The C70 casement with a flush-fitting sash for a clean, contemporary face.
A flush variant of the Axiom C70, where the sash sits flush within the frame for a smooth, modern appearance from outside. All the strength and thermal performance of the C70 with a sharper, minimal aesthetic.
The C70 casement with a flush-fitting sash for a clean, contemporary face.
Select a feature from the list to see it up close.

Frames and sashes are made using a sculptured carving technique for a traditional appearance. Our PVCu casements use the Deceuninck 2800 profile for high-quality, attractive windows in any configuration.

Our welding technique creates tightly bonded 45Β° corners β cleaned with advanced machinery for a seamless, robust and pristine finish on the frame.

A recycled core made from reclaimed PVCu reduces waste and environmental impact. The outer layer stays virgin PVCu for a smooth white finish and optimal performance, with no compromise on strength.

Surface-fixed astragal bars with back-to-back spacer bars inside the unit divide the glass into smaller sections. Available in horizontal or vertical layouts to suit different architectural styles.

A multi-point locking mechanism engages several points simultaneously when the window closes, distributing locking force evenly along the frame for unparalleled security and peace of mind.

Friction stays give smooth, controlled opening and let the window hold at any angle without an additional mechanical stay β ideal for safe, easy operation and cleaning.

Trickle vents allow background airflow even when the window is closed, meeting current Building Regs. Colour-matched to the chosen finish and available in 2500EA and 5000EA sizes.

A variety of sill options to meet the needs of the opening. Choose between no sill, 95mm, 150mm or 180mm.
Pair your window with matching hardware. Click a handle to see every finish it's available in.
















Finished in marine-grade Qualicoat powder coat as standard, with an extensive choice of RAL colours plus anodised, woodgrain and textured options. Dual-colour profiles allow a different finish inside and out.
| System | Cortizo C70 flush aluminium casement |
|---|---|
| Frame depth | ~70mm |
| Glazing | Double or triple glazed units |
| Thermal break | Polyamide thermal barrier |
| Sash | Flush-fitting |
| Finish | Powder-coated, full RAL + dual colour |
| Security | Multi-point locking |
Specifications indicative β confirm exact sizes, performance figures and options with our technical team. Axiomβ’ is a trademark of Apex International UK Ltd, manufactured in partnership with Cortizo.

Our flagship Cortizo aluminium bi-fold β fabricated to spec, QC-checked and delivered complete for a clean install every time.
View productNear-frameless sliding patio with maximum glass and minimal interruption.
View productA versatile thermally broken aluminium casement for windows of every size.
View product