The Timeless Elegance of Heritage Aluminium Bifold Doors
When it comes to enhancing the beauty and functionality of your living space, few design elements can match the allure of heritage bifold doors. Inspired by the iconic steel-framed glazing systems popularised during the early twentieth century, heritage bifold doors combine classic industrial styling with the performance and practicality of modern aluminium construction.
Also known as steel-look bifold doors, these elegant systems feature slim sightlines, heritage glazing bars and large areas of glass that create a striking focal point in both traditional and contemporary homes. Whether installed as part of a rear extension, kitchen renovation, garden room or self-build project, heritage bifold doors create a seamless connection between indoor and outdoor spaces while maximising natural light.
Designed For Steel-Look Style With Modern Aluminium Performance
At Colin's Sash Windows, we specialise in bespoke aluminium heritage bifold doors manufactured using the Smart Systems Visofold 1000 platform. After supplying steel-look aluminium doors for many years, we recognised that many homeowners love the appearance of traditional external & internal steel doors but not the price tag that comes with them. Our heritage bifold doors have been carefully selected to replicate the elegant appearance of steel-framed glazing while benefiting from modern thermal performance, advanced security and low-maintenance aluminium construction.
We offer both supply only and supply & fit heritage bifold doors, with nationwide delivery available across mainland UK. Every door is manufactured to your exact requirements, allowing you to create a truly bespoke steel-look bifold door solution for your home.
Smart Systems Visofold 1000 Platform
Steel-Look Heritage Appearance
Bespoke Made To Measure Doors
Supply Only & Supply and Fit
122mmSightlines
1.4W/m²KU-Values From
1200mmMax Sash Width
2500mmMax Sash Height
24-38mmGlazing
UK WideDelivery
Key Features
Why Choose Our Heritage Bifold Doors?
Our heritage bifold doors combine authentic steel-look aesthetics with modern engineering and performance.
01
Slim 122mm sightlines
02
Thermally broken aluminium construction
03
U-values from 1.4W/m²K
04
Bespoke made-to-measure manufacturing
05
Supply only and supply & fit options
06
PAS24 security hardware available
07
Dual colour options
08
Wide range of RAL colours
09
Heritage sash and astragal bar options
Whether you are renovating a period property, extending your home or building from scratch, our heritage bifold doors offer the perfect balance between traditional appearance and modern performance.
Choose from our standard Visofold 1000 Heritage Bifold Doors or upgrade to the Heritage Sash option for an even more authentic steel-look appearance.
Visofold 1000 Heritage Bifold Doors
Our most popular option is the Visofold 1000 Heritage Bifold Door. Manufactured using one of the UK's most widely specified aluminium bifold door systems, it combines slim sightlines, excellent thermal performance and smooth operation with the distinctive appearance of heritage glazing.
The addition of 25mm astragal bars helps create the sought-after steel-look appearance while maintaining large glazed areas that maximise natural light and views.
Each sash can be manufactured up to 1200mm wide and 2500mm high, making the system suitable for everything from compact kitchen extensions through to large open-plan living spaces.
25mm Astragal Bars122mm SightlinesBest Value Option
For homeowners seeking an even more authentic steel-look appearance, we also offer the Heritage Sash option.
Developed specifically for heritage applications, this specialist sash profile creates stronger visual definition and more traditional proportions, making it ideal for period homes, industrial-inspired extensions and architectural renovation projects.
The Heritage Sash option complements steel-look windows, steel look aluminium doors and internal glazing systems, helping create a consistent heritage appearance throughout the property.
Our Heritage Bifold Door Conversion Service has been developed for homeowners who want to achieve the steel-look appearance of heritage bifold doors without replacing perfectly good aluminium frames.
By replacing the existing sealed units and incorporating internal spacer bars together with external 25mm astragal bars, we can transform the appearance of many existing bifold door systems.
This can provide a significantly more cost-effective solution compared to a complete door replacement while still achieving an authentic heritage appearance.
Our heritage bifold doors are manufactured using the Smart Systems Visofold 1000 system, one of the most recognised aluminium bifold door platforms in the UK.
The latest generation Visofold 1000 has been upgraded to deliver improved thermal performance while retaining the slim sightlines and elegant appearance that homeowners and architects value.
Thermally BrokenAluminium construction
30mmPolyamide thermal break
122mmTypical sightlines
Technical Specifications
Key Visofold 1000 specifications for heritage bifold door projects.
Specification
Detail
Material
Thermally Broken Aluminium
Thermal Break
30mm Polyamide
U-Value
From 1.4W/m²K
Maximum Sash Width
1200mm
Maximum Sash Height
2500mm
Glazing Thickness
24mm - 38mm
Frame Depth
70mm - 82mm
Typical Sightlines
122mm
Dual Colour
Yes
Document L Compliant
Yes
Kitemark
Yes
The Visofold 1000 system offers the strength of aluminium combined with slim sightlines and large glazed areas, allowing homeowners to enjoy expansive views and increased natural light without compromising performance.
Modern homeowners expect more than attractive doors. Energy efficiency has become increasingly important, and the latest Visofold 1000 system has been developed with this in mind.
The system incorporates a wider 30mm polyamide thermal break, helping reduce heat transfer through the frame and contributing towards U-values from 1.4W/m²K when specified with suitable glazing.
Combined with high-performance double glazing, this helps improve comfort throughout the year while reducing heat loss and supporting modern building regulation requirements.
The colour of your heritage bifold doors plays a significant role in the overall appearance of your home. Whether you are creating a traditional steel-look aesthetic, complementing existing windows and doors, or making a bold architectural statement, we offer a wide range of finishes to suit your project.
Standard Colours
Our most popular heritage bifold door colours include:
White Gloss
Anthracite Grey (RAL 7016)
Black (RAL 9005)
White remains a timeless choice for traditional properties, while Anthracite Grey continues to be one of the UK's most popular aluminium door colours. Black is often selected by homeowners looking to achieve the closest possible appearance to traditional steel-framed glazing systems.
Bespoke RAL Colours
In addition to our standard finishes, heritage bifold doors can be supplied in almost any RAL colour.
Popular choices include:
Heritage Green
Cream
Agate Grey
Bronze Finishes
Contemporary Grey Tones
This flexibility allows you to coordinate your bifold doors with existing windows, roof lanterns, entrance doors and other architectural features.
Dual Colour Heritage Bifold Doors
Our dual colour option allows the internal and external faces of the aluminium frames to be finished in different colours.
For example, many homeowners choose Anthracite Grey externally while keeping White internally to maintain a brighter interior. This provides greater design flexibility and allows the doors to complement both the interior and exterior of the property.
The finer details can make a significant difference to the overall appearance and usability of a heritage bifold door.
Our doors are available with a selection of carefully chosen hardware options designed to complement both traditional and contemporary properties.
Lever Handles
Elegant and practical, lever handles offer comfortable everyday operation and are available in a range of finishes to complement your chosen frame colour.
D Handles
D handles remain one of the most popular options for heritage bifold doors. Their clean appearance and robust design work particularly well with steel-look and industrial-inspired glazing systems.
Heavy Duty Shoot Bolt Handles
The latest Visofold 1000 enhancements include upgraded shoot bolt handles which provide smooth operation while maintaining a clean and uncluttered appearance.
Magnetic Door Retention System
A practical feature often overlooked by homeowners is the improved magnetic retention system.
These magnetic catches help hold the door leaves securely in position when opened, reducing movement during windy conditions and helping prevent the panels from striking each other.
This small but effective feature contributes to smoother operation and long-term durability.
Each configuration can be manufactured with a range of opening arrangements, traffic doors and threshold options to suit the specific requirements of your project.
We believe in providing clear and transparent pricing wherever possible. The guide prices below are for our supply only Heritage Bifold Doors manufactured using the Smart Systems Visofold 1000 platform and include VAT.
Please note that final prices may vary depending on the exact size, glazing specification, colour, hardware options and any upgrades selected.
The final cost of a heritage bifold door can vary depending on:
Overall dimensions
Heritage Sash upgrades
Colour and dual colour options
Glazing specification
Hardware selection
Threshold options
Supply only or supply & fit requirements
For an accurate quotation based on your exact requirements, please contact our team with your opening sizes and preferred configuration.
Looking For A More Affordable Option?
Upgrade Existing Aluminium Bifold Doors
If you already have aluminium bifold doors installed, our Heritage Bifold Door Conversion Service may provide a cost-effective alternative to a full replacement.
By replacing the sealed glass units and incorporating heritage spacer bars and 25mm astragal bars, we can often achieve the steel-look appearance of heritage bifold doors while retaining your existing frames.
One of the most unique services we offer is our Heritage Bifold Door Conversion Service.
Many homeowners already have aluminium bifold doors installed but want to achieve the appearance of heritage steel-look glazing without replacing the entire door system.
In many cases, the existing aluminium frames remain in excellent condition and can be retained.
Instead of replacing the whole door set, we can manufacture new sealed units with spacer bars positioned between the panes of glass and combine them with external 25mm astragal bars.
This creates a far more authentic heritage appearance than simply applying decorative bars to the glass surface.
Benefits of Our Conversion Service
Lower cost than full replacementLess disruptionRetain existing aluminium framesAuthentic steel-look appearanceImproved visual characterModern double glazing performance
For many homeowners, this provides a practical and cost-effective way to upgrade existing bifold doors and achieve the heritage appearance they have always wanted.
Heritage bifold doors are aluminium bifold doors designed to replicate the appearance of traditional steel-framed glazing systems. They typically feature slim sightlines, astragal bars and steel-look styling while benefiting from modern thermal performance and security.
What is the difference between standard Visofold 1000 and the Heritage Sash option?
The Heritage Sash option has been specifically developed to create a more authentic steel-look appearance. It features enhanced heritage styling and stronger visual definition, making it particularly suitable for period properties and industrial-inspired designs.
Are heritage bifold doors energy efficient?
Yes. Our heritage bifold doors are manufactured using thermally broken aluminium profiles with a 30mm polyamide thermal break and can achieve U-values from 1.4W/m²K when specified with suitable glazing.
What colours are available?
We offer White Gloss, Anthracite Grey (RAL 7016), Black (RAL 9005) and a wide range of bespoke RAL colours. Dual colour options are also available.
What glazing options are available?
Our heritage bifold doors can accommodate glazing thicknesses from 24mm to 38mm, allowing a variety of double glazed specifications to suit different performance requirements.
Are heritage bifold doors secure?
Yes. Available security features include multi-point locking systems, PAS24 approved hardware, upgraded shoot bolt handles, enhanced gearboxes and toughened safety glazing.
Can I order heritage bifold doors on a supply only basis?
Yes. We offer nationwide supply only delivery throughout mainland UK for homeowners, builders, developers and trade customers.
Do you offer installation?
Yes. We provide both supply only and supply & fit heritage bifold doors depending on your location and project requirements.
Can existing aluminium bifold doors be upgraded to a heritage style?
In many cases, yes. Our Heritage Bifold Door Conversion Service allows suitable existing aluminium bifold doors to be upgraded with replacement sealed units and heritage astragal bar systems.
How much do heritage bifold doors cost?
The cost depends on factors such as size, configuration, glazing specification, colour, hardware and installation requirements. Contact our team for a bespoke quotation tailored to your project.
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White Gloss
Anthracite Grey (RAL 7016)
Black (RAL 9005)
