Visofold 1000 Aluminium Bifold Doors 

Aluminium folding doors with exceptionally slim sight lines of just 132mm!  

Slimline bifolding doorFD2U aluminium bifold doors are manufactured from slim 60mm thermally broken profiles to ensure maximum glass widths can be acheived using the minimum number of panels.  There are no additional mullions required between the panels that broaden the sight lines so when panels are folding sliding in the same direction the width of the aluminium from edge of glass to edge of glass is just 132mm.

There is a choice of weathered or low thresholds and with standard solar control double glazing and options such as our exclusive concealed trickle vent facility our Visofold 1000 aluminium bifolding doors have become our best-selling folding door.


grey 6 panel visofold 1000 bifolding doors

Luxury aluminium folding doors

Our range of aluminium folding doors are manufactured from dedicated profiles designed by one of the UK's leading architectural aluminium system suppliers Smart Systems.  Smarts Visofold series of bifolding doors have been available in the UK and Europe for a number of years offering both domestic and commercial folding door applications.

Aluminium doors are particularly renown for their ease of operation and reliability in service and our doors also benefit from a dual roller system at the bottom with the panel tops also guided by rollers for smooth running and easy operation. There are no heavy-weight lintels required as the doors are bottom rolling and not hung from the top.

Individual door panels can be up to 1 metre wide to provide wide glass apertures using minimum aluminium profiles which allows natural light to flood into the room.

As you can see here when fully opened the panels fold and slide to stack neatly together and the remaining hinged panel will be retained by the magnetic chrome catch shown at the bottom of the door.


Fully Integrated Trickle Ventilation

integral trickle ventilationMost bifold door installations will require trickle vents to meet building regulation requirements. Our unique and exclusive frame extender is designed to provide integrated trickle ventilation to your new aluminium folding door so the slim sight lines are not spoilt by ugly face fixed trickle vents.  Fitted to the top of the door frame the profile conceals the trickle vents from view and also provides a weather bar feature to enhance weather protection at the top of the door.concealed trickle vents in frame extender



Made to measure and standard sizes

In addition to a full made to measure service we now offer a range of standard size special offer aluminium bifold doors designed to save you up to 10%. Ideal for new build openings where you can construct the aperture to suit a standard size door you choose handle finish and door style as these doors are still made specifically to your order.

Bring the outside inside!

Add the WOW factor to your home and seamlessly merge your patio and garden with your new living space to create a visually stunning addition to your home. Here are just a few examples from customers showing completed installations of their aluminium bifold doors.

grey aluminium bifold doors grey Visofold 1000 folding doors
black bifold doors with blinds black Visofold folding doors
white bifold doors in kitchen extension Internal view of kitchen extension
grey aluminium windows and folding doors grey folding doors
anthracite grey aluminium bifolding door aluminium folding doors as seen on Ch4
brown Visofold 1000 bifold doors brown aluminium door in conservatory


As featured on Channel 4 TV's 'Double your house for half the money'  

We supplied and installed this anthracite grey 3 panel aluminium bifold door for a recent edition of this popular home improvement program presented by Sara Beeny.  The door was installed into a basement in a terraced property in Clapham, South London to create extra living space and provide the main source of natural light into the room. Read more...


Low Threshold Option

low thresholdThe Visofold 1000 series features 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 merging the two floor 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. This image shows an aluminium bifold door with a low threshold fitted between tiled floors from a kitchen into a conservatory. 

Download full technical details including sight lines and threshold options.

Choose from over 200 Colours

Visofold 1000 folding sliding doors are manufactured from thermally broken aluminium profiles that are available in over 200 RAL powder paint finishes and can also be supplied with a dual paint colour finish so you can select an external colour and an internal colour.  In addition we also offer a range of textured paint finishes called Sensations. More information on both paint finishes


Matching Roof Lanterns and Windowsblack aluminium roof lantern

We also supply roof lanterns to match your new bifold doors in a choice of traditional or slim-line aluminium profiles together with a full range of bespoke aluminium windows, patio doors and french doors.




Conservatory Bifold Doors

Aluminium folding doors are ideal for use as conservatory doors and are often requested by customers who feel aluminium provides a stronger durable door especially when wider openings are required. When fitted in conjunction with a steel portal frame doors up to 6 metres or wider can be fitted to open-up the complete front of a conservatory or as shown here two bifold doors can open up the corner of the structure with stunning effect.

conservatory with aluminium bifold door internal view

conservatory folding doors

Visit our sister site TC2U for more information on our range of conservatories with sliding folding doors.

High Performance 1.1 U-value Double Glazing

Staycool logoAll our made to measure bifolding doors are supplied with STAYCOOL double glazed sealed units that not only provide an exceptionally energy efficient 1.1 U-value but also reflect 57% of direct heat from the sun whilst also reducing glare by 35% not only protecting you but also your furnishings.

bifold door instant quote  

High Security Locking

Our Visofold aluminium folding doors feature high security shoot bolt locking as standard and where available traffic doors are fitted with multi-point hook bolt locking to provide optimum security. The locking system, hinges and running gear are fully concealed when the door is closed ensuring that there is no opportunity for an intruder to gain access by tampering with the door gearing, hinges and fixings.

Handle Options

traffic door handleshoot bolt handleLever/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 handle 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.



New roller hingeAll hinge fixings are concealed when the door is closed with only the knuckle of the hinge visible ensuring the hinges cannot be tampered with from the outside.  Roller hinges feature 4 stainless steel rollers running on dual tracks and are fitted to top and bottom of sliding panels for smooth and effortless operation.  The rollers are fully enclosed in a metal casing for good looks and to help keep them clean.  Hinges are supplied in black finish only.

Open In or Out

Your new bi-fold door can be specified to stack inwards or outwards at no additional cost to suit your specific requirements and since every door is made to order you can be sure of a perfect fit.

Summary of Benefits

  • Ultra slim sight lines of just 132mm
  • Aluminium Profiles provide and securityslim 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
  • 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
  • Optional integral blinds available

Delivery Lead Times

White Finish: 15 - 20 Working Days
Single RAL Colour: 20-25 Working Days
Dual RAL Colour: 30-40 Working Days
Integral Blinds: 25 - 30 Working Days

The above lead times are provided for guidance purposes only for supply only doors and are from receipt of deposit and confirmed manufacturing details.


grey aluminium french and folding doorsAluminium bifold doors are suitable for DIY installation or in many cases are often installed by builders constructing a new home extension. We can also provide a full installation service in many parts of mainland UK using experienced installers to fit your door and ensure it operates correctly from day one.  To check if this service is available in your area simply request an instant quote and ensure you select the fitting service option.

Full range of Aluminium window and doors available

To complement our range of aluminium bifold doors we also provide the full range of Smart Systems Aluminium products including Visoline and Visoglide triple track patio doors, Alitherm aluminium windows, entrance and french doors in any RAL paint finish.

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