Industrial Elegance. Slimline Design.

At AT-ECO Windows & Doors, we offer premium Slim Line systems through Schüco aluminium and steel solutions that combine the iconic aesthetic with 21st-century performance standards.

Slim Line Style Steel-Framed Door

What Are Slim Line Doors?

Slim Line doors are elegant steel-framed glass door systems defined by their slim, grid-like sightlines and industrial heritage. Originally popularised in the early 20th century, these doors have seen a strong resurgence in modern architectural design for both interior partitions and external entrances.

Benefits of Slim Line Door Design

Combining timeless visual appeal with robust framing and expansive glazing, Slim Line doors enhance both period and contemporary spaces. With ultra-slim profiles and strong structural integrity, they’re a popular choice for designers, architects, and discerning homeowners.

Key Features

  • Slimline Grid Profiles: Create the signature Slim Line aesthetic with elegant glazing bars.
  • High Glass-to-Frame Ratio: Maximises natural light and visual transparency.
  • Robust Metal Framing: Offers structural strength and durability in steel or aluminium.
  • Thermally Broken Frames: Maintains energy efficiency while preserving slim sightlines.
  • Bespoke Configurations: Available as single, double, or sliding doors; internal or external.

Why Choose Slim Line Doors?

  • Iconic design for heritage and industrial-style homes
  • Garden rooms, and modern extensions
  • Ideal for internal partitions, rear extensions, and balcony doors
  • Available in heritage black, bronze, and custom powder-coated finishes
  • Combines design authenticity with modern-day insulation and security

U-Value and Performance Overview

Brand Frame Material U-Value (W/m²K) Frame Type Internal/External Use
Schüco Aluminium/Steel ~1.2 Slimline, thermally broken ✅ Both
Janisol/Jansen Steel (by Schüco) ~1.7-2.0 Slim steel, glazed ✅ Both
Internorm Aluminium ~0.87 Slim, insulated entrance door with 3 gaskets ❌ Inward only

Smart Technology Integration

Although often selected for their classic appeal, Schüco Slim Line doors can integrate modern features:

  • Magnetic locking or electronic latching
  • Remote locking control
  • Optional opening sensors

Suitable Applications

  • Interior partitions and room dividers
  • Garden and patio access
  • Side extensions and orangeries
  • High-end residential and boutique commercial spaces
  • Homes seeking heritage or industrial charm

Warranty and Technical Support

All systems are backed by Schüco and AT-ECO support:

  • Manufacturer-backed performance guarantees
  • Assistance with bespoke design and sizing
  • Installation guidance and ongoing maintenance tips

Sustainability Considerations

  • Made with recyclable aluminium and steel materials
  • Durable powder-coated finishes that minimise repainting
  • Thermally broken frames for improved energy performance
  • Long lifespan reduces replacement needs and material waste

Slim Line doors are a design statement that brings both history and innovation to your property.

Areas We Serve

We cover London and the South & East of England, including:

  • London
  • Kent
  • Essex
  • East Sussex
  • West Sussex
  • Surrey
  • Hertfordshire
  • Oxford
  • Oxfordshire
  • Cambridge
  • Cambridgeshire
  • Wiltshire
  • Buckinghamshire
  • Bedfordshire

Recent Work

Working closely with architects, builders, and homeowners, we’ve delivered systems that combine thermal efficiency, modern aesthetics, and long-term durability—across private residences, sustainable developments, and architect-led designs.

Expert Advice & Insights

Stay informed with detailed material comparisons, installation tips, and practical maintenance strategies designed to maximise the longevity and performance of your windows and doors.

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Build It Live South East

Yes, we recommend booking an appointment to ensure personalised service and availability. You can schedule your visit by filling out our contact form or emailing us at [email protected].

During your visit, our team will guide you through our range of premium window and door systems. We’ll answer your questions, help you explore customisation options, and assist in finding the perfect solution for your project.

Absolutely! Bringing your project plans or drawings can help our team better understand your needs and provide tailored recommendations.

Our knowledgeable team is here to help. Whether you need advice on materials, styles, or energy efficiency, we’ll guide you through the process and ensure you make an informed decision.

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