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Craftsmanship Behind Crittall-Style Steel Windows and Doors

  • Writer: Leandro da costa
    Leandro da costa
  • Nov 3, 2025
  • 4 min read

Steel windows and doors have become a hallmark of timeless design, blending industrial strength with elegant aesthetics. Among these, Crittall-style steel windows and doors stand out for their distinctive look and enduring quality. This post explores the craftsmanship behind these iconic architectural elements, revealing why they remain a popular choice for both heritage restorations and modern homes.


Close-up view of Crittall-style steel window frame showing intricate metalwork and glass panes
Detailed craftsmanship of a Crittall-style steel window frame

Origins of Crittall-Style Steel Windows and Doors


The story of Crittall-style steel windows begins in the early 20th century. The Crittall company, founded in England, pioneered the use of steel for window frames, offering a durable alternative to traditional wood. Their designs quickly gained popularity for industrial buildings, factories, and later, residential homes.


Steel’s strength allowed for slimmer frames and larger glass panels, creating a sleek, grid-like pattern that maximized natural light. This style became synonymous with modernist architecture and art deco design, celebrated for its clean lines and functional beauty.


Materials and Techniques Used


The hallmark of Crittall-style windows and doors is the use of high-quality steel. The metal is carefully selected for its strength, durability, and resistance to corrosion. The steel is typically galvanized or powder-coated to protect against rust and weather damage.


Craftsmen use precise cutting and welding techniques to create the thin, uniform frames. Each frame is assembled with attention to detail, ensuring tight joints and smooth finishes. The glass panes are often set into the frames with putty or rubber gaskets, providing a secure and weather-tight seal.


Key materials and techniques include:


  • Mild steel for strength and flexibility

  • Galvanization or powder coating for long-lasting protection

  • Precision welding to maintain slim profiles

  • Custom glass fitting for perfect alignment and insulation


Design Features That Define Crittall Style


Crittall-style windows and doors are instantly recognizable by their grid pattern, which divides the glass into smaller panes. This grid is not just decorative; it adds structural support to the large glass surfaces.


Common design features include:


  • Slim steel profiles that maximize glass area

  • Rectangular or square grid patterns for a balanced look

  • Operable sections such as casement or pivot windows for ventilation

  • Black or dark finishes that highlight the metalwork


These features combine to create a look that is both industrial and elegant, suitable for a wide range of architectural styles.


The Craftsmanship Process


Creating Crittall-style steel windows and doors involves several skilled steps:


  1. Design and Measurement

    Craftsmen begin by taking precise measurements of the window or door opening. Custom designs may be created to match specific architectural requirements.


  2. Cutting and Fabrication

    Steel sections are cut to size using specialized tools. The pieces are then shaped and prepared for assembly.


  3. Welding and Assembly

    Skilled welders join the steel sections, ensuring clean, strong joints. The grid pattern is carefully aligned to maintain symmetry.


  4. Surface Treatment

    The assembled frames undergo galvanization or powder coating to protect against corrosion and enhance appearance.


  5. Glass Installation

    Glass panes are cut to fit each section of the grid. They are installed with putty or gaskets to secure them and provide insulation.


  6. Final Inspection

    Each window or door is inspected for quality, fit, and finish before installation.


This process requires a combination of metalworking expertise and an eye for detail. The result is a product that balances form and function.


Benefits of Choosing Crittall-Style Steel Windows and Doors


There are several reasons why homeowners and architects choose Crittall-style steel windows and doors:


  • Durability: Steel frames last longer than wood or aluminum when properly maintained.

  • Aesthetic appeal: The slim profiles and grid patterns create a timeless look.

  • Light maximization: Larger glass areas allow more natural light into interiors.

  • Versatility: Suitable for both traditional and contemporary buildings.

  • Energy efficiency: Modern versions can include double glazing and thermal breaks.


These benefits make Crittall-style windows a smart investment for both style and performance.


Maintaining Crittall-Style Steel Windows and Doors


Proper maintenance helps preserve the beauty and function of steel windows and doors. Here are some practical tips:


  • Regular cleaning with mild soap and water to remove dirt and grime.

  • Inspecting for rust and addressing it promptly with rust remover and touch-up paint.

  • Lubricating moving parts like hinges and locks to ensure smooth operation.

  • Checking seals and gaskets to prevent drafts and water leaks.


Routine care extends the lifespan of these windows and keeps them looking their best.


Examples of Crittall-Style Windows in Architecture


Many historic and modern buildings showcase the appeal of Crittall-style steel windows:


  • Art Deco homes in London often feature original Crittall windows, preserving the era’s character.

  • Industrial loft conversions use steel windows to maintain an authentic factory feel.

  • Contemporary houses incorporate Crittall-style doors to add a touch of elegance and light.


These examples highlight the style’s adaptability and enduring charm.


Customization Options


Modern manufacturers offer various customization options to suit different tastes and needs:


  • Color finishes beyond traditional black, including white, grey, or bespoke shades.

  • Glass types such as frosted, tinted, or acoustic glass for privacy and comfort.

  • Hardware choices including handles, locks, and hinges in different styles and finishes.

  • Window configurations like fixed, casement, sliding, or pivot designs.


Customization allows homeowners to create windows and doors that complement their unique spaces.


Why Craftsmanship Matters


The quality of craftsmanship directly affects the performance and appearance of Crittall-style steel windows and doors. Poorly made frames can lead to issues like warping, rust, and poor insulation. Skilled artisans ensure that every weld, cut, and finish meets high standards.


Investing in craftsmanship means:


  • Long-lasting durability

  • Precise fit and finish

  • Enhanced aesthetic appeal

  • Better energy efficiency


Choosing a reputable maker guarantees a product that stands the test of time.



Crittall-style steel windows and doors combine strength, style, and precision craftsmanship. Their distinctive grid patterns and slim steel frames create a look that enhances any building. Whether restoring a historic property or designing a modern home, these windows offer lasting beauty and function. Consider the craftsmanship behind each frame when selecting your next windows or doors to ensure quality and timeless appeal.

 
 
 

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