Aluminium Bifold Doors
Our aluminium bifold doors combine sleek style, innovative functionality, and lasting durabilityâperfect for modern homes in London. Designed to maximise natural light and enhance the flow between indoors and out, each set is crafted with meticulous attention to detail and tailored to your space. Whether you’re renovating, extending, or simply elevating your living area, we offer fully bespoke bifold door solutions that seamlessly connect your home to the garden, patio, or terrace.

10-year manufacturers warranty
10 year warranty on Workmanship
10 years warranty on Glazing
5-year warranty on ironmongery & seals

Corner Bifold Doors
Effortlessly modern, corner bifold doors offer a clean, architectural way to open two sides of your spaceâperfect for garden-facing extensions or homes with wraparound layouts.
Designed to sit seamlessly within contemporary or character properties, they create a light-filled, flexible living area with minimal visual interruption. Precision-engineered and tailored to each project, our corner bifolds combine understated design with exceptional performance, ideal for London homes that prioritise both form and function.
Bringing Timeless Elegance To Contemporary Living
01 ultra Slim Sightlines
Enjoy panoramic views with minimal framing. With sash sightlines of just 100mm, maximising glass and natural light, perfect for creating a seamless indoor-outdoor feel.
02 Multi-point Locking Mechanism
All independently opening traffic doors feature a high-security 5-point lock as standard, designed for enhanced protection and complete peace of mind.
03 Glazing Bars
Signature glazing barsâfeaturing 48mm horizontal transoms and 25mm vertical astragalsâadd subtle depth and timeless character, echoing the elegance of classic steel-framed doors with a refined, modern edge.
04 Polyamide Thermal Break
A discreet polyamide thermal break within the aluminium frame enhances energy efficiencyâminimising heat loss while maintaining a sleek, architectural finish. Designed to achieve a U-value of 1.5 W/m²K, making it a strong performer in all seasons.
05 sill options
Tailored to suit your space, our aluminium doors offer a range of sleek sill optionsâfrom flush thresholds to elevated profiles for added definition.
06 Powder-coated Aluminium
crafted using premium powder-coated aluminium from Smart Systems. This expert finish not only delivers a flawless look but also shields your doors from the elements, ensuring lasting beauty and durability.
Purchase Your Bifold Doors

Open up your home to let natural light flood in with our beautiful, made-to-measure bifold doors.
Sash Windows London have a reputation for excellence in window and door installation across London and offer premier products in the UK. Our expert team is there to help you every step of the way in choosing the best door style for your home.

What Are Bifold Doors?
Bifold doors are the name for what you may recognise as folding sliding doors. Also referred to as bifold patio doors or concertina doors, external bifold doors pretty much do what they say on the tin.
They are made from a series of panels that fold like a concertina and are a popular design choice in many homes for connecting an internal space to an external space. Bifold doors can have many panels and run across a track on the bottom of the door frame, sliding across using wheels.
They fold away out of sight for a discreet closure, providing an unparalleled method for creating wide-open vistas in the home.
Aluminium Bifold Doors
Aluminium bifold doors are a stylishly sleek folding door option that can look great in a modern or traditional home. Theyâre lightweight but just as durable as timber bifold doors. If youâre looking for a more discreet bifold door option to fit seamlessly into your home, aluminium bifold doors offer a slim profile and a very compact stacking formation which also works to minimise shadows cast by the frames. Aluminium bifold doors also offer more custom design options in contrast to timber bifold doors.
Our aluminium sliding doors are available in low or level threshold designs, which allows for equal floor finishes without compromising on weatherproofing. This also means that any risk of trips or falls is greatly minimised as the bottom of the bifold doors donât jut out at all. They’re fitted with reliable locking mechanisms to ensure peace of mind regarding the security of your home. All of our doors are fully weather-rated by British Standards and surpass British Building Regulations.
Get in touch to discuss our aluminium bifold door options.
What Are the Benefits of Bifold Doors?
01 natural light
External bifold doors provide the perfect solution for connecting or partitioning an outdoor area. The seamless transition from indoors to outdoors is an attractive feature for anyone looking to bring natural light and a sense of openness to what may be a quite enclosed home, or to continue an open-plan theme.
02 space-saving Design
The effortless close and unobtrusive stack of folding sliding doors allow for a beautiful space-saving solution, making a room feel vastly more open and light. Small rooms or small houses can really benefit from the increased visual space that an external bifold door offers. Internal bifold doors are also very in at the moment and are a fantastic option to add aesthetic value and functionality to a shower, for example.
03 Energy Efficiency
Not only do these doors have real aesthetic appeal, but they are also energy-efficient, completely secure and high in demand; a bifold door can really increase the value of a property and is entirely worth the investment.
Get a Free Survey For Bespoke Bifold Doors Today
Our brilliant bifold door styles can perfectly complement any building. With an experienced and insightful design and installation team, youâll get the best products and services for your home with Sash Windows London.
As a leading provider of a range of window and door solutions across London, we have an excellent knowledge of home improvements and deliver the best results. Donât hesitate to contact us for a fast, accurate quote on your new bifold door today, completely free of charge.
Or, if you are looking for more inspiration or would like to see some more of the bespoke products that we provide and install, then please take a look at our brochure. You can also follow us on Instagram for evidence of our beautiful work.
