Bifold doors are sold and priced per linear metre – the total width of the opening they cover. In Scotland in 2026, expect to pay from around £700 per metre for uPVC and from £900 per metre for aluminium, both fully fitted. This guide breaks down what that actually means for real Scottish projects, what pushes the bifold doors cost per metre up or down, and what typical homeowners pay end-to-end.
Bifold doors have become the standard choice for opening up the back of a Scottish home to the garden – kitchen extensions, dining rooms, sunrooms, and family rooms. Because they are sold by the metre rather than as a single fixed unit, the total cost scales with how wide you want to go. Understanding the per-metre rate helps you budget accurately before you even start getting quotes.
What does “per metre” actually mean for bifold doors?
Bifold doors are supplied as a series of connected panels that fold and stack together. The “per metre” price refers to the total linear width of the door system – so a 3-metre bifold door might have 3 panels, a 4-metre door might have 4 panels, and so on. Each panel is typically 600 to 1,100mm wide.
Pricing per metre is the fairest way to compare bifold options, because a wider opening genuinely costs more (more glass, more frame, more panels, more hardware). A per-door price alone would be misleading because a 2-panel bifold and a 6-panel bifold are very different jobs.
Bifold door prices per metre in Scotland (2026)
Rough guide prices per linear metre, fully supplied and fitted by an established Scottish installer:
| Bifold door type | Per metre (fully fitted) | Typical panel width |
|---|---|---|
| uPVC bifold | £700 – £1,100 | 600 – 900mm |
| Standard aluminium bifold | £900 – £1,400 | 800 – 1,000mm |
| Premium aluminium (slim sightlines) | £1,300 – £1,800 | 900 – 1,100mm |
| Aluminium with triple glazing | £1,400 – £2,000 | 900 – 1,100mm |
Prices include the frames, glass units, standard hardware, threshold, professional installation and removal of any existing door or window. VAT is charged at the reduced residential rate of 5 per cent where applicable.
Real-world cost examples for Scottish homes
3-metre uPVC bifold, standard kitchen extension
A 3-panel uPVC bifold door opening onto a standard rear garden, replacing an existing patio door or French door setup, typically comes in around £2,100 to £3,300 fully fitted. This is the most affordable way to get a proper wide-opening door system on a Scottish home.
4-metre aluminium bifold, Bearsden extension
A 4-panel aluminium bifold in anthracite grey, fitted to a modern rear extension in Bearsden or Newton Mearns, typically runs £3,600 to £5,600 fully fitted. Upgrade to a premium slim-sightline aluminium system with better hardware and you are looking at £5,200 to £7,200.
5-metre aluminium bifold, Stirling family room
A 5-panel aluminium bifold opening a Stirling family room onto the garden typically costs £4,500 to £7,000 fully fitted in a standard aluminium system, or £6,500 to £9,000 in premium aluminium with triple glazing.
6-metre aluminium bifold, garden-facing extension
A 6-panel aluminium bifold covering a full 6-metre garden opening, common on new build and larger extension projects, typically comes in at £5,400 to £8,400 for standard aluminium, or £7,800 to £10,800 for premium systems.
What’s included in the per-metre price?
A proper Scottish bifold door quote should include everything you need for the door to work on day one:
- All door panels with A-rated double glazing (or better)
- Frame, threshold and tracks
- Standard hardware – handles, locks, hinges, running gear
- Multi-point locking system on the master door
- Professional survey and measurement
- Installation by trained fitters
- Removal and disposal of the existing door or window
- Standard trim and finish around the frame
- Manufacturer’s product warranty and installer’s fitting guarantee
Extra costs to factor in
Some items are commonly quoted separately or added after the survey:
- Structural work. Widening an existing opening for a bifold door usually requires a steel lintel. Depending on span and load, budget £600 to £1,500 for the steel plus fitting.
- Threshold options. A standard aluminium threshold is included. A flush low-profile threshold (level with your inside floor) is an upgrade of £200 to £400.
- Coloured frames. Anthracite grey, black, or dual colour finishes typically add 10 to 20 per cent versus standard white.
- Glass upgrades. Toughened safety glass is standard. Laminated security glass, acoustic glass, or self-cleaning glass are optional upgrades of 10 to 25 per cent.
- Integrated blinds. Blinds sealed between the glass panes cost £200 to £400 per panel.
- Scaffolding. Rarely needed for ground-floor bifolds. If required, allow £300 to £700.
- Building warrant fees. If a warrant is needed (new opening or structural change), council fees typically add £200 to £600.
How to reduce the cost of your bifold door
Legitimate ways to bring the per-metre cost down without compromising on quality:
- Choose uPVC over aluminium. The thermal performance of well-specified uPVC bifold doors is comparable to standard aluminium. You give up the slim sightlines but save 20 to 40 per cent.
- Stick with standard hardware. Premium handle finishes, hidden hinges and soft-close mechanisms are lovely but add cost.
- Stay with white or standard colour. Foil finishes add 10 to 20 per cent per metre.
- Standard A-rated double glazing. Triple glazing is a real upgrade but the payback for bifold doors (which are usually opened to the garden, not sealed shut all year) is longer than for windows.
- Fewer, wider panels. Three wide panels are cheaper per metre than five narrow ones – the frames and hardware are the expensive parts.
- Replace like-for-like rather than widening. Fitting a bifold in an existing patio-door opening avoids structural work.
uPVC vs aluminium bifold – which offers better value?
For most Scottish homes, the honest answer depends on what you value:
uPVC bifold makes sense if: budget is the priority, the opening is under 4 metres, and you are happy with slightly chunkier frame profiles. Well-specified uPVC bifolds perform thermally very close to standard aluminium and cost 20 to 40 per cent less per metre.
Aluminium bifold makes sense if: you want slim sightlines and maximum glass, the opening is 4 metres or wider, you have a contemporary or extension-focused project, and long-term durability matters (aluminium bifold systems typically last 40 to 50 years versus 20 to 25 for uPVC).
For 5-metre-plus openings, aluminium is almost always the right choice – uPVC frames become too heavy to operate smoothly at that width.
Getting a bifold door quote in Scotland
Most reputable Scottish bifold installers offer a free, no-obligation home survey. The surveyor should measure the opening, discuss configurations and threshold options, check whether structural work is needed, and give you a written quote that itemises the per-metre price plus any extras.
Watch out for quotes that skip the survey stage – proper measurement matters more for bifold doors than for standard windows, because a small measurement error affects the operation of the entire system.
NuView provides free surveys and written quotes across Glasgow, Stirling and central Scotland. Visit our Glasgow showroom or Stirling showroom to see uPVC and aluminium bifold styles in person – opening, closing, and comparing the hardware side by side. For more detail, see our bifold doors Glasgow page or compare against patio sliding doors if you are undecided.
Frequently asked questions
How much do bifold doors cost per metre in Scotland?
uPVC bifold doors in Scotland cost from around £700 to £1,100 per linear metre fully fitted. Aluminium bifold doors range from £900 to £1,800 per metre depending on specification. Premium aluminium with triple glazing can reach £2,000 per metre.
Are bifold doors cheaper than French doors?
No. Bifold doors are typically more expensive than French doors of the same width, because they involve more panels, more hardware, and more complex installation. French doors work well up to about 1.8 metres wide; above that, bifolds or sliding patio doors take over.
How wide can a bifold door go?
Standard aluminium bifold systems comfortably span up to 6 metres. Some premium systems go to 8 metres or wider. uPVC bifolds are usually limited to around 4 to 5 metres for smooth operation, because uPVC frames become too heavy at greater widths.
Do bifold doors need a building warrant in Scotland?
Replacing an existing door with a bifold of similar size is normally exempt from needing a building warrant. Enlarging the opening, creating a new opening, or altering structural load-bearing walls requires a warrant from your local council.
How long does bifold door installation take?
A straight like-for-like replacement of an existing door with a bifold is normally a one to two-day job for an experienced two-person team. If structural work is needed to widen the opening, allow three to five days total including drying time for any brickwork or lintel installation.
Are aluminium bifold doors worth the extra cost?
For openings of 4 metres or wider, aluminium is almost always worth it – the slim sightlines and durability at that width are real advantages. For openings under 4 metres, well-specified uPVC delivers similar thermal performance for 20 to 40 per cent less.
What’s included in a bifold door quote?
A proper quote should include the door panels, frame, threshold, standard hardware, multi-point locking, professional installation, removal of the old door, and standard finishing trim. Structural work, upgraded hardware, coloured frames, and glass upgrades are usually itemised separately.
Talk to NuView about your bifold doors
NuView supplies and installs bifold doors across Glasgow, Stirling and central Scotland. Every quote is free, honest, and comes with no pressure. Visit our Glasgow showroom or Stirling showroom to see uPVC and aluminium bifold systems in person, or contact us for a survey.
