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Bi-Fold Doors

We offer a comprehensive range of bi-folding doors with a choice of thermally broken aluminium or Timberlook PVCu that are perfect for use in a conservatory and are also available as individual door orders.


Aluminium bifold sliding folding doors

 aluminium bifold doors in Livin room conservatory with Cornice fitted

We can supply a complete range of Visofold 1000 aluminium bifold doors for your new conservatory.  These thermally broken aluminium folding sliding doors are a popular choice due to their slim sight-lines and durable finish.  The Visofold Bifold door offers traffic door options on most styles and provide high security locking featuring hook bolt and shoot bolt locking.  Doors have rollers top and bottom for smooth and effortless operation whilst hinges and gearing are fully concealed when the door is closed for high security.

These superb aluminium folding doors have proved a popular choice for many of our customers as they are a perfect fit for upvc conservatories.

Available in White gloss as standard our aluminium bi-folding doors can also be supplied in a choice of over 200 RAL paint finishes. Download the RAL colour chart here.


Timberlook PVCu Bifold Folding Sliding Doors

Our Timberlook PVCu folding door has been designed to provide very slim sight lines when compared to most PVCu Bifold doors.  Using 60mm wide Ovolo PVCu profiles the glass to glass sight line for panels running in the same direction is just 132mm which is considerably less than most doors currently on the market.  Doors run on maintenance free stainless steel rollers that are concealed inside a colour matched aluminium frame head and threshold which ensures that the doors cannot be removed from the track when the door is closed.  High security hook bolt locking is provided to traffic doors with shoot bolt locking to intermediate panels which are also fitted with security hinges with fixings that are only accessible when the door is open.

white pvcu folding door conservatory bifold door internal view
4 Panel Bifold All panel stack out to right Internal view

Timberlook pvcu bifolding doors are available in standard white finish or any of our extended colour range of wood grain finishes.

The demand for these sliding folding doors is growing rapidly as homeowners see the advantages of opening up the front of their conservatory or house to take advantage of our warmer climate and provide unobstructed access to the garden and patio.


Adding a bifold door to your new conservatory

gable bifoldThe introduction of folding sliding doors into the UK conservatory market has provided the opportunity to replace the traditional french door with a bifolding door that provides a much wider opening than traditional french doors allowing the home and garden to become one seamless area.

super duty eaves beamTo ensure structural stability of a conservatory where bi folding doors are fitted Ultraframe offer a 'Super Duty' eaves beam that is capable of providing adequate support for the roof and avoiding the need for a costly steel goalpost portal frame previously required. The width of the folding sliding door can often be up to four metres but will be determined by the span, projection and style of the conservatory and also the required position of the door. We will be happy to provide advice and more information on receipt of your specific enquiry.

For a quote for a DIY conservatory with a folding sliding door submit your requirements using our conservatory online quote form.


Internal bifold door

internal folding doorWhat better way to seperate your new or existing conservatory from your house than with one of our superb sliding folding doors. Supplied with a low threshold which can be buried in the floor to provide almost flush levels a bifold door provides the perfect solution as not only does the door comply with building regulations document L but it also allows the conservatory to become a permanent extension to your home with the bifold open. With the folding door closed the house is secure when unoccupied or when you simply want to seperate the conservatory from the rest of the house. For internal doors we can also offer a timber folding door option.

You can view and buy standard size bifold doors and roof lanterns in our new online shop by clicking below.

FD2U Online Shop


Adding a bifold door to a new extension

Folding sliding doors are proving a very popular choice for new extensions and we now offer a bespoke range of roof lanterns in matching colours and finishes if you want to increase the flow of natural light into your new living area.


Traffic Door Option

Some bifolding door styles provide a hinged traffic door allowing easy day to day access without opening up the complete door, especially useful during the colder months of the year. Some wider folding door designs can also have a double traffic door. Traffic doors are fitted with multi-point high security locking operated by conventional lever/lever handles and provide key cylinder locking accessed both internally and externally. View available styles of folding doors here.

Bifold doors supplied without a traffic door feature an internally activated shoot-bolt locking system which does not provide access from the outside.


Just slide and fold to open

internal conservatory view with bifold doorThese innovative sliding and folding doors are manufactured using moveable parts or elements that enable the door leaves to be easily folded back to the left or right and they can be specified to stack outside or inside. The door sashes of our aluminium bifold door are hinged to a mullion which is supported by a roller mechanism which slides along the cill profile whilst at the top the mullion is guided by another roller. For Timberlook PVCu folding doors a colour matched aluminium head and threshold conceals the top and bottom rollers ensuring the smooth secure operation of the doors. There are many possible configurations of door design available using this system. The direct fix outer frame allows the door to be fitted directly to brickwork or in the case of a conservatory, directly to the corner posts and dwarf walls.


Made to Measure

Our aluminium or upvc folding sliding doors are made to measure to suit your aperture and can be ordered in many different designs. These Bifolding doors can be specified with a low threshold when used internally, for instance between your house and conservatory. When used for external applications a weathered threshold will be supplied and you can specify with or without a projecting cill.


Bring the outside inside

black aluminium bifold door


Bi-fold doors can also of course be used to replace an existing patio door, French door or can be used for swimming pool enclosures or for wherever you would like to create a large opening onto a sun terrace. The doors are often specified in commercial applications such as restaurants, showrooms and hotels to allow unrestricted access. By specifying the low threshold option the doors can also be used as room dividers.




Benefits of Aluminium Folding Sliding Doors:

  • Aluminium Profiles for strength and securityaluminium folding door
  • Smart Systems Visofold 1000 Series
  • Polyamide Thermal Break for superior insulation
  • High Performance Weatherseals
  • Internally glazed for high security
  • 28mm Toughened Staycool Argon Filled Low E Double Glazing with 1.1 U-value
  • Solar control glass reflects 57% solar heat and reduces glare by 35%
  • Traffic door to some styles enables ease of use in the winter
  • Available in many different colours with dual colour option
  • High security locking on traffic doors and intermediate door stiles
  • Doors can be specified to fold inwards or outwards and slide left or right
  • Normally delivered fully assembled ready for installation
  • Optional integral blinds available

All our aluminium bi-folding doors supplied for external use comply with Building Regulations Doc L.
Aluminium doors are available to a maximum of 2.5m high and up to 6 metres wide in various configurations.


Colour Options

Our aluminium bifolding doors are available in any RAL paint colour and can also be specified in dual colours providing the opportunity for one colour inside and another outside.
Download a RAL Colour Chart here


Benefits of Timberlook PVCu Folding Sliding Doors

  • Slimmer sight lines than most upvc bifolding doorsslim sight lines
  • 28mm Staycool Argon Filled Low E Double Glazing with 1.1 U Value
  • Solar control glass to reflect solar heat and reduces glare
  • Flush track option
  • High performance weatherseals
  • 19 Colour options including green, black and cream
  • Concealed gearing and security hinges
  • High security locking
  • Optional integrated blinds available

Timberlook uPVC folding doors are fully compliant with document L of the building regulations.

Doors are available up to 4.7 metres wide and 2.2 metres high in many designs.


Integrated Blinds OptionScreenline Blinds

Our folding sliding doors are available with factory fitted integral blinds fitted inside the sealed units.
Available in a choice of colours these blinds are encapsulated within the double glazed units ensuring they remain clean and undamaged.

They are designed to ensure your privacy can be maintained in the closed position but can also be opened or fully raised whenever the mood suits you.



Supply only or supply and fit service

white bifolding door fitted in a gable endOur bifolding doors are supplied complete with fitting instructions and are easy to install for anyone with DIY skills or by your builder but we do understand that some customers may prefer to have the product professionally installed.

We can now offer a supply and fit service in many parts of mainland UK which includes survey, installation and a full ten year insurance backed guarantee.  To check that this service is available in your area request an online bifold door quote.

call now on 01621 834123

Specify a Bi-fold door for the front of you new conservatory and on a hot summer's day simply slide and fold the panels open to enjoy an unobstructed view of your garden and literally bring the ‘outside inside'. In the colder months you can still enjoy a superior view from the inside whilst protected from the weather by our high performance Staycool argon gas filled solar control double glazing.

FD2U logoVisit our dedicated folding door web site for full details of our complete range of bifold doors.


Aluminium Bifold Doors

Black Bifolding DoorSometimes referred to as concertina or multi-fold doors, our aluminium bifold sliding, folding doors are manufactured from durable thermally broken aluminium profiles which provide slim sightlines whilst still providing strength and security. These profiles consist of 2 aluminium extrusions that are connected by polyamide strips creating a thermal barrier ensuring that your valuable heat is not transmitted to the outside or the cold air is transmitted to the internal surface of the door.

You new Bi-folding door can be supplied in either white powder paint finish or alternatively in a range of other RAL colours and also silver or bronze anodised finish. They can be specified with or without a projecting cill and fitted with optional trickle ventilators.

You can view Bifold door close-up images and an extensive gallery of folding door installations on our sister site.



White doors are normally supplied within 21 working days from receipt of order. Other colours are subject to an additional 14 day lead time. Delivery is available to most of mainland UK.
Doors are normally delivered factory assembled ready for installation with the glass supplied seperately. However the size and configuration of some doors may require them to be supplied as an assembly pack due to transport restrictions.

You privacy is important to us and we will not contact you unless you ask us to.

Conservatory Online Quote