Windows
French Doors
Patio Doors
Front Doors
Roller Shutters
Window Sills
Bifold doors are built on an innovative system of rails and hinges. This system saves space and lets you open the entire glass door. Bring more natural light into your living space and create a tasteful threshold between the interior of your home and your garden or conservatory. Choose between two materials – wood and aluminium wood composite – and design your new affordable made-to-measure bifold in our configurator.
Configure nowEnjoy maximum freedom: Bifold doors are the perfect way to create an open living environment.
Supplier for popular DIY shows
"Industry trailblazers"
"The No. 1 in online window retail"
"Affordable prices and high-quality products and services"
“windows24.com brought windows and doors with amazing quality to our project. The products are well-built and with top certified for passive house values.”
“We spent more than a year searching for a window manufacturer with high product quality and maximum design flexibility. At windows24.com we found the perfect solution for us.”
“Our architect recommended windows24.com to us. Their German-based window expert team was very helpful in finalizing details, organizing transport and training my onsite-builder.”
“windows24.com was great partner in constructing our hosue. With their help we reached highest quality in terms of design and isolation.”
Bifold doors are made of multiple glass elements framed in casements. These elements are connected by hinges, allowing for the bi-folding action which gives these doors their name.
You can slide bifold door leaves along the entire length of their sliding and guiding rail. You can fold the door elements in a fan-like fashion, either toward the inside or the outside.
We've summed up some other benefits of a bifold door compared to other external doors:
Opening the bifolding door leaves completely provides you with a comparatively expansive opening. At the same time, the bi-fold mechanism saves space as it packs the leaves tightly. No other type of external door can do that.
All bifold door glass elements have their own frame or casement. That's why they can cover large wall openings. Sliding doors with a single glass element aren't usable in such cases because of the physical forces at work here.
Thanks to the large transparent opening, bifold doors let plenty of natural light in, both when opened and closed. The latter option is especially significant as it saves money and creates a cosier atmosphere. That's why bifold doors shine, particularly on sunny days.
You can also make your rooms feel larger with help of the special way bifolding doors open – for example, opening a bi-fold patio door gives the impression that both the room and the patio or conservatory are one coherent living space.
Business spaces also benefit significantly from bifolding doors because they're great when used as room dividers. But don't mistake them for simple folding doors. That system's built in a concertina style design, without the same insulation measures that a bifold external door has on the top and bottom frame. Room divider doors should not be used as external doors.
We have various glazing options available for our bi-fold doors and patio doors. Pick the perfect one to fit your needs:
Insulated glass is great for optimising energy efficiency. If your home is close to a busy road or in a generally noisy neighbourhood, noise-dampening glass is a viable option. For greater anti-burglary protection, safety glass is the way to go. Add that certain something to your glazing with ornamental and structured glass. It creates stylish lighting effects and can look very captivating. They are available in various styles and designs to match any preference.
You can decide between two materials for the frame: wooden or composite wood aluminium bifold doors and patio doors. Although uPVC frames are very popular (due to their thermal insulation and low maintenance requirements), wood aluminium bifold doors are very popular, too. Combine them with individual glazing to add to your door's functionality. Windows and doors must be top-notch, because they're more than just a lockable entry point into your house that blocks wind and weather.
Aside from burglary protection, thermal efficiency is vital. It's an important topic, considering the increased focus on environmental protection legislature and the energy-efficient housing mandates passed by various governments.
Specialised glazing is a key factor for thermal efficiency, but you shouldn't forget about the frame either. Even industry-leading quality glass isn't enough if the frame has sub-par insulation values. So-called thermal bridges may form between materials with differing thermal conductivity, allowing the heat inside your home to diffuse through the material much more quickly. It's not just lost energy that strains the environment; thermal bridges also tend to create condensated moisture. This can cause unhealthy mould in your home.
Getting rid of mould is costly and difficult, especially if it has infested the walls. Therefore, every homeowner should focus carefully on thermally efficient insulation in all architectural elements: Frames, glass elements, and embrasures in the walls that connect windows and doors with the building.
Colouring bifold doors: Your preference dictates how your ideal bifolding doors should look. Paint the wooden frames in various colours or go with a classic, cost-effective white – similar to how most uPVC bifold doors are painted. Our aluminium bifold doors are powder-coated in your preferred shade from the RAL colour scale. Let your imagination run wild to create the perfect – glazed or non-glazed – bifold patio door for your home.
There are many different options when configuring your sliding bifold door at windows24.com. Whether it's maintenance, installation, coupling, or the perfect handles – you have everything at hand to design your ideal external bifold patio door.
The perfect mix of ingredients makes a delicious meal. That's also true when building a home. So, you should aim for the ideal balance of functionality and style. Handles play an essential role in that regard, and we have many of them for you to pick from. Classic or modern, various colours, functions, and security options – it's all up to you.
Aside from adding toughened glass, you can add to your home's burglary protection by adding special handles: Safely locking them via the press of a button or key locking cylinder is a good first step towards increased security. Burglary protection is incredibly important for all kinds of doors because they are often the weak points in a house's overall security, no matter if we're talking about patio doors, bi-fold patio doors, French doors, balcony glass doors, external and internal bifold doors, or sliding folding doors. Consider adding special multi-point locks and alert systems to your external doors.
Whether internal or external – bi-fold doors should always be installed by professionals. First and foremost, that ensures you have a one-year guarantee on new French doors, for example. Although the do-it-yourself approach has charm, especially with a ready-to-assemble door set, installing them requires quite a bit more skill if you want to ensure you're not creating thermal bridges. On top of that, installing the overhead guiding rail for a top-hung bi-fold door is quite the physical challenge – particularly with large doors.
Thermal insulation and proper functionality are also areas that require professional attention. Your bi-fold doors won't be sliding, opening, and closing as intended if you're just a few millimetres off. You also need technical expertise to prevent thermal bridges, which may result in the loss of valuable heat in the winter months.
If you decide to cut down labour costs and save money on properly installing your bifold doors, costs will increase in the long run. Installation errors always mean someone will have to repair your bifold doors, creating additional costs. Without that, these bi-fold doors won't function properly and create problems that any homeowner would want to steer clear of.
Installing bifold doors costs vary from region to region. That's why planning every detail of the installation process is important – whether it's design features like glazed elements, the intended functionality or the timing of the installation. You also need to make sure you won't need planning permission. If you're operating on a budget trying to install your patio door, you can actually save a lot of money by creating a plan first, as this means less money lost on costly repairs due to improper installation.
At windows24.com, there's plenty of information on bi-fold doors and many other areas regarding doors and windows. Read up on different materials like uPVC, the types of timber we use, or the average cost of window fittings. If you can't find an answer to your specific question, feel free to contact us for a free consultation with no obligation to buy. We can also help you get in touch with regional professionals to install your new wooden or wood aluminium bifold door.
No matter how low-maintenance bifold doors are, you always have to put in a little regular care. Watch the video tutorials on installation and maintenance on windows24.com to inform yourself on those topics. They were made in cooperation with professional window fitters to show you how to handle installing and maintaining patio doors, French doors, bifold doors, sliding doors, and windows.
Considering how much bifold doors cost compared to other types, it might not surprise you to learn that the complex mechanism makes them quite a bit more costly. Nonetheless, our wooden bi-folding doors are available starting at €2,366.91. Our wood aluminium bifold doors have a base price of €4,599.35. Door prices depend on more factors than material, though: your patio door's size, triple or double glazing, and the number of door leaves, for example. Aspects such as the type of timber used, the colour or how many and which kinds of bifold door fittings you choose have less of an impact on how much your new bifold doors will cost, but these aspects are still noteworthy.
Bifold French doors are perfect for large wall openings, incorporating external areas like your garden or patio into your inside living space. The size and number of your bifolding door leaves are deciding factors, though. You can design bifold patio doors with up to five-door leaves and an overall size of up to 4410 mm in the windows24.com configurator. It's up to you to have the whole system built with bifold hinges. One door leaf can alternatively be built as a pivot door, too.
Short answer: Yes, but it depends on your bifold patio door's size. After choosing the number of door leaves, you can decide on the opening type for the individual elements. Have them equipped with bifolding hinges or with standard turn hinges. It's up to you whether all folding elements are built to slide in one direction or partly to the right or left side.
Burglars look for weak points at the ground level. That's why security measures are especially important for bifolding French doors. Equip your folding door set with high-quality fittings, locks, and other safety measures like laminated glass. Handles with a press button or locking mechanisms are important, too. Explore all security measures via the comprehensive online configurator on windows24.com.
You can individually enter your internal or external bifold door measurements in our configurator to get a made-to-measure solution for your home. But you can't order a bifolding French door with different size door leaves. They must have the same size due to the special opening type.
Our bi-folding patio doors folding mechanism makes them easy to use. It also ensures high-performing thermal insulation and excellent resistance against force. Our system of combined guiding rails and hinges make for perfectly insulated bi-folding doors. Additionally, all door profiles come equipped with long-lasting and robust seals.
Here you will find answers to the most frequently asked questions about bifold doors.
Your question is not answered here? Then simply call us on +49 860 601 60. Our experts will be happy to answer your questions.
Or you can directly arrange a telephone appointment. Whether for a new building or a renovation, you will receive individual expert advice from us so that you can configure your desired product exactly according to your ideas.
