Warmth & Efficiency

Keeping traditional character shouldn’t mean dealing with draughts. Our vertical sliding sash windows feature advanced multi-chambered uPVC profiles. They are equipped with high-performance 24mm insulated double glazing with an argon gas insert as standard, achieving an outstanding A Energy Rating right out of the box. Backed by an extruded warm-edge spacer bar and premium colour-matching woolpile strips, the system delivers an impressive standard thermal performance of 1.4 W/m²K. For demanding new-build projects or maximum energy savings, an optional high-performance material thermal upgrade is available to push efficiency down to an ultra-low 1.2 W/m²K.

Strength & Security

Traditional styling meets heavy-duty engineering to give trade installers and homeowners complete peace of mind. Our vertical sliding sash windows are fully reinforced internally with robust galvanised steel. This advanced internal skeleton strengthens the sashes to completely prevent profile deflection in high winds, while providing an incredibly secure, immovable foundation for locks, latches, and structural hardware. Equipped with robust locking devices and an optional anti-jemmy aluminium bar, the entire system delivers uncompromising strength and protection to keep properties locked up tight.

A Perfect Fit for Any Project

From a standard terraced townhouse to a premium heritage development or modern self-build, this versatile system ensures your project retains a premium look and feel. Both the upper and lower sashes slide smoothly on high-quality, perfectly balanced mechanical springs, and both sashes tilt completely inwards to allow the outside glass to be safely cleaned from inside the room. With customisable design features including sculptured astragal bars, traditional run-through sash horns, a deep bottom rail option, and variable split ratios, our local branches can supply the exact layout required to complement any site requirements.