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AluLite Fixed Window – Slimline Aluminium Heritage Design

The iSteel AluLite Fixed Window expertly combines ultra-slim aluminium sightlines with a classic heritage steel window aesthetic. Designed for both modern and traditional properties, this window offers exceptional thermal performance and enhanced security.

Ideal for homeowners, architects, and renovation projects, especially for listed buildings, the AluLite Fixed Window balances form and function beautifully. Custom-made to order, it allows for personalization in color, glass specifications, and crossbars to meet your specific style and performance requirements.

Request a bespoke quote

Call: 0330 1331 069
Email: [email protected]
Visit: Unit B, Glaziers Yard, 15 Chambers Road, Platts Common Est, Barnsley S74 9SA

Heritage-Style Slimline Design

The AluLite system replicates the elegance of traditional steel windows with minimal sightlines, making it suitable for various architectural styles.

Bespoke Customisation

Select from an extensive range of colors, handle styles, and glazing options to create a unique window solution tailored to your vision.

Energy Efficiency

The thermally broken design keeps your home warm and reduces heat loss, achieving a U-Value of 1.6 W/m²K for superior energy performance.

Robust Security

Constructed with toughened glass, and a durable aluminium frame, this window ensures excellent security and long-lasting durability.

Black framed window with three horizontal glass panes
Modern black metal window frame with three horizontal bars
Minimalist black square window with three horizontal panes

Need more info?

Feel free to give us a call if you would like to discuss our products in detail on 0330 1331 069. 

COLOUR OPTIONS

Available in Black, White, Anthracite Grey and a wide range of bespoke colours.

Simple blank circle with a thin black outline on a white background

Matt White RAL9003

Solid black circle with a white background for graphic design

Matt Black RAL9005

Dark grey circle on a plain white background for design use

Matt Anthracite RAL7016

PERFECT FOR:

  • Listed building renovations
  • Luxury home installations
  • Architect-designed projects requiring steel-look windows
  • iSteel AluLite is available as an opening window
Minimalist black square window with three horizontal panes
FRAME & LEAF
  • Features a 48mm outer frame, making it one of the slimmest aluminium exterior products available, while maintaining thermally broken specifications.
THERMAL PERFORMANCE
  • Thermally broken construction ensures a U-Value of 1.6 W/m²K for optimal insulation.
GLASS
  • 28mm Argon-filled double glazing with Low-E coating, offering superior insulation (Glazing U-Value: 1.2)
DESIGN FLEXIBILITY
  • Optional 40mm face-applied transoms and mullions with colour-matched intra-spacer bars for a seamless, heritage-style appearance.
COLOUR

Standard colours including Black, White and Anthracite Grey but most colours are possible.

USE

This product is for external use only.

ISTEEL ALULITE

Featuring a super slim frame

Crafted in the UK from the highest-grade aluminium, the iSteel AluLite range delivers outstanding performance along with a sleek, slimline design.

Whether you’re undertaking a contemporary new build or a heritage restoration, the AluLite Fixed Window provides the perfect combination of aesthetics and energy efficiency.

servicing zones

Zone 1: Lancaster, Ripon, York, Leeds, Wakefield, Sheffield, Hull, Manchester, Liverpool, Chester, Lincoln, Nottingham, Derby, Leicester and surroundings.

Zone 2: Carlisle, Newcastle, Durham, Birmingham, Coventry, Peterborough, Cambridge, Ely, Worcester, Gloucester, Hereford, Bangor and surroundings.

Zone 3: Swansea, Cardiff, Bristol, Salisbury, Winchester, Oxford, London, Clemsford, Norwich, Wells and surroundings.

Zone 4: Glasgow, Edinburgh, Stirling, Perth, Dundee, St Davids, Plymouth, Exeter, Southhampton, Portsmouth, Brighton, Canterbury and surroundings.

Map of the United Kingdom divided into colour coded zones

Why choose bespoke iSteel

Please call us directly or email us at the address below if you require any assistance.

Design

iSteel have our own dedicated design team that will work with you to create the perfect design solution, tailored to your bespoke requirements.

Installation

Watch a video of a typical installation here

Warranty

All iSteel products have a 12-month warranty for mechanisms and a factory warranty for components. The warranty does not cover damage caused by negligent operation or deliberate damage.

Order Process

Ordering from iSteel is simple, send us your enquiry and our sales team will guide you through the process. For more information, please visit our order process page.