• Bring the Outside In

    Aluminium Bi-fold Door Systems

    Offering impressive opening apertures that unite internal and external spaces. Allstyle bi-folding doors are fabricated using the Smart Visofold 1000 system to create unique living and social areas.

Affordable Aluminium Bi-fold Doors

The Smart Choice

Our aluminium bi-folding doors offer impressive opening apertures that can create unique living and social areas. They bring light and space into your home as well as provide a large clear opening that unites internal and external areas.


Our range of Aluminium Folding Doors is manufactured from dedicated profiles designed by Smart Systems, one of the UK’s leading Architectural Aluminium designers. The Visofold series of folding sliding doors have been available in the UK and Europe for many years and is suitable for both residential and commercial applications. They are ideal alternatives to sliding panel doors, or to open up an entire wall as part of a conservatory. This system will make the most of a beautiful view or bring a garden into the home.


Allstyle Aluminium bi-fold doors are manufactured from slim, 60mm thermally broken profiles to ensure maximum glass widths can be achieved using the minimum number of panels. This allows for more natural light and unobstructed views of the outside world. No additional mullions are required between the panels, otherwise broadening the sight lines, so panels folding and sliding in the same direction have a width of just 132mm – between the edges of the glass in two panels.


Handle Options

Lever handles operate the hook bolt locking system on traffic doors and provide external key access whilst intermediate panel shoot bolt locking is operated by internal fold-flat handles as shown. Handles are available in white, chrome, or black finishes but can be supplied to any RAL colour at extra cost. Please note that the style of traffic door handles will differ when RAL colour handles are specified. ‘D’ handles (black or chrome only) are fitted to the hinges of the intermediate panels to allow easy opening and closing of the bifold doors.



Low Threshold Option

The Visofold 1000 aluminium bifolding doors feature strong, durable profiles and a choice of low or weathered thresholds. The non-weathered low threshold provides the opportunity to create flush floor levels between two living spaces by sinking the threshold into the floor and merging two areas into one. This is particularly useful for room dividers or for doors installed between the main house and conservatory where they are often left open most of the time.


Our range of aluminium bi-fold doors is fully compliant with Doc L of the Building Regulations (Conservation of Fuel and Power).


Allstyle aluminium bi-folding doors are manufactured with a polyamide thermal break, creating a barrier between both the internal and external aluminium sections and reducing heat loss.


Where ordered with glazing, our bi-folding doors can be supplied with double or triple glazed units with a centre pane U-value of 1.2W/m2K and an overall U-value of 1.8W/m2K.


Used commercially in a bar, café, or restaurant, they can create a glazed screen that allows in the maximum ingress of light in inclement weather, and will also easily glide to open up an entire wall in warmer weather. A choice of opening configurations to suit any application. Choose to fold the sashes internally or externally, place the opening at the side so the sashes all fold one way, at one end, to create a single entrance door for easy access, or in the middle to give the option of a double door.



High-Security Locking System – Our folding sliding doors are fitted with the latest high-security locking. On styles supplied with a traffic door, lever handles operate a high-security hook bolt locking system and a profile key cylinder allowing access from both inside and outside. Bi-fold doors supplied without a traffic door do not have external access and can only be opened from the inside by operating the shoot bolt locking system.


Traffic Door Option – Many styles can be specified with a traffic door that provides a normal day-to-day door leaf, allowing easy access to the garden without opening the whole bi-folding door up – either like a conventional door or French door.

Aluminium bi-folding doors have grown in popularity over the past decade and have become a fundamental feature when designing new-build homes, extensions, or renovation projects. There are many reasons for this rise in demand – they are versatile, save space, increase natural light, and bring your outside inside with a flush floor level. A folding and sliding door enables you to open up to 90% of a wall, transforming any space.


They are a very effective alternative to the traditional aluminium French door or even an aluminium sliding patio door, both typically offering a much lower opening at approximately 40%.



  • Ultra-slim sight lines of just 132mm
  • Aluminium Profiles provide security and slim sight lines
  • Low Threshold Option
  • Polyamide Thermal Break for superior insulation
  • High-Performance Weatherseals
  • Internally glazed for high security
  • 28mm Clear Toughened STAYCOOL Double Glazing 1.1 U-value
  • Optional integral blinds are available
  • Solar Control Glass 57% Heat Reflection 35% Glare Reduction
  • Traffic doors on some styles enable ease of use in the winter
  • Available in many different RAL colours with dual colour option
  • High security locking on traffic doors and intermediate door sashes
  • Doors can be specified to fold inwards or outwards and slide left or right

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