Crittall – Style Windows
Industrial charm. Modern engineering. Timeless appeal.
At No1 London, we specialise in Crittall style windows in London, combining the iconic elegance of classic steel glazing with the benefits of modern materials and performance.
These windows are designed to create slim sightlines, maximum light, and a distinct architectural character, making them ideal for both traditional renovations and contemporary interiors. Available in steel or aluminium frames, our Crittall-style windows replicate the signature grid design while offering superior insulation, security, and weather resistance. For a useful overview of what to consider when choosing window styles and specifications, see the Planning Portal guide
info@no1london.co.uk | 0207 8889 09 09
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Why Choose Crittall-Style Windows
- Slim, elegant profiles – maximise light and create striking visual lines.
- Industrial-inspired design – perfect for modern and period homes alike.
- Thermally broken frames – excellent insulation and energy efficiency.
- Versatile applications – suitable for exterior and interior partitions.
- Customisable finishes – available in any RAL colour, matte or gloss.
- Precision manufacturing – made to measure and expertly installed.
Frame Options
Steel Crittall Windows
Authentic, hand-welded steel frames with ultra-slim profiles and exceptional strength. Perfect for heritage projects, listed properties, and architectural restorations.
Aluminium Crittall-Style Windows
Lightweight, corrosion-resistant, and thermally efficient — ideal for contemporary extensions and loft conversions while maintaining the Crittall aesthetic.
Design Styles
- Fixed and Casement Windows – slim vertical and horizontal divisions for classic looks.
- French & Bi-Fold Systems – combine interior and exterior flow with uniform styling.
- Internal Glass Partitions – perfect for offices, studios, and open-plan homes.
- Feature Windows & Screens – create modern focal points with grid glazing.
Technical Features
- Frame Depth: 40–70 mm
- Glazing Options: Single, double, or triple glazing
- Thermal Break: Included on aluminium systems for improved performance
- U-Value: From 1.3 W/m²K
- Security: Multi-point locking and toughened glass as standard
- Finish: Polyester powder-coated to any RAL colour
Applications
- Period property restorations
- Modern extensions and loft conversions
- Internal room dividers and glass walls
- Commercial and studio spaces
- Boutique retail or hospitality interiors
Finishes & Colours
- Matte Black – the timeless Crittall aesthetic
- Anthracite Grey / Bronze / Graphite – for a softer, modern tone
- Dual Colours – custom interior and exterior combinations
- Glazing Options: Clear, frosted, reeded, or patterned for privacy and style
Our Process
Consultation & Design
– we define your layout, frame material, and finish.
Survey & Quotation
– detailed measurement and technical review.
Fabrication
– precision manufacturing to your exact dimensions.
Installation
– seamless fitting with structural integrity and finishing.
Aftercare
– maintenance guidance and long-term product support.
Benefits
- Timeless, minimalist aesthetic
- Enhances natural light and spatial flow
- Robust and secure with modern performance
- Versatile across residential and commercial interiors
- Adds architectural value and sophistication
Service Areas
We supply and install Crittall-style windows and partitions across Fulham, Chelsea, Kensington, Hammersmith, Putney, Wimbledon, Chiswick, Westminster, the City, and Surrey, working closely with homeowners, architects, and developers.
Classic Design. Modern Craftsmanship.
Bring industrial-inspired beauty and architectural precision into your home with No1 London’s Crittall-style windows — crafted for strength, light, and style.
Get Free Estimate today and see why we’re the No1 Stop for all your home needs.
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