Cortizo Windows

Premium Architectural Aluminium

For over 50 years, Cortizo has established itself as a global leader in the aluminium glazing sector, delivering innovative and high-performance solutions across Europe and the UK. Renowned for its commitment to quality, sustainability, and bespoke design, Cortizo offers an extensive range of windows, doors, and facades tailored to both residential and commercial applications, blending timeless aesthetics with cutting-edge technology.

A Versatile Solution for British Homes and Businesses

Cortizo Casement windows provide a sophisticated, thermally broken hinged system designed specifically for the UK market, offering outward-opening casement or projecting styles that echo traditional British architecture while delivering modern efficiency. Ideal for period properties, contemporary renovations, or light commercial projects, these windows combine elegant proportions with robust performance, ensuring seamless integration into any building envelope.

The system features slim 70 mm frame and sash sections with a 1.6 mm profile thickness, allowing for generous glazing areas that flood interiors with natural light. Available in side-hinged casement or top-hung projecting configurations, they support both windows and doors, with options for single or multi-sash setups including fixed lights. This flexibility makes them perfect for creating characterful openings that enhance kerbside appeal and indoor comfort.

Innovation at its Finest

Cortizo’s advanced thermal break technology, incorporating a 32 mm polyamide barrier, creates an effective insulation layer between interior and exterior environments, achieving an outstanding Uw value of ≥ 0.9 W/m²K. This superior energy efficiency complies with the stringent demands of Building Regulations Part L, helping to maintain consistent indoor temperatures, reduce heating costs, and minimise your carbon footprint—ideal for eco-conscious homeowners and businesses alike.

The system also excels in acoustic isolation, with Rw values up to 45 dB, providing a tranquil haven from urban noise, whether in a bustling high street shop or a family home near busy roads.

Signature Secure and Streamlined Profiles

Engineered for enduring security and refined aesthetics, Cortizo Casement windows feature concealed or visible hardware options, including multipoint espagnolette locks for effortless operation and peace of mind. Certified to PAS 24 standards, they undergo rigorous testing to withstand intrusion attempts, ensuring compliance with enhanced security requirements for new builds and refurbishments.

With glazing thicknesses from 23 mm to 44 mm, these windows accommodate double or triple-glazed units for optimal performance. Sash dimensions cater to diverse needs: reduced sashes up to 1200 mm wide and 1300 mm high (50 kg max), or heavy-duty options reaching 1800 mm wide and 1800 mm high (100 kg max). Low-profile thresholds and weather seals deliver Class 4 air permeability, E1200 watertightness, and CE2400 wind resistance, making them resilient against the UK’s variable climate.

Suitable for both inward- and outward-beading, with side- or top-hung openings.

Profiles offer ovolo, chamfered, or square edge options for authentic heritage or modern looks. Frame choices include standard and slim-line stays, plus a variety of cockspur or multi-point handles. A comprehensive 10-year guarantee underscores Cortizo’s dedication to durability and customer satisfaction.