Stellar Flush & Fully Flush Casement Window System

Product features

  • U-value as low as 0.95 W/m²K
  • Energy rating (WER) of Band A with double glazing
  • Up to 12% more glass area than a comparable window
  • Flush and Fully Flush design
  • Patented Knock-In beads for fast fitting
  • Patented Reverse Butt Joint
  • Pre gasketed system
  • 40mm and 45mm polyamide thermal breaks
  • New thermal break technology

    The special polyamide thermal break technology delivers a highly thermally insulated bifold that achieves a U-value as low as 0.95 W/(m2K).

    • Special polyamide
    • Under glass seal
    • Tailed glazing gasket
    • Frame centre seal

    Designed to meet Part L requirements, improve insulation and weather protection without the use of foam.


    The Stellar Aluminium Flush Casement and Stellar Aluminium Fully Flush Casement deliver world-class design options and performance.

    The Stellar window system benefits from our unique ‘reverse butt joint’ transom and mullion options which further reduce sightlines and maximise glass area. The latest thermal break technology ensures you have a future-proof glazing solution able to match any insulation requirements.

    Our patented ‘knock-in’ bead and pre-inserted gaskets from the innovative design of the Stellar Flush Casement speed up the fabrication and installation process.

    Flush inside and out, the Fully Flush Casement window is a high-performing window with minimalist aesthetics that hide remarkable strength.

    The ultra-slim sections of the Stellar Flush Casement Window and The Fully Flush Casement Window are perfect for new builds as well as refurbishments in a wide range of options and finishes.

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