Alitherm 400 Windows
Smarts Alitherm 400 aluminium windows. PAS24 approved, WER A+ rated and fully compliant with Part L of the Building Regulations.
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Heritage Aluminium Windows
Steel-Look heritage aluminium windows capture the elegance of traditional steel glazing whilst delivering modern performance, energy efficiency and long-lasting durability. Part of the Affordable Windows Group, the Steel-Look range offers slim sightlines, outstanding thermal performance and low maintenance aluminium frames.
Available with matching doors and internal screens, these windows are supplied direct to trade by Midland Aluminium with free nationwide delivery.
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Authentic Steel-Look Aesthetic
Aluminium profiles replicate the timeless look of traditional steel windows, delivering the heritage aesthetic without the drawbacks of original steel.
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Low Maintenance
Unlike original steel or timber windows, Steel-Look heritage aluminium windows require no painting, treating or rust prevention.
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Multiple Window Configurations
Available in fixed, casement, full-height screens and coupled units, giving you flexibility for any project.
- Security
- Colours
Security You Can Rely On
Steel-Look heritage aluminium windows are approved to PAS24 and fully compliant with Document Q — the UK's enhanced security standards for windows and doors. That means every window meets one of the most rigorous security tests in the industry straight out of the box.
Colour Options
Steel-Look heritage aluminium windows are available in a wide range of powder coated colours, with classic black and anthracite grey being the most popular choices for heritage and conservation area projects. Every colour is finished to a durable 60 micron powder coat standard, ensuring the frames stay looking their best for years to come.
Black
Cream
Agate Grey
Pebble Grey
Dark Brown
White
Slate Grey
Anthracite Grey
Black
Cream
Agate Grey
Pebble Grey
Dark Brown
White
Slate Grey
Anthracite Grey
View our Gallery
Giving Period Properties a New Lease of Life
For homeowners with older properties, finding a window that respects the character of the building whilst delivering modern performance is not always straightforward. Steel-Look heritage aluminium windows solve that problem. Designed to replicate the slim sightlines and elegant proportions of original steel and timber windows, they give period homes a fresh lease of life without compromising their architectural integrity.
Advanced thermal break technology and high-performance double glazing bring energy efficiency and weather resistance up to modern standards, whilst the authentic steel-look aesthetic ensures the character of the property is preserved.
Steel-Look Aesthetic Without the Drawbacks
Traditional steel windows have a timeless appeal that is difficult to replicate — but Steel-Look comes closer than anything else on the market. Expertly crafted aluminium profiles capture the slim, crisp sightlines and elegant proportions of original steel glazing, delivering an authentic heritage aesthetic that works beautifully on period homes, barn conversions and contemporary extensions alike.
Where original steel windows suffer from rust, drafts and condensation, Steel-Look heritage aluminium windows deliver the same iconic look with none of the problems — and none of the regular maintenance that goes with them.
Your Questions Answered
Not sure which product is right for your project, or want to know more about how we work? Here are the answers to the questions we get asked most often.
Steellook is a specialist heritage aluminium window and door range from the Affordable Windows Group — one of the UK's largest and most trusted manufacturers and trade suppliers of aluminium and uPVC windows, doors and conservatories. The aluminium range encompasses external windows and doors as well as internal doors and screens.
Yes. Steel-Look heritage aluminium windows are an excellent choice for conservation area projects. Slim sightlines, authentic steel-look detailing and a wide range of heritage colours make them a sympathetic and appropriate choice for sensitive refurbishments where planning requirements demand a traditional aesthetic. We recommend checking with your local planning authority before specifying any window in a conservation area.
Absolutely. Whilst they are a natural choice for period and heritage projects, Steel-Look heritage aluminium windows work equally well on contemporary new builds and modern extensions. The slim, clean sightlines and steel-look aesthetic deliver a sharp, refined finish that is increasingly popular on high-end contemporary developments.
Yes. Steel-Look heritage aluminium windows are fully compliant with Part L of the Building Regulations, making them a reliable and straightforward specification choice for any new build or refurbishment project where Document L compliance is required.
The Steel-Look heritage range is available in fixed windows, casement windows with top or side hung opening options, full-height screens and coupled units. This gives you the flexibility to specify the right configuration for any elevation, project type or architectural requirement.
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