Aluminium system
Cortizo
Contemporary, architectural, strong in large sliding and minimal-frame work.
Overview
About Cortizo
Cortizo is frequently specified where the brief is large glass and slim frames. It appears on contemporary extensions, rear elevations and architect-led projects.
Aluminium suits these applications because the frames can stay slim while carrying large, heavy glass units.
Ownership: Spanish aluminium systems group supplying windows and doors across Europe and the UK.
Systems / Ranges
Ranges within this system
Aluminium windows
Contemporary casement and fixed-light options.
Sliding doors
Large-pane sliding systems for rear elevations.
Bifold doors
Folding options where a full opening is wanted.
Appearance
External and internal appearance
Slim, contemporary aluminium sightlines across windows, sliders and bifolds, aimed at maximising visible glass area.
Window / door types
Products available in this system
- Aluminium casement and fixed-light windows
- Large-pane sliding doors
- Bifold doors
Colour options
Colour and finish
Standard powder-coated RAL colour ranges are typical of aluminium systems of this type; confirm the current options and any dual-colour (different internal/external) finish with your installer.
Glazing capability
What it can glaze
Built to carry large, heavy glazed units, which is the main reason aluminium is chosen for big openings — exact maximum pane size and weight depend on the specific range quoted.
Thermal performance
Thermal performance
A thermally broken aluminium system. We do not quote a specific U-value here, since it depends heavily on the range, glass specification and installation — ask your installer for the whole-window figure.
Security
Security
Multi-point locking is standard on residential ranges. Confirm any specific security standard on the installer's own paperwork for the product supplied.
Best suited to
Typical applications
- Contemporary extensions
- Rear elevations with large glazing
- Architect-specified projects
Things to consider
Strengths and things to consider
Strengths
- Slim frames relative to the glass area
- Well suited to large openings and contemporary architecture
- Broad product range across windows and doors
Things to consider
- Aluminium generally costs more than PVC-U for the same opening
- Large sliding panes need careful survey, access and installation planning
Before you sign
Questions to ask an installer
- 01Which Cortizo system is this, and what are the sightlines?
- 02What is the threshold detail — upstand or flush?
- 03How will panes this size be delivered and installed?
The Glazora view
A strong choice when the brief is glass area and slim frames. Get the threshold and installation detail agreed in writing before you order.
See how Cortizo compares directly against another system, or get a quotation based on your own property.
Source / last verified
Where this information comes from
Source: Manufacturer published system literature and trade/fabricator-facing brochures in general circulation.
Last verified: Structure reviewed February 2025 — figures below are qualitative pending direct manufacturer confirmation.
Still needs verification against manufacturer literature:
- Sightline and frame depth figures
- Maximum pane sizes
- Any specific U-value
- Threshold options