Stellar Casement Sash Windows

The Stellar Casement Sash brings together exceptional energy efficiency and a sleek, modern rebated design, making it an ideal choice when you want a window that delivers both style and high performance.

Product features

U-values as low as 1.1 W/m2K
Part L compliant with 28mm double glazing
WER to Band A++ with triple glazing
Up to 36mm triple glazing
PAS 24 security as standard
Market-leading slim sightlines
Pre-inserted gaskets
Fast-fit knock-in beads

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Description

The Stellar Casement Sash is all about sleek, modern style. Its crisp, clean lines and minimalist look make it perfect for creating a contemporary feel in any home.

Thanks to its ultra‑slim sightlines, you’ll enjoy more natural light and bigger, brighter views. You can also choose from a wide range of colours and finishes, textured, smooth, or even dual‑colour, so it’s easy to match your home’s style.

But it’s not just about looks. This window is built to perform.

Its smart design meets Part L regulations with 28mm double glazing, delivers U-values as low as 1.1 W/m²K, and can reach a Band A++ energy rating with triple glazing. That means greater warmth, lower energy bills, and all‑round comfort.

You’ll also have peace of mind with its strong security performance, PAS 24 comes as standard.

In short, the Stellar Casement Sash offers the perfect blend of modern design, impressive energy efficiency, and robust security, an ideal choice for your home.

Introducing Stellar – the multi-award-winning aluminium window and door system with the most innovative design features on the market. The Stellar aluminium window and door system is an adaptable system with exceptionally slim sections, excellent performance and a high-quality finish. Every individual window or door is a bespoke product, tailored to your precise specification and needs, but every part of the range delivers on the Stellar Promise.

Stellar also boasts a unique advantage. Its reverse butt joint ensures Stellar can always be glazed from the inside. Other systems rely on dummy window sashes, an approach which adds expense and compromises style, but Stellar’s patented solution ensures it has both the security you want and outstanding aesthetics.

Stellar consumes less material than other systems, can reach Band A++ thermal performance and is responsibly produced with a Green Guide A rating.

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