Aluminium Sliding Doors

Maximise light, space, and style with our aluminium sliding doors. Designed for breathtaking views and effortless operation, you can choose from limitless colours and finishes for a look that’s as stunning as it is durable.

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Our Aluminium Sliding Doors

Aluminium sliding doors opening to a scenic outdoor view with a pool and patio area.

Cortizo COR Vision Sliding Door

The COR Vision sliding door from Cortizo is a super slender aluminium system offering outstanding versatility and creating a high-end sliding door solution for any property. Frames can also be embedded with the surrounding walls, maximising the amount of glass on display.

  • U-value of 1.3 W/m²K
  • 20mm interlock profile
  • 30mm maximum glazing thickness
  • Up to 6 sashes and 3 rails
  • Polyamide strip length from 16 to 24mm
  • Maximum sash width of 2500mm and height of 3000mm
  • Maximum sash weight of 320kg

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Aluminium sliding pocket doors for sleek, space-saving interior design.

Cortizo 4600 Sliding Door

Cortizo’s 4600 lift and slide door completely transforms the look of any space, while exhibiting some of the best thermal efficiency on the market. The system is perfect for enclosing large spaces while providing maximum light, with an ultra-smooth opening action and perfect sash sliding over a stainless steel track.

  • U-value of 0.9 W/m²K
  • 110mm standard section and minimalist solution of 50mm
  • Possibility of large sash dimensions ideal for enclosing large spaces
  • Maximum glazing thickness of 55mm
  • Maximum sash width of 3300mm and height of 3300mm
  • Maximum sash weight of 400kg

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Sliding door with large glass panels showcasing a lush garden scene.

Cortizo 4700 Sliding Door

The 4700 sliding door system offers superb contemporary styling and robustness while also maximising natural light. Modern and practical, this system creates a seamless transition between indoor and outdoor spaces while delivering energy efficiency and thermal retention.

  • U-value of 1.1 W/m²K
  • Stainless steel rails allow for ultra-smooth sliding
  • Maximum glazing thickness of 34mm
  • 47mm interlock profile
  • Maximum sash width of 2500mm and height of 3000mm
  • Maximum sash weight of 280kg

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Aluminium sliding doors offering seamless indoor-outdoor connection in a contemporary home.

Cortizo COR Vision Plus Sliding Door

The Cortizo COR Vision Plus Sliding door is a minimalistic sliding system specifically suitable for large dimensions, allowing the maximum luminosity with a minimum visible section of aluminium. Its extraordinary thickness capacity allows the placement of glass panes up to 54mm thickness, guaranteeing the best acoustic and thermal performance.

  • U-value of 0.9 W/m²K
  • 56mm maximum glazing thickness
  • Sliding of 2, 4, or 6 sashes, and up to 4 rail configurations
  • Possibility of corner sash encounters of 90 degrees without mullions
  • Maximum sash width of 4000mm and height of 4000mm
  • Maximum sash weight of 400kg

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Our Premium Aluminium Front Doors

Aluprof pivot door with large glass panels and black finish.
Modern black Aluprof pivot door with glass panel in brick house entrance.
Contemporary Aluprof pivot door with side panels for stylish entryways.

Technical Specifications

Technical Specifications

  • COR Vision — Ultra-Slim Sliding
    20 mm interlock sightline, frame depth 116 mm (2-rail) / 182 mm (3-rail), max panel 2500 × 3000 mm, max weight 320 kg, U-value from 1.3 W/m²K
  • Cortizo 4700 — Standard Sliding
    47 mm interlock sightline, frame depth 120 mm (2-rail) / 185 mm (3-rail), max panel 2500 × 3000 mm, max weight 300 kg (lift & slide), U-value from 1.1 W/m²K with triple glazing
  • COR Vision Plus — Oversized Sliding
    Designed for maximum glass area, panels up to 3000 × 3500 mm, ideal for grand openings and architectural statements
  • Security
    All sliding door systems tested to PAS 24:2022 enhanced security standard
  • Glazing Options
    Double glazing (26–32 mm) and triple glazing (up to 36 mm), argon gas filled, Low-E coatings, acoustic and solar control options
  • Threshold Options
    Standard raised, low, and flush threshold configurations for accessibility and weather performance
  • Colour Range
    Full RAL palette including dual-colour (different inside/outside), textured finishes, and marine-grade coatings
  • Weather Performance
    Tested to BS 6375 — Class 4 air permeability, Class E1200 water tightness, Class C5 wind resistance

Glass Options

All our aluminium sliding doors are available with a choice of high-performance glazing to suit your project requirements:

  • Double-glazed sealed units — standard specification for thermal efficiency
  • Triple-glazed units — enhanced thermal and acoustic performance
  • Acoustic laminated glass — for noise reduction in urban and roadside locations
  • Solar control glass — reduces heat gain and glare while maintaining natural light

We specify the optimal glass configuration for each project based on thermal performance, acoustic requirements and Building Regulations compliance.

Close-up of aluminium sliding door frame with multiple glass panels.

Colours & Finishes

Colours & Finishes

Our aluminium sliding doors are available in three premium finish categories — anodised, matt RAL and textured RAL — with dual-colour options allowing a different finish inside and outside. Woodgrain foil finishes are also available for a natural timber-effect appearance.

Popular RAL Colours

  • RAL 7016 Anthracite Grey
  • RAL 9005 Jet Black
  • RAL 7021 Black Grey
  • RAL 9010 Pure White
  • RAL 9001 Cream White
  • RAL 7012 Basalt Grey
  • RAL 7022 Umbra Grey
  • RAL 6009 Fir Green
  • RAL 8014 Sepia Brown

Any standard RAL colour is available to order. Slimline sliding doors are often specified with a matt or textured finish in darker tones to maximise the contrast between frame and glass.

Aluminium Sliding Doors FAQs

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How can aluminium sliding doors enhance my space?

Our state-of-the-art aluminium sliding doors allow you to make a bold statement while saving valuable space. They create a modern and elegant ambiance, offering multiple panes and tracking systems that provide ultra-wide apertures.

What sets Direct Trade Windows' Aluminium sliding doors apart?

At Direct Trade Windows, our sliding doors are bonded by high-end glass to ensure maximum performance and durability. We prioritize the use of up-to-date materials with modern aesthetics, resulting in doors that are not only stylish but also long-lasting.

What benefits do these sliding doors offer in terms of installation?

Our sliding doors are designed to reduce space effectively, making them an excellent choice for properties with balconies. Their multi-track functionality is particularly useful for accommodating multiple sashes and creating expansive apertures.

How do these doors contribute to interior lighting?

These sliding doors are designed to be light-enhancing, allowing ample natural light to flood into any property. They provide an effective way to brighten up interior spaces.

Are these sliding doors compliant with accessibility standards?

Yes, our sliding doors are compliant with government standards for wheelchair accessibility, ensuring inclusivity in their design.

More products to consider

Cortizo logo FENSA logo BFRC logo Accreditation logo for Direct Trade Windows company. Constructionline Gold Member badge for trusted building industry standards. Close-up of a window with a focus on the frame and glass. Aluminium window with sleek design and modern finish.