Stylish, warm aluminium built on innovation
Prestige, our most thermally efficient window system offers the widest range of options meaning it’s suitable for the widest range of projects.
Engineered Elegance
Our most thermally efficient and versatile 72 – 80mm wide system, is available in casement, French, tilt & turn and fixed window styles, and has been designed to be sympathetic to the modern trend for light. Using slim sashes allows more light to flood into homes, helping create that important sense of tranquillity.
Featuring Unique Thermlock® Technology
Prestige combines aluminium’s clean lines with exceptional thermal performance for up to an A+ Window Energy Rating. Our innovative Thermlock® multi-chamber thermal design, hidden away inside each window and door, helps keep properties well insulated against the worst of the UK weather.

Inbuilt Security
Prestige’s full depth eurogroove also enables us to offer the latest high security, multipoint locking – helping keep homes safe and secure. Additional features like unique hinge protectors also help create exceptional levels of security. For added peace of mind choose our laminate glass upgrade – for Secured by Design accreditation –the official UK Police initiative ‘designing out crime’ through physical security.

Patented Construction
Our patented construction method – using threaded screws to bind corners tightly together – helps eliminate misaligned corner issues that can occur on ordinary aluminium frames. This allows each Sheerline window to be individually hand tuned to perfection. Leaving you with the perfect balance of understated refinement coupled to exacting quality standards, where no detail’s overlooked.
Reverse Butt Joint Options
An evolution of our traditional corner cleat, our new patented T cleats enable fabricators to manufacture reverse butt jointed windows using our newly introduced Prestige Z transom for fully internally glazed windows.
This elegant solution eliminates the need to use external glazing, costly reverse adaptors or dummy sashes helping with competitive tenders, by saving on material and labour costs.
Stylish aluminium windows that combine exceptional thermal performance with refined looks
Fabricator and Installer Friendly

Clip-in Beads
Pre-gasketed clip-in beads – remove the need to wedge gasket or mill beads. Saving time in both fabrication and installation.

Full Depth Eurogroove
A Full Depth Eurogroove gives a wide choice of hardware and cross compatibility with PVC-U systems, with a 17mm stack height for hinges.

Versatile Options
Tilt & Turn, Raked, Arched and AOV options (Automated Opening Vent) – perfect for commercial contract opportunities.
Sightlines
Based on choice of outer frame
PICTURE WINDOWS
46mm
60mm
70mm
CASEMENT & FRENCH
88mm
102mm
112mm
TILT & TURN WINDOWS
95mm
109mm
119mm
U-VALUES
1.4 U-value
W/(m²K)
Double glazed
1.0 U-value
W/(m²K)
Triple glazed*
* 1.1 U-value with stepped sashes
Our Colour Range
Agate Grey
RAL 7018
Matt
Anthracite Grey
RAL 7016
Matt
Jet Black
RAL 9005
Matt
Chocolate Brown
RAL 8017
Matt
Cream
RAL 9001
Matt
Pure White
RAL 9010
Matt
Hipca Gloss White
RAL 9910
Gloss
Squirrel Grey
RAL 7000
Matt
Pastel Turquoise
RAL 6034
Matt
Silver
Metallic Effect
Mid Bronze
Metallic Effect
Black
Metallic Effect
Start Your Aluminium Project Today
Let’s discuss your requirements and create a tailored solution that fits your space perfectly.