SUNFLEX - BIFOLD DOORS & WINDOWS

Sunflex- Heritage bi-fold doors, SLIDING DooRS & Windows - for expansive garden views that will take your breath away

Aluminium heritage doors

Our exclusive range of heritage doors with narrow mid-rails provides a traditional style for almost any project or property type.

Manufactured from the highest quality thermally broken aluminium to meet the requirements of Building Regulations Document L, our heritage doors match the industrial appearance of traditional Crittall™ style steel doors with the contemporary thermal and weather performance standards.

Available as French doors, bifold doors, sliding doors, single doors and windows, the steel look style is a fast growing trend in glazing design. The slim frames of the SUNFLEX UK range of systems allow for the addition of narrow mid-rails whilst still giving you the maximum amount of glass.

Every SUNFLEX UK heritage door is custom made to order, ensuring the quality and performance you have grown to expect of a SUNFLEX UK system.

  • You have a wide choice of systems - Our heritage doors are available in bifold, sliding or standard door configurations to accommodate the requirements of most projects.
  • They are Building Regulations compliant - Our heritage doors match aesthetic appeal with thermally broken, Building Regulations Part L compliant aluminium construction.  
  • Quality as standard - Our heritage, Crittall™ style doors include a range of accreditations and independent testing as standard including BSI Kitemark™ quality assurance.
  • Modern security - Our heritage doors all benefit from multi-point security and locking mechanisms that conform with PAS 24:2016 and Secured by Design™ standards.
  • Traditional appearance matched with modern performance
  • A range of configurations, including open sliders & pocket sliding doors.  
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The SUNFLEX bi-fold Doors & windows

 Georgian Bar Windows & Doors are Back
If you have been searching for bi-folding doors and windows with Georgian Bar then you will love our Heritage Collection. They are currently enjoying another round of popularity giving you a completely different style to chose from. Transform your Bi-folding ,sliding or French Doors with our Heritage Bar 

  • More Info

    • Ultra-slim aluminium frames
    • Reassuringly low U-values
    • Secure and robust
    • Impressive sightlines
    • A vast choice of beautiful colours and textures available
    • 20-year manufacturer's guarantee

    Our bi-fold doors come fitted with a unique 8-point locking system, finger-safe door gaskets and bespoke hardware components. The product is certified and highly rated for its resistance to even the most severe weather. 


    Aluminium Doors & Windows

    For more than 20 years, SUNFLEX UK has been providing contemporary, high quality aluminium windows. The extensive range of aluminium windows includes made-to-measure options for almost any type of project, from new build to renovation, or replacements for existing units.


    Our SUNFLEX UK windows are available as top-hung, side-hung casement, tilt-and-turn, folding, fixed frame, gable end glazing, clerestory windows, over-lights, and frameless glass-on-glass corners.


    The SUNFLEX UK aluminium window profile consists of a modern contemporary design with square edge profiles to match our aluminium bi-fold and sliding doors. Available in double or triple glazed systems, the windows achieve very impressive thermal performance.


    Visit our showroom Mon - Fri (9 am - 5 pm), Saturday (12pm – 4pm) and Sundays by appointment. You will be able to see our fully functioning bi-folding doors available in all RAL colours. Conveniently close to Glasgow, Edinburgh, Dundee, Stirling, Kilmarnock and others.

Our Sunflex Doors in a nutshell

Heritage French Doors
With narrow, thermally broken aluminium frames, our heritage doors are ideally suited to replace traditional steel doors as single or French doors for external or internal purposes. They can be combined with sidelight windows alongside the doors for larger openings.

Heritage Sliding Doors
Utilising our advanced SVG30 or SVG83 sliding door technology, our heritage sliding doors are ideal for large openings because of their ability to incorporate glass panels up to 2000mm wide.
The system can be configured in many ways, including sliding into a pocket or including a moveable corner post to create a completely open corner.

Heritage Bifold Doors
Our heritage bifold doors make use of the outstanding performance, incredibly narrow frame depths and slim sightlines of the SUNFLEX SF55i bifold door.
Our heritage bifold doors combine the sought after appearance of traditional steel doors, with the ability to concertina the panels completely to one end to create an unobstructed opening.

Aluminium Front & Back Doors
The stunning SUNFLEX UK range of aluminium front doors provide the perfect first impression of your home.
Choose from 32 designs and a great range of handles, hardware and colour finishes to completely customise your doors, with the option to add fixed-frame windows to create the grandest of entrances.
Every SUNFLEX UK entrance door meets the strict standards of quality and security that we demand of our products. Featuring a multi-point locking system, SUNFLEX UK high-security front doors offer top protection against intrusion.

Heritage Door Colours
Our heritage doors are available in a choice of our three most popular colours as standard. Alternatively, you can choose from one of more than 200 RAL colours for your doors to suit the style of your home and to match internal and external décor.

Anthracite Grey (RAL 7016) matt finish
Slate Grey (RAL 7015) matt finish
Slate Grey (RAL 7015) matt finish
Graphite Black (RAL 9011) matt finish
Graphite Black (RAL 9011) matt finish

More than 200 RAL colours available, including woodgrain finishes and dual colour options

    • "I wanted to thank and congratulate Dalziel Home Design ltd for the wonderful service that I recently received.
    I found myself in difficulty with a building project and thanks to the intervention of Jimmy and Chris I was able rescue the build by the delivery of 2 sets of bifold doors at short notice. I am completely satisfied by the high quality of the product and would not hesitate to use Dalziel Home Design in the future."
    from George, Yell.com

    Open up your home to the natural world outside. View our aluminium bi-fold doors at Dalziel Home Design in Motherwell.

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