Steel Windows For Modern Architecture: An Emerging Trend

• April 22, 2025
• General

Once largely confined to industrial and period buildings, steel windows have undergone a transformation in recent years to become a key element in modern architecture.

Driven by homeowners seeking industrial and art-deco aesthetics, Crittall steel windows are now a common feature in contemporary exterior design.

At Lightfoot Windows, we’ve directly witnessed this increasing popularity, with architects, designers, and homeowners frequently choosing steel windows for their unique look and practical advantages. So what’s behind the trend of steel windows within modern architecture?

The popularity of steel in contemporary design

The appeal of steel windows in modern architecture lies in their adaptability, with Crittall windows suiting both heritage properties and contemporary homes.

The strength of steel frames allows for larger panes of glass without compromising structural stability, creating a striking visual impact that complements both minimalist and more complex architectural styles. Simultaneously, the utilitarian aesthetic of steel windows harks back to Victorian industrial design, complementing heritage homes beautifully.

Below, we’ll explore some of the reasons why steel is so popular in modern architecture.

Reason 1: aesthetics and visual appeal

The clean lines and sleek profiles of steel windows provide a timeless elegance that works exceptionally well in modern architectural contexts. Their defined grid patterns can become a distinctive design feature, and the traditional black Crittall colour creates a striking contrast with lighter bricks and stone facades.

The versatility of steel allows for a range of styles – from minimalist single panes to more traditional multi-light configurations – enabling architects and homeowners to achieve a specific aesthetic.

Reason 2: heritage-inspired design

What makes steel windows particularly interesting in modern architecture is how they bridge traditional craftsmanship with contemporary needs. The steel window designs we see today have evolved from techniques dating back to the late 19th century, yet they continue to feel fresh and relevant in the most cutting-edge buildings.

This connection between heritage and innovation allows architects to reference historical elements while creating thoroughly modern spaces.

Reason 3: slim profiles, maximum light

Perhaps the most significant advantage of steel windows in modern architecture is their ability to maximise natural light. The slim sightlines of steel frames – often far narrower than their uPVC counterparts – allow for substantially more glazed area within the same opening.

The increased daylight not only creates more inviting, open spaces but also contributes to reduced energy consumption for artificial lighting.

At Lightfoot, our range of internal Crittall windows allows for open-plan spaces to be visually separated while the slim profiles of the steel frames still allow natural light flow.

Reason 4: Complete design flexibility

This versatility of steel has made it a popular choice for signature architectural elements in both residential and commercial projects. At Lightfoot  Windows, we offer bespoke Crittall windows, tailored to any project. We can offer:

• Floor-to-ceiling glazing
• Dramatic corner windows
• Expansive picture windows
• Custom geometric shapes

Our window designs are complete with glazing options (including decorative reeded or obscured glass), varying grid designs and configurations and a range of quality hardware for the perfect finishing touch.

Reason 5: thermal performance

One misconception about steel windows is that they offer poor thermal performance. However, modern steel window systems like our Crittall range incorporate advanced thermal break technology that meets or exceeds the most stringent building requirements for energy efficiency.

These improvements allow steel windows to play a pivotal role in creating a comfortable living environment while minimising energy bills and reducing carbon footprint. The thermal performance of contemporary steel windows addresses both environmental concerns and practical considerations for year-round comfort.

Reason 6: sustainability in modern architecture

The sustainability of building materials has become a central concern in contemporary architectural design. Steel windows are an excellent choice for environmentally conscious renovation projects or new builds:

• The exceptional durability of steel means these windows can last decades with minimal maintenance, reducing the need for replacement.
• Steel is 100% recyclable, making it an environmentally responsible choice compared to alternatives.
• Modern steel windows provide excellent thermal efficiency and contribute to the overall energy performance of buildings.

Practical considerations

Beyond their aesthetic and environmental benefits, steel windows offer practical advantages for modern buildings:

• Weather resistance: Modern steel windows provide excellent protection against the elements.
• Security: The inherent strength of steel frames offers excellent security and prevents forced entry.
• Low maintenance: Contemporary finishing techniques result in long-lasting, low-maintenance windows.
• Acoustic performance: When specified with appropriate glazing, steel windows can contribute to sound insulation.

These practical benefits make steel windows not just a stylistic choice but a sound investment for modern buildings where performance is as important as appearance.

Steel windows, modern architecture: an enduring trend

The growing presence of steel windows in modern architecture represents more than just a passing trend. It reflects a deeper appreciation for materials that combine aesthetic refinement with practical performance.

As architects continue to explore the balance between light, space, and sustainability, steel windows will undoubtedly remain a significant element in contemporary design language.

At Lightfoot Windows, we’re proud to offer our range of authentic Crittall steel windows that honour traditional craftsmanship while meeting the demands of modern building projects.

Ready to explore steel windows for your project? Get a free estimate today

If you’re considering steel windows for your modern architectural project, our team at Lightfoot Windows can provide expert guidance every step of the way. With our extensive experience dating back to 1935, we understand how to integrate these distinctive elements into contemporary designs.

Contact us today to discuss your requirements or to arrange a visit to our London showroom. For a free quote or to discuss your project, complete our online contact form, call 020 8662 9090, or email general@lightfootwindows.co.uk.

Want to get a quick estimate on new Crittall windows? Simply visit our ‘Get An Estimate’ page and fill out the required information, and one of our friendly experts will get back to you within 48 hours.