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Our sleek Visoline 1000 aluminium bifolding doors create a room with a view, providing slim sightlines and a huge glazed area. Slimmer frames allow for lots of natural light and panoramic views of the outdoors.
Our bifold doors can be configured to open in, open out, stack from the left or the right, open in the centre, end or in between. They are also designed to open as single or double doors.
You can change the feel of a room as you please with our bifolding sliding doors. Our Visofold bifolding doors have the ability to transform the home, providing total versatility and the flexibility to open up rooms.
These doors fold back to inches of opening providing a seamless entrance between rooms or to the outside. Our aluminium bifold doors create the appearance of bigger, brighter spaces.
Our bifold doors look stunning both inside and out, adding a wow factor to any home. What’s more, because we offer a wide variety of colour choices, including dual colours, we’re sure we can supply you with a bifold system to match any taste.
Provide your customers with better security with multi-point lock mechanisms on main opening sashes, shoot-bolt locking on floating mullions and advanced hardware.
Configurations include left to right and right to left with square edged profiles. All our bifold doors are fitted with a secure locking system with a domestic style ‘lift up’ handle for smooth access.
Other bifold door features include high quality EDPM rubber gaskets and weather brushes, which improve weatherproofing. More optional extras include head vents for background ventilation, low thresholds for easy accessibility and integral blinds.
The standard 28mm double glazed units offer fantastic performance. You can further enhance their capabilities by opting for 36mm triple glazed units.
Suitable for both residential and commercial applications, our aluminium bifold doors are available in a huge variety of configurations. Whether they are used as an alternative sliding door, as part of a conservatory or used within a commercial project, our aluminium bifolding doors are sure to make an impact.
Find a Sternfenster approved installer near you today.
All doors have the option of either low thresholds or unimpeded, easy access and rebated thresholds. The system can lower threshold heights by up to 25mm, giving a smoother transition between spaces for mobility impaired users.
If your home requires frequent wheelchair access and greater accessibility, look no further than Sternfenster! Find an installer near you today.
Unlike aluminium products of the past, our aluminium bifolds are very energy efficient. They are thermally broken, meaning there is lower heat transference through the unit. These bifold doors can keep you warm in the winter and cool in the summer when it counts!
Suitable for both residential and commercial applications, our trade aluminium bifold doors are available in a huge variety of configurations. Whether they are used as an alternative sliding door, as part of a conservatory or used within a commercial project, our aluminium bifolding doors are sure to make an impact.
All doors have the option of either low thresholds or unimpeded, easy access and rebated thresholds. The system can lower threshold heights by up to 25mm, giving a smoother transition between spaces for mobility impaired users.
Your customers can enjoy an easy outdoor access thanks to the Visofold’s ultra low-threshold.
Our aluminium folding doors feature a polyamide thermal break which enhances the thermal performance of the profile as well as improving the overall U-value. Expect an average U-value of 1.6 W/m²K.
Our standard RAL colours are readily stocked and available with quick turnarounds.
Enjoy interior and exterior customisation, as well as shorter delivery times with our stunning dual colour options.
Providing exceptional quality and individuality, our non stocked premium colour are available at an additional cost with extended lead times.
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Agate Grey
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Anthracite Grey
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Black
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Brown
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Fir Green
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Ivory
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Pebble Grey
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Purple Red
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Signal Grey
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Umbra Grey
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Violet Blue
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Agate Grey - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Anthracite Grey - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Black - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Brown - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Fir Green Matt - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Ivory - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Pebble Grey - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Purple Red Matt - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Signal Grey - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Umbra Grey -White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Violet Blue - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
White - Ivory
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Any RAL
To ensure that our aluminium bifold doors match the home perfectly, we offer a wide range of colourways, including more natural colours to help your new units blend with the rest of the home perfectly.
Glass Selected:
Clear
We offer a wide range of stained glass and bevelled glass designs to ensure that our doors offer a striking, impressive aesthetic.
Our comprehensive range of styles allows anybody to find the perfect choice for their property, with ease. To achieve the absolute pinnacle in double glazing why not choose our self-cleaning glazing?
Download our brochure to check out our full range of windows and doors. They’re packed with plenty of additional information, including technical information, detailed colour swatches and photos that can serve as inspiration for your home.
Our standard RAL colours are readily stocked and available with quick turnarounds.
Enjoy interior and exterior customisation, as well as shorter delivery times with our stunning dual colour options.
Providing exceptional quality and individuality, our non stocked premium colour are available at an additional cost with extended lead times.
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Agate Grey
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Anthracite Grey
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Black
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Brown
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Fir Green
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Ivory
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Pebble Grey
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Purple Red
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Signal Grey
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Umbra Grey
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Violet Blue
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Agate Grey - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Anthracite Grey - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Black - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Brown - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Fir Green Matt - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Ivory - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Pebble Grey - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Purple Red Matt - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Signal Grey - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Umbra Grey -White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Violet Blue - White
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
White - Ivory
*Colour configurations are for illustration purposes only. For detailed colours, contact us today.
Frame Colour Selected:
Any RAL
To ensure that our aluminium bifold doors match the home perfectly, we offer a wide range of colourways, including more natural colours to help your new units blend with the rest of the home perfectly.
Glass Selected:
Clear
We offer a wide range of stained glass and bevelled glass designs to ensure that our doors offer a striking, impressive aesthetic.
Our comprehensive range of styles allows anybody to find the perfect choice for their property, with ease. To achieve the absolute pinnacle in double glazing why not choose our self-cleaning glazing?
Download our brochure to check out our full range of windows and doors. They’re packed with plenty of additional information, including technical information, detailed colour swatches and photos that can be presented to your customers to help them decide on their next project.
Often nicknamed the ‘green metal’, aluminium occurs naturally in the ground, and requires a lot less energy to manufacture compared to materials like timber.
As aluminium is strong and durable, it can last up to 30 years and when proper care is applied can be recycled indefinitely, resulting in less waste for the environment.
Effortless operation is achieved through robust stainless steel rollers that glide smoothly. Magnetic door clips are available for securing open door sashes. High security locking mechanisms provide an outstanding level of protection through a number of features such as hook bolt locks, one piece keeps, and shootbolt locking on floating mullions.
These locks are fitted into an inherently strong aluminium profile to ensure the high standard of security is consistent across the whole door frame.
Traditional bead fitting methods are no longer the most financially viable option for installers. In the past, when fitting aluminium bifold doors, it was necessary to fit the gaskets separately to the bead.
QUICKglaze knock-in bead technology solves this problem. These glazing beads are manufactured with co-extruded gaskets and provide a secure fit and aesthetically pleasing finish.
Effortless operation is achieved through robust stainless steel rollers that glide smoothly. Magnetic door clips are available for securing open door sashes. High security locking mechanisms provide an outstanding level of protection through a number of features such as hook bolt locks, one piece keeps, and shootbolt locking on floating mullions.
These locks are fitted into an inherently strong aluminium profile to ensure the high standard of security is consistent across the whole door frame.
We’re offering our market leading bifold doors with a lead time of five days, or £100 off your next order! Contact our team today to find out more about our latest trade offers.
Bifolds are highly sought after in today’s housing market. They add an elegant yet modern appeal to any home and are a sure way to increase the overall value of any property.
Established in 1974, Sternfenster became one of the UK’s largest trade fabricators of uPVC and aluminium windows and doors. Currently run by Mike and Simon Parczuk, the original founders’ sons, we continue to deliver high-quality products nationally but with the values of a family-run business.
We are proud to have over 50 years of manufacturing at Sternfenster and are fully committed to UK homeowners and offering sustainable products and services wherever possible. Working closely within the trade and retail industry, we offer nationwide delivery across our comprehensive portfolio.
We offer competitive warranties, lead times as fast as five days and outstanding aftercare.
As of 2023, we’re offering our market leading bifold doors with a lead time of five days, or £100 off your next order! Contact our team today to find out more about our latest trade offers.
Benefits of choosing QUICKglaze knock-in bead technology include:
• A secure fit at every installation
• Deliveries available between 3 – 5 days
• Co-extruded gaskets included
• Shorter installation process
• No wedge gasket glazing seal needed
• Cost effective
• All parts included
Established in 1974, Sternfenster became one of the UK’s largest trade fabricators of uPVC and aluminium windows and doors. Currently run by Mike and Simon Parczuk, the original founders’ sons, we continue to deliver high-quality products nationally but with the values of a family-run business.
We are proud to have over 50 years of manufacturing at Sternfenster and are fully committed to UK homeowners and offering sustainable products and services wherever possible. Working closely within the trade and retail industry, we offer nationwide delivery across our comprehensive portfolio.
We offer competitive warranties, lead times as fast as five days and outstanding aftercare.
Our network of approved installers guarantees you the best service and the highest quality products.
Get in touch today with enquires for or any of our market leading products. Sell the best with Sternfenster.
Grow your business with an award winning manufacturer. We’ll support you with materials and expert guidance every step of the way.
Looking to outsource for any of your projects? Get started today. We will provide you with expert guidance for your trade success.