If you are asking how much are bifold doors going to cost this year, the price depends mostly on the material, how many panels you need and what work the opening requires. Bifolds fold back like a concertina to open up a whole wall to the garden, and they are a favourite for kitchen and dining extensions. Here are realistic 2026 ranges and the extras that move the number.
For a supplied and fitted bifold door in 2026, most homeowners spend somewhere in these broad ranges:
Those cover the door, frame and fitting for a common opening. They are a guide, not a quote, because size, glazing, colour and groundwork all change the figure. For a price based on your actual opening, request a free quote and we will measure up.
Most bifolds we fit are aluminium, and there is a good reason. Aluminium is strong but slim, so you get narrow sightlines and more glass, which is the whole point of opening up a wall. It does not rot, needs little upkeep and takes a huge range of colours. uPVC is cheaper but has chunkier frames and suits smaller openings better. Timber looks lovely but costs more and needs maintenance.
Our aluminium sliding and bifold doors page runs through the styles and finishes if you want to see the range.
Two bifolds of the same width can differ by thousands. Here is where the money goes:
More panels means more hardware, more hinges and a wider, heavier set, so a five or six-panel bifold costs more than a three-panel one. The way the doors are configured also matters, for example whether one panel acts as a day-to-day access door so you are not folding the whole lot back every time.
Aluminium costs more than uPVC but performs better in wide openings. Upgraded glazing, such as solar-control or extra-toughened glass, adds cost, as do coloured or dual-colour frames.
A wider or taller opening needs bigger, heavier doors and a stronger structure above, which pushes both the door price and the building work up.
This is the part that catches people out. The bifold itself is only half the job. To fit one you usually need:
On a straightforward swap where a set of patio doors already exists, groundwork is minimal. On a knock-through into a solid wall, the building work can cost as much as the doors, sometimes more. It is worth getting the whole job priced together so there are no surprises.
Fitting a bifold is a skilled job. The frame has to be dead level and square or the doors will not fold and seal smoothly. As a rough guide, professional fitting for a standard bifold often adds somewhere around 500 to 1,200 pounds, though a difficult opening pushes it higher. Many installers, including us, give a single supplied-and-fitted price so you see the full cost up front.
Bifolds are brilliant when you want to open up almost the entire wall and connect inside and out. If you mostly want the view and only occasionally step through, a sliding door can give you bigger unbroken panes of glass for the money and take up less room when open, since nothing folds into the space. Neither is better, they just suit different habits. We are happy to talk through which fits how you actually live.
For a typical three-panel set supplied and fitted, expect roughly 3,000 to 6,000 pounds in uPVC and roughly 4,000 to 9,000 pounds in aluminium. Size, glazing and groundwork change the figure, so get a quote.
Not always. The door price often excludes structural work such as a new steel beam, threshold and making good. If you are knocking through, ask for the whole job to be priced together.
It depends on the width and how you want to open the doors. Three and four-panel sets are the most common. A useful tip is to have one panel as a traffic door for everyday access.
Aluminium is stronger and slimmer, so it suits wide openings and gives more glass, but it costs more. uPVC is cheaper with chunkier frames and works well in smaller openings.
Replacing existing doors is usually fine, but knocking through an external wall involves building regulations, and larger changes or work in conservation areas may need permission. Check the current rules with your local authority before you start.
Want to see the full range of styles, colours and configurations? Download our latest brochure, or request a free quote and we will pop out for a look.