materials for long-lasting performance.
Seamless finish with optional concealed hinges for a clean, modern aesthetic.
Fully recyclable aluminum frames for an eco-friendly solution.
Glazing Options: Supports both double and triple glazing for enhanced insulation and noise reduction.