A complete guide to Aluco steel-look bifolds

Giving you all the benefits and functionality of a folding sliding system, Aluco steel-look bifolds are outstanding in their design, quality, features and styling. Having a bifold door in your home, especially one in the desirable steel-inspired styling, enhances a property, not only with a bifold door that looks unlike any other but also one that gives you door features you can only have with a bifold. Here is everything you need to know about Aluco Aluco steel-look bifolds.

Aluco steel-look bifold doors – an introduction

Aluco steel-look bifolds in black in a luxury kitchen
Aluco steel-look bifolds deliver a unique bifold door experience.

Highly engineered, crafted with precision and with an incredible overall appearance, Aluco steel-look bifolds start with premium-quality aluminium profiles. These then come with a built-in polyamide thermal break designed to insulate the frame and door profiles, working in harmony with insulated glass units. For the exterior colour finish, every Aluco bifold is professionally coated only by professional colour applicators, having the required certification, accreditation, and meeting strict production and quality standards.

A key product in our overall Exterior Collection of windows, patio doors and screens, Aluco steel-look bifolds work in dwellings or light-commercial property, giving you features and benefits you can only get with a bifold. Here is why:

four Benefits you only get with a bifold door

You may be trying to decide which type of door, French doors, bifold doors, or even a sliding door, would be best for your property project. Here are four features and benefits you can only get when you choose a bifold door. And in the iconic style of an Aluco, these features get even better.

Bifold doors open up your entire opening.

No other door opens up your entire available opening like a bifold. French doors are hinged and only come in double door sets, not up to 8 or more panels like a bifold. Sliding doors take up half or two-thirds of an available opening because the sliding panels always need somewhere to rest. Therefore, if getting the maximum available opening is essential in your design, you can only do this with a bifold. And Aluco steel-look bifolds do this effortlessly, whilst giving you the industrial, steel-look, or heritage style.

Use your Aluco steel-look bifolds like a regular door.

The British weather doesn’t allow us to connect our room to our garden with open patio doors as often as we would like. So if you new bifold doors are your main garden access doors, you need them to be functional every day of the year.

Only when you choose a bifold do you get the option to configure these with a traffic door. Just like your side or back doors, the traffic door enables easy entry and exit without having to fold all the panels back every time. This is much more convenient than sliding a partially open patio door. Even better, the traffic door is fantastic for regular garden access, taking out the washing, going to the shed, letting out a pet, or even for ventilation like a window. It is another benefit you can only get with a bifold.

Matching your bifold to other doors in your home.

Does your property have more than one garden access or patio door set? Perhaps you have a ground-floor study, a rear utility room, a dining room or doors going to your conservatory. We can craft you Aluco steel-look bifolds as single doors or double doors, an alternative to our standard single and double door range. Made with exactly the same profiles as the bifold, these doors give you 100% matching doors – the profiles. The hardware is all exactly the same throughout. It is yet another benefit of choosing a bifold door where you want your other doors to look exactly the same.

Enter your home from your bifold doors.

Bifold doors, like French doors, come with external key access, which is very hard to get with a sliding door. So if you regularly use your patio doors like a front door, then a bifold is much more convenient. Added with the traffic door we mentioned earlier, Aluco steel-look bifolds are great for getting into your home from your garden.

Why Aluco steel-look bifolds are different from other bifold doors

Aluco bifold doors in a contemporary lounge fully open green hedges

You want to buy steel-look bifolds to get a style similar to classic metal doors or heritage glazing. Most of the bifold doors on the market marketed as ‘steel-look’ are otherwise standard doors with nothing but applied bars on the glass. Aluco steel-look bifolds feature a heritage-designed sash giving the beautiful stepped appearance of our French doors and period glazing. Other bifolds use their standard handles. We offer a choice of standard, modern or Art-Deco.

Don’t settle for standard bifolds with applied glazing bars. Aluco steel-look bifolds are more authentic in styling because they’re designed with dedicated steel-look profiles. They are not standard bifolds with only bars applied on the glass to create the grid-like pattern of this style.

Aluco bifolds – the slimmest

Correctly designed steel-look bifolds should be slim. And ours is one of the slimmest on the market with just 94mm door mullions, with the door panels in the closed position.

This exceptionally slim sightline is significant in reducing the visible aluminium of Aluco steel-look bifolds. At the same time, you benefit from larger glass sizes, more light coming into your room and better views out to your patio area, garden or whatever views you enjoy from your rooms.

When choosing new folding sliding doors in this style, choosing a slimmer bifold is essential to getting a better and more authentic-looking door.

aluco steel-look bifolds showing tape measure and profile dimension.
At just 94mm, no other steel-look bifold is as slim.


When it comes to choosing the best glass for your new bifold doors, you have several choices. First is the standard product comprising toughened safety glass, having a soft-coat low-emissivity coating, warm edge spacer bars and argon gas fill. These 28mm glass units can also be upgraded to laminated glass, creating an extra barrier to glass security. And if you need sun control, help with noise reduction or have any special requirements, our doors are entirely flexible in the glass choices available, with options for glass for south elevations and acoustic glass, creating a quieter room.

Colour options for your new bifold doors

Aluco steel-look bifolds in a three-panel design, cream colour

Whether you choose your new Aluco bifold doors fully glazed or with our hand-cut and applied heritage glazing bars, black is undoubtedly the most popular colour. With over 150 RAL colours available, including metallic colours, textured surfaces and anodised finishes, we can create virtually any colour you like.

Authentic, beautiful, functional and dependable Aluco steel-look bifolds

Every product in the Aluco Exterior and Interior Collection is designed and built specifically for each individual customer, handcrafted by our skilled craftsmen to your exact specification. Our ethos is one of exceptional design and product performance, created to complement your home and lifestyle. Above all our Aluco steel-look bifolds promise a spectacular end result, with bifold doors that look and feel like no other.

Contact us for more information and where to view Aluco bifold doors or our entire collection of bespoke windows and doors.

Examples of aluco products installed

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Industrial style Barn Doors – Cirencester

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Steel look windows in Gloucestershire

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Industrial style French doors in Wiltshire

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Buying Guides

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National Coverage

Aluco Aluminium products are installed and supported by a national network of installers.

15:14 22 Mar 23
Just completed house renovation, using all the internal bespoke doors with glass panels. Absolutely delighted with the quality of doors and service. I was assisted every step of the way in getting the right size and format of extremely tall door. Keiran has been exceptionally helpful to deal with over the months from ordering to completion. 10/10I never usually do reviews but but I would say the whole experience and end result that has been achieved has been amazing.
Sarah PattersonSarah Patterson
15:28 13 Mar 23
So pleased with our new Aluco bifold doors, the best we could find on the market! We wanted bifolds with maximum glass area and no bulky frame and the Aluco doors were the perfect choice. Stunning, deep matte black colour, high quality, great choice of hardware and a first-class service. Highly recommend!
Michael HanksMichael Hanks
12:56 10 Mar 23
I've been looking for sometime to find a professional company to fit my new windows and doors and I'm so pleased I found you guys! - Aluco's products are 1st class and so easy to arrange, I just called Aluco, spoke to a very helpful lady who put me in touch with my local installer. I would definitely recommend this product & company :o)
Pauls Mc CrarrenPauls Mc Crarren
10:15 10 Jan 23
I recently had 3 sets of ALUCO exterior crital styled steel framed doors fitted to my property as part of an ongoing renovation. After looking around at various options Aluco was the only manufacturer that I felt could deliver the style I was looking for. With most other companies I thought the design was bulky and not finished to the finesse Aluco has achieved . Based on my experience I can honestly thoroughly recommend this manufacturer and will look to use them again on any future projects
Richard HansonRichard Hanson
09:42 20 May 22
Aluco is leading the way in steel look windows and doors, they are high quality, competitively priced and offering excellent external and internal ranges. We are extremely happy to supply their products to our valued customers.