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UniFOLD HI Aluminium Bifold Doors

UniFOLD HI aluminium bifold doors are a contemporary bifold door system. Featuring 110mm glass to glass sightlines, they will help to maximise natural light intake and brighten up any property interior. For both residential and commercial applications, they are an excellent choice.

  • Modern square appearance
  • Pre-gasketed snap-in glazing bead
  • Multi-point locking
  • Colour matched hardware
  • Fully adjustable jamb option
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Product features

Design features

UniFOLD HI aluminium bifold doors are a fully customisable bifold door system. Available with double or triple glazing, they combine extremely high levels of thermal and security performance with a sleek contemporary aesthetic. Manufactured in-house to ensure consistence of quality, UniFOLD HI doors can be finished in any of over 200 RAL colours with either a single or dual colour selection and can be upgraded to achieve stringent PAS 24 security standards.

Product options

  • 80mm frame depth
  • 110mm sightlines
  • Maximum panel weight 120kg
  • Class 4 air permeability
  • Class E750 water tightness
  • Internal beading
  • Maximum panel size 1200mm x 3000mm
  • U-values as low as 0.8 W/m²K
  • Standard and low threshold options


Frame depth

Glazing thickness

Glazing method




Multi-point locking


Air permeability

Water tightness

Wind resistance

Threshold height (standard)

Threshold height (low)



25 - 48mm

Internally Beaded

Double or Triple

Single or Dual, All RAL Colours

From 0.8 W/m2K

Class 4

Class E750

Class C3





Contemporary aluminium bifolding door system

The UniFOLD HI aluminium bifold door system is a high performing and aesthetically attractive door choice suitable for a wide range of glazing projects. It has a maximum panel size of 1200mm x 3000mm to allow for extra large expanses of glazing. Internal beading is used to maximise security standards while impressive 110mm sightlines ensure minimal interruptions to the panoramic exterior views. If you’re a glazing installer who regularly works on contemporary property upgrade projects, the UniFOLD HI bifold door system is an excellent addition to your product portfolio.

aluminium bi fold doors open onto garden

Frequently Asked Questions

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What are your lead times?

Lead times can vary per product. For stock PVCu colours we work to a 10-15 working day schedule. For more up to date lead times on any specific product e-mail us at where we will be happy to help.

Are your products compliant with new building regulations?

Our Eurocell PVCu range of products are fully compatible with all new build regulations. Quantum Windows has a number of secured by design certifications to provide you with peace of mind and our quality systems in place are all aimed at producing a quality product first time, every time.

Currently, our range of Aluminium double glazed Aluk 58BW HI Windows, Aluk 58BD HI Residential doors, EdgeGLIDE+ Sliding door and Unifold HI all have a U-value of 1.4 or below and are compliant with new building regulations. Our range of compliant products is always growing, so please give us a call for the most up to date information.

Please note that you will need to specify on your enquiry if you need your product to meet the new building regulations.

Where do you deliver to?

We deliver weekly to the West Midlands, Derbyshire, Leicestershire, Warwickshire, Oxfordshire, Berkshire, Surrey, West Sussex, East Sussex, Kent, Greater London, Hertfordshire, Essex, Suffolk, Cambridgeshire, Bedfordshire, Buckinghamshire. Norfolk and of course Northamptonshire.

aspects white open bi fold doors

I have been buying windows and doors from Quantum Windows for over 25 years. I have always found the pricing very competitive and the quality has been very high. On the rare occasion a problem has arisen it has been dealt with swiftly and efficiently. The office staff are always polite, friendly and professional and we have built a strong relationship over the last 25 years. The drivers are excellent. I know them very well and they have adapted to my ways of working and are always willing to help and accommodated me.

Craig Gutteridge

“We have dealt with Quantum Windows for 13 plus years, we find the staff to be courteous and polite and any queries we may have are dealt with promptly and efficiently, nothing is too much trouble”

Jackie - Accounts Dept

W R Enterprise Glass & Glazing Ltd.

We have been buying from Quantum Windows for almost 30 years now, they offer a wide product range and the Team have excellent product knowledge which is invaluable in an ever-changing market.

All team members are friendly, helpful and efficient, orders are processed with care and quotations provided promptly. I would have no hesitation in recommending Quantum Windows.

Vicki Webb

Clearview 2000 LTD

‘We have used Quantum Windows for many years now, we have always found them to be very easy to work with, the staff are all very helpful and friendly, they are always available to offer any help should we need it, excellent product!’


Chapel Windows

Glevum and Quantum have enjoyed an excellent working relationship for a number of years, working together to provide a high quality, value for money product offering and service for the end user.

As well as delivering a high quality product, the knowledge and experience of the staff at Quantum is invaluable to a customer in a market where Building Regulations are constantly changing.

Mike Donaldson

Glevum Design & Build

As installers of both PVCu and Aluminium to the New Build market, the importance of on time delivery is totally time critical.
Over the last 20 years Quantum windows have worked closely with PGB to partner with us and deliver our offer to site.
Highly professional, and a pleasure to have worked with them so closely over the years.

Phil Martin CEO

Portico CB Ltd

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