Heritage doors

Traditional style with modern performance

More than 20 years of manufacturing specialist door systems

Superior designs made bespoke to all requirements

Sunflex-trained and supported installers located nationwide

Art Deco-inspired aluminium heritage doors

Our exclusive range of Art Deco-inspired 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 forged steel doors with the contemporary thermal and weather performance standards.

Available as single doors, French doors, bifold doors, sliding doors and windows, the steel look style is one of the fastest growing trends in glazing design. The slender frames of the SUNFLEX UK range of systems allow for the addition of narrow mid-rails whilst still maximising the amount of glass.

Every SUNFLEX UK heritage door is custom made to order in our own factory, ensuring the quality and performance you would expect of a SUNFLEX UK system.

Secured by Design PAS 24 Made in Britain
  • The widest choice of systems Our heritage doors are available in bifold, sliding or standard door configurations to accommodate the requirements of almost any project.
  • Building Regulations compliant Our heritage doors match aesthetic appeal with thermally broken, Building Regulations Part L compliant aluminium construction.
  • Modern security All of our heritage doors 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 systems giving you complete choice
  • A range of configurations, including pocket sliding doors and open corners

  • Heritage French Doors

    With narrow, thermally broken aluminium frames, our heritage doors are ideally suited to replacing traditional steel doors as single or French doors for either internal or external purposes.

    They can be combined with sidelight windows alongside the doors for larger openings. Ideal for replacing steel doors and windows whilst maintaining the same aesthetic design.

  • 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 a wide range of ways, including sliding into a pocket or incorporating a moveable corner post to create a completely open corner.

  • Heritage Bifold Doors

    Based on more than 35 years of folding door experience, 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 much sought after appearance of the traditional steel doors, with the ability to stack the panels completely to one end to create an unobstructed opening.

French Doors
Sliding Doors
Bifold Doors
Configuration Single or French door Sliding doors Bifold Doors
Sightlines 59mm 83mm 115mm
Combine with sidelight windows Yes Yes Yes
U-Value Double Glazed From 1.4 W/m²k† From 1.2 W/m²k† From 1.1 W/m²k†
Maximum panel width Up to 950mm Up to 2000mm Up to 1200mm
Maximum panel height Up to 2200mm Up to 2400mm Up to 3500mm
Secured by Design™ No Yes Yes
Water tightness To 300Pa (Class 7a)* To 300Pa (Class 7a)* To 900Pa (Class 9a)*
Air permeability To 600Pa (Class 4)* To 600Pa (Class 3)* To 600Pa (Class 3)*

* Water tightness and air permeability test performance is dependent upon a number of factors including system configuration and panel sizes.

† Thermal performance is dependent on glass specification.

Why choose a SUNFLEX UK heritage door?

With the widest range of systems, configurations and designs on the market, the SUNFLEX UK selection of heritage doors can be configured to meet the requirements of almost any project, from the renovation of a traditional property to the most stunning of contemporary new build homes.

There is even the option of pairing the door system with matching windows, all designed with the same frame depths to ensure a consistent appearance.


Colour options

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.

Heritage doors - Standard colours

  •  Anthracite Grey (RAL 7016) matt finish Anthracite Grey (RAL 7016) matt finish
  • Charcoal Grey Metallic (DB703) textured finish Charcoal Grey Metallic (DB703) textured finish
  • Jet Black (RAL 9005) matt finish Jet Black (RAL 9005) matt finish

Heritage doors - Popular bespoke colours

  • Slate Grey (RAL 7015) matt finish Slate Grey (RAL 7015) matt finish
  • Grey Aluminium (RAL 9007) semi-gloss finish Grey Aluminium (RAL 9007) semi-gloss finish
  • Traffic White (RAL 9016) matt finish Traffic White (RAL 9016) matt finish
  • Graphite Black (RAL 9011) matt finish Graphite Black (RAL 9011) matt finish
  • Sage Green (RAL 6021) matt finish Sage Green (RAL 6021) matt finish
  • Pearl Mouse Grey (RAL 7048) matt finish Pearl Mouse Grey (RAL 7048) matt finish

Become an accredited distributor

If you are in the glazing trade join our distributor programme today and you’ll receive discounts on select showroom models, the choice of over 40 products for your inventory, and training and technical support directly from SUNFLEX UK.

Find your local distributor