Crittall-style windows have become one of the most sought-after window designs in the UK, combining industrial heritage with contemporary aesthetics. Originally associated with factories, warehouses, and Art Deco architecture, these distinctive steel-look windows are now a popular choice for homeowners, architects, and developers alike.

But are Crittall-style windows the right choice for your property?

In this guide, we explore the advantages and disadvantages of Crittall-style windows, helping you determine whether they suit your home, budget, and long-term requirements.

What Are Crittall-Style Windows?

Crittall-style windows are characterised by their slim frames and distinctive grid pattern, often referred to as glazing bars. While the original designs were manufactured from steel, many modern versions are now produced using aluminium to replicate the iconic appearance while improving thermal performance and reducing maintenance.

Typical features include:

• Slim sightlines
• Multiple glazed sections
• Industrial-inspired design
• Black, anthracite, or dark-coloured frames
• Large glass areas
• Contemporary and heritage appeal

Today, the term “Crittall-style” is often used to describe steel-look windows and doors inspired by the original designs.

Why Are Crittall-Style Windows So Popular?

Crittall-style windows have become increasingly popular thanks to their ability to suit both traditional and modern properties.

They are commonly installed in:

• Contemporary home extensions
• Period property renovations
• Loft conversions
• New-build developments
• Kitchen extensions
• Garden rooms

Their timeless appearance allows them to bridge the gap between traditional architecture and modern design trends.

The Advantages of Crittall-Style Windows

1. Exceptional Aesthetics

One of the biggest reasons homeowners choose Crittall-style windows is their appearance.

The slim profiles and geometric glazing bars create a striking architectural feature that adds character to almost any property.

Benefits include:

• Premium appearance
• Timeless design
• Increased kerb appeal
• Suitable for both modern and period homes
• Strong architectural presence

For many homeowners, the visual impact alone justifies the investment.

2. Slim Frames Mean More Glass

Modern aluminium Crittall-style systems can achieve exceptionally slim sightlines.

This allows:

• Larger glazed areas
• Increased natural light
• Better external views
• Brighter living spaces

Natural light remains one of the most desirable features in modern home design, making slim-framed windows increasingly attractive.

3. Suitable for Modern and Traditional Properties

Unlike some contemporary window designs that only suit modern architecture, Crittall-style windows are remarkably versatile.

They complement:

• Victorian homes
• Edwardian properties
• Industrial-style conversions
• Contemporary extensions
• Luxury new-builds

Few window styles offer such broad design flexibility.

4. Strong and Durable Construction

Most modern Crittall-style windows are manufactured using aluminium.

Aluminium offers:

• Excellent structural strength
• Resistance to warping
• Corrosion resistance
• Long lifespan
• Minimal maintenance requirements

This makes them particularly well suited to the UK’s often unpredictable weather conditions.

5. Increased Property Value

Premium glazing products can contribute positively to a property’s perceived value.

Many buyers are attracted to:

• Architectural features
• Modern glazing systems
• Improved natural light
• Distinctive design elements

Crittall-style windows often create a strong first impression, which can enhance overall market appeal.

The Disadvantages of Crittall-Style Windows

1. Higher Cost Than Standard Windows

One of the most significant drawbacks is price.

Crittall-style windows typically cost more than standard uPVC windows due to:

• Specialist manufacturing
• Complex glazing bar designs
• Premium materials
• Bespoke fabrication requirements

While they offer excellent aesthetics, homeowners should expect a higher initial investment.

2. Potentially Reduced Glass Area

Although the frames themselves are slim, the addition of multiple glazing bars means there is more framing overall compared to uninterrupted glazing systems.

This can slightly reduce:

• Visible glass area
• External views
• Solar gain

For some homeowners, however, this visual feature is precisely what makes the design appealing.

3. Cleaning Can Take Longer

More glazing bars generally mean more individual panes and sections to clean.

Compared with a large uninterrupted window, maintaining multiple glazed sections can require additional time and effort.

While not a major issue, it is worth considering for larger installations.

4. Not Always the Most Cost-Effective Choice

If your primary goal is simply energy efficiency and affordability, other window systems may provide better value.

Homeowners prioritising budget may find standard aluminium or high-performance uPVC windows more economical.

Crittall-style windows are often chosen as much for their appearance as their performance.

Are Crittall-Style Windows Energy Efficient?

Modern Crittall-style windows can achieve excellent thermal performance when manufactured using thermally broken aluminium frames and high-performance double or triple glazing.

Benefits include:

• Reduced heat loss
• Improved insulation
• Lower energy bills
• Increased comfort

Older steel-framed systems historically suffered from poor thermal efficiency, but modern designs have overcome many of these issues.

Are Crittall-Style Windows Worth It?

For homeowners seeking a distinctive architectural feature, many would argue that Crittall-style windows are absolutely worth the investment.

They combine:

• Timeless aesthetics
• Strong durability
• Modern performance
• Increased natural light
• Premium appearance

However, they may not be the ideal solution for every budget or project.

The decision ultimately depends on whether appearance and design are key priorities alongside performance.

Final Thoughts

Crittall-style windows continue to be one of the most desirable glazing options for UK homes. Their iconic industrial-inspired appearance, slim sightlines, and versatility make them suitable for everything from contemporary extensions to period property renovations.

While they often require a larger initial investment than standard window systems, many homeowners consider the aesthetic benefits, durability, and long-term appeal to be well worth the cost.

At No1 London, we supply and install high-quality Crittall-style windows, aluminium windows, doors, and glazing systems tailored to each property’s requirements. Whether you’re renovating a period home, planning a modern extension, or simply exploring your options, our experienced team is here to help, advise, and assist throughout the entire process.

As a trusted supplier serving homeowners, architects, and developers across London and the surrounding areas, No1 London is committed to providing expert guidance, quality products, and professional installation designed to stand the test of time.

Because sometimes a window isn’t just a window. Sometimes it’s a carefully engineered way to make neighbours slow down and stare at your extension.