We are your local Supplier and Installer for your new set of Bi-folding doors in Bristol, Bath, Gloucestershire, Somerset, Wiltshire and surrounding areas.

Our Aluminium Bi fold doors have all the strength a Bi-fold provides, with ultra-slim style sashes. Slimline Bi-folds allow you to enjoy an unobstructed view of the outside whilst creating an almost seamless transition between the indoors and outdoors. Creating a light, welcoming space with more natural light, our secure aluminium doors are strong, reliable, and tailored to your requirements.

We provide double glazed bifold doors supply and fit. Choose us as your bifold doors Bristol supplier, and you will not be disappointed.



U-values as low as 1.2W/m2K
28mm double glazing as standard
Double hinge fixing for reliable long-term performance
Multipoint locking and high-security shootbolts
Parallel stainless-steel tracks for ease of operation and stability
Quad stainless-steel rollers with wiper brushes spread load and resist debris build-up
Robust corner cleat system for strong precise corners
Weather performance to BS6375-1

Bi-Fold Door Dimensions

Up to seven sashes
Sashes – min 650mm, max 1200mm (W).
Max height 2500mm
Maximum weight of 120kg
Overall width max 6500mm

Bi-Fold Door Warranty

10-year mechanical performance guarantee
25-year surface paint finish guarantee
Lifetime security guarantee on hardware


Looking for a door that simply folds out of the way? Want to create a home where the boundary between in and out can provide the freedom to create a space for entertaining, relaxing, and spending time with your friends and family? This is why you need a Bi-fold Door! But, not all Bi fold doors are built the same……….

Surely Quality is essential? Stellar aluminium Bi-fold doors’ strength and engineering are ideal for coping with the weight and forces. The slim sashes pack a real visual punch, and because there is ‘Thermal Break’ technology built throughout the system, this Bi-folding door insulates your home, ensuring It’s comfortable all year round.

The layout of your Stellar Bi-folding door is configurable. They are designed to span wide apertures, either in the inward or outward opening, with the option of either even or odd numbers of sashes. Its track systems are reliable and robust, and security is built into the design. Once installed, you will notice the smooth slide & running operation and functionality of your new doors.

Our Stellar Bi-folding doors are available in a variety of stock colours, Our Stock colours are Jet Black flat matt (RAL9005), Anthracite Grey flat matt (RAL7016) and Signal White flat matt (RAL900).

We can supply in any RAL colour for an extra, although this does incur extra fabricating time and expense.

In summary, our Stellar Bi-fold doors are supplied with a 10-year mechanical performance guarantee, a 25-year surface paint finish guarantee, and a Lifetime security guarantee on hardware.

Aluminium is the most durable, long-standing and resistant material of those used in enclosures. Aluminium has the strength and durability of things that last a whole lifetime.

No matter what your requirements are, our Stellar Bi-folding doors will be able to meet them.


Bifold doors are made up of two panels that fold outwards and slide on a track.  They can be used as the main entrance door or as a room divider, and they come in many shapes, sizes and colours. Bifold doors are available in both swing and sliding types.

The bifold door is made up of two panels that move together to open like a book. When closed, the panels stack on top of each other in an attractive fashion similar to an accordion fold. Modern double glazed bifold doors are the most popular glazing option right now.


Bifolding doors can be used in any space where you need extra light and ventilation.

Bifold doors have many advantages over other types of doors, especially when it comes to energy efficiency. They can be used in places where there is no room for double-hung windows or other similar types of glass panes.


Bifold doors are a great way to make the most of your space. They can be fitted on either the inside or outside of your property, depending on the design you choose. The only thing you need to decide is whether you want to buy them ready-made, or whether you’d prefer to have them custom-made.

It’s definitely worth hiring professionals to supply and fit them for you. This will ensure that they fit perfectly into your doorway and that they look good when they’re finished. 

Contact BS15doors to arrange an appointment and discuss our service options.


5 Star Customer Rating

We pride ourselves on our customer reviews, check us out on Google, Facebook and more


All our products come with a 10 year warranty as standard


Whether it's our windows, doors or lantern roofs, we offer a minimum rating of A for energy efficiency


BS15doors have been supplying and installing windows & doors for over 25 years across Bristol


Well what can I say about BS15doors.

Well, what can I say about BS15doors? Absolutely 100% would recommend these guys. From ringing them up I had someone come out to my house the next day to measure up who was very friendly and made me feel confident in my decision to go ahead with getting my doors supplied and fitted with this company.

Kelly Palmer

Really really happy with my new front door.

Really really happy with my new front door. Communication with Ruth along the way was very easy and she always replied promptly, and the fitters did a perfect job! The price was the cheapest I got too. Definitely recommend them.

Susie Howells

Smooth communication from initial consultation to final installation.

Smooth communication from initial consultation to final installation. Professional service, reasonable price, definitely recommend. We had our front door, three windows replaced by BS15doors, definitely coming back for the rest of windows, thank you!

Han Lynn

Would definitely recommend BS15doors.

Would definitely recommend BS15doors. The service was great, the product is great and the price was very competitive.

Mike Norman

Top service from start to finish.

Top service from start to finish. From measuring up to supply speed and fitting. Ruth and John both excellent throughout. Cheapest quote by a long way in my local area and quickest turnaround to get them fit too. Will definitely use again on my next renovation project.


Definitely worth getting a quote from them.

The guys who fitted did an excellent job, showing me issues that had been identified earlier and how they have dealt with them. Windows have now been in place for quite a few months now and we have had no issues with them through any of the storms we have recently had.

Colin Gimblett

Fantastic service from start to finish.

They listened to what I needed, made suggestions and generally supported and kept me informed throughout. They turned up when they said the would with a quick efficient team who were in and out in less than 3 hours. New front door, overhead canopy and two windows! Great price too. We had quotes from other firms. But they lacked the customer service and personal touch that BS15doors gave.

A Peters

Great experience from initial enquiry to installation!

Ruth and John delivered a personal and instructive service and the door looks great. The chaps who installed it were friendly, professional and neat and tidy also and to top it all they offer competitive prices and good customer service too. Would recommend.

Elspeth de Boeck


Contact us for a free no obligation quotation


    Email* Tel* Requirements*