High quality Bi-Folding Doors


Bi−Folding Doors can complement any home, and will give you a whole new feel as you will open up panoramic views and bring the warmth and light of the outside indoors.


Just in time for christmas. Colney Windows and Doors are able to offer 10% OFF all home improvement quotes. From Windows and Doors to full porches and roof lanterns we are able to supply and fit before the big day. This amazing 10% OFF offer also applies to quotes which have been received in the past 6 months. Get in touch now to book your free visit from the Colney Windows and Doors team.


High quality bi-folding doors

Bi−Folding Doors can complement any home, and will give you a whole new feel as you will open up panoramic views and bring the warmth and light of the outside indoors. Increasingly popular, Bi−Folding Doors can be chosen to match the style of your home and provide a smooth transition between your rooms, or between indoor and outdoor spaces.


More and more Colney Windows and Doors customers are choosing Bi−Folding Doors, adding space, light and elegance to their surroundings, adding that special touch to their homes.



You can choose from PVC−U, Aluminium or traditional wood, and they are an attractive alternative to French Doors or Patio Doors. They are available in a wide range of colours and finishes. Bi−Folding Doors remain slim in profile and relatively unobtrusive owing to the strength of the modern materials used.





Colney Windows and Doors Bi Fold Doors feature the latest in high performance and high security multi point locking systems. Our unique Yale 8 point locking system on our Bi Folding Doors conform to demanding, police preferred ‘Secured by Design’ standards.


Chamfered 20mm linear bolts offer smoother operating and maximum compression for increased weather resistance and deep throw 25mm security hooks for the maximum contact possible.




Nothing is more important than safety and comfort in your home and above all, the safety of your most precious little people.


With this in mind, the Bi Fold Doors system come with a bespoke ‘finger safe’ gasket between each door leaf, which ensures that even when they are fully open and folded to their maximum extent, there is no gap for little fingers to get trapped in.



Our Bi Fold Doors will keep you warm in the cold winter months and cool in the hot summer months.


With a Certified U Value of about 1.6 W/(m2K)* on our Bi Fold Doors we surpass the British Building Regulations by an industry leading 27%. This gives you more design flexibility on bigger projects, keeps your energy bills low.




Bi Fold Doors need to slide smoothly this is an area which indicates how good the Bi Folding Doors are that you buy. Our Bi Fold Doors are designed to give the very best sliding motion and to do this the bottom of each door section has its own long wheelbase solid aluminium carriage with four wheels that run inside a low threshold base track.



Our Bi Fold Doors sweep away the boundaries between the inside and the outside of your home. Bi Folding Doors offer timeless aesthetics, superior engineering and premium quality to ensure that the beauty and relaxation they add to your home will be an integral part for many years to come.


Low threshold designs on our Bi Fold Doors allow for equal floor finishes inside and out. There are two options available; weathered and non weathered.


grey modern  bi-folding doors

Bi-folding door configurations

Bi-folding doors are a more recent innovation in the PVC-U industry but are proving a popular choice in many styles of home.

A wide range of door configurations which are also available in aluminium can be accommodated with our flexible system, all of which can open in or out.

The integral aluminium running track allows you to specify a low fitting threshold if necessary. With planned survey and installation, this avoids the need for a step on either side and further increases the feeling that your indoor and outdoor space is one.

Bi-folding door moving layout and plan

Latest Bi-Folding Door Projects


red and black Plumpton composite door

Modern Grey 2 Pane Bi-Folding Door

January 2017


Our next Customers from Stevenage wanted to upgrade the entrance to their garden with a Colney Windows and Doors, grey modern Bi−Folding Door...

oak garden doors harrow london

Solid oak bi-folding doors

June 2016


Colney Windows helping a client create a seamless high quality opening to the garden...

tight budget sliding secondary units

UPVC Windows and Bi-folding doors bring restoration to life

May 2016


Colney helped our customer with a restoration project to bring this property back to life...


UPVC Bi-folding doors fitted between now and christmas recieved an extra 20% off


Bi-Folding Doors Gallery

Please see below a collection of Bi-Folding Doors. Click on any image to enlarge.

Brochure download


Explore UPVC bi-folding doors future inside our brochure. The brochure showcases bi-folding door configurations. You can also explore other upvc door options


Download PDF Brochure

upvc bi-folding doors product brochure

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