Emplas | The window and door fabricator of choice

Aluminium Bi-folding doors

Introducing the new, industry-leading Unifold HI bi-fold system. One of the most modern and innovative bi-fold doors on the market, combining both form and function

Manufacture and supply of Unifold bi-fold doors

One of the UK’s top aluminium systems, the Unifold bi-fold door is packed with features designed to maximise its retail appeal. 

We’re able to combine this with the ultimate in thermal performance achieving u-values of as low as 0.9W/m2 triple glazed and 1.4W/m2 double-glazed.

Why choose the Unifold Bi-folding Door

Standard Colour Options

The system is available in any RAL colour on an extended lead time of 45 days. Please note a RAL surcharge will apply.

Available in 3 standard colours - 20 day lead time


Anthracite Grey


Dual colours - 20 day lead time

Anthracite Grey on White

Black on White

Technical Specifications

Frame Depth80 mm
Glazing Thickness28-44 mm
Glazing MethodInternally Beaded
GlazingDouble or Triple
FinishesSingle or Dual. All RAL Colours
U-ValueFrom 0.9 W/m2K
Air PermeabilityClass 4
Water TightnessClass E750
Wind ResistanceClass C3
Enhanced Security
Multi-Point LockingYes
Threshold Height
Standard46.5 mm
Low28.5 mm

Special Colour Options

The system is available in any RAL colour on an extended lead time of 45 days, giving your customers the flexibility to pick out the perfect shade to compliment their property.

24/7 online ordering

Want to find out more about our energy efficient window and door ranges?

AluK door and window manufacture and supply

Emplas are bi-fold door suppliers & bifold doors manufacturers including the AluK F82 Luminia aluminium bi-folding door and the AluK BSC94 aluminium sliding patio door, plus a complete range of AluK aluminium windows.

Looking for a Lantern Roof supplier?

We’re a single source of supply for your glazed or flat roof extension with a range of bi-folding, sliding and French doors and windows.

Lantern Roofs

Become an Emplas Installer and gain access to all our great benefits plus get 15% off your first order*

Fill in your details and a member of our team we will be in touch 

*based on a minimum spend of £1500

Your Name*
This field is for validation purposes and should be left unchanged.