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Updated September 2026 with current UK prices.
Bifold doors cost from £1,950 for a 3-panel uPVC set in 2026, £3,150–£4,670 for 3-panel aluminium and £2,000–£6,745 for timber, supplied and fitted. Larger aluminium systems reach about £7,200. If a new or wider opening has to be made in a wall, the building work can take the total to £8,000–£15,000 or more.
2026 bifold door prices at a glance
| What you're paying for | 2026 price |
|---|---|
| uPVC, 3-panel, supplied and fitted | £1,950–£2,800 |
| Aluminium, 3-panel, supplied and fitted | £3,150–£4,670 |
| Larger aluminium systems | up to around £7,200 |
| Timber bifolds, supplied and fitted | £2,000–£6,745 |
| Installation labour on its own | £600–£1,200 |
| New opening with steel supports | £8,000–£15,000+ |
Typical UK prices including VAT, based on published UK trade price guides and checked in September 2026. London and the South East usually run 20–30% higher. Guide prices, not quotes. Get free quotes from local installers.
How much are bifold doors by material?
| Material | 3-panel, fitted | Pros | Cons |
|---|---|---|---|
| uPVC | £1,950–£2,800 | Cheapest, low maintenance | Thicker frames; best for smaller openings |
| Aluminium | £3,150–£4,670 | Slim frames, strong, suits wide openings | Higher price |
| Timber | £2,000–£6,745 | Warm, traditional look | Needs regular treatment |
Aluminium is the most popular choice because its strength allows slim frames and wide panels, so you see more glass.
Bifold doors cost by size
Price rises with the number of panels and the width. A 3-panel aluminium set (about 2.4–3m wide) is typically £3,150–£4,670 fitted, and larger 4–6 panel systems run up to around £7,200. Get quotes for your exact opening, as sizes vary.
How much do bifold windows cost?
Bifold windows, often used over a kitchen worktop to open onto a garden, are made in the same materials as bifold doors and priced by size and panel count. They cost less than a door set of the same material, but prices vary widely, so get quotes for your opening.
Replacing existing doors vs making a new opening
- Same-size opening: if you are replacing patio or French doors of a similar width, fitting is usually £600–£1,200 on top of the doors.
- Widening or creating an opening: this needs a new steel beam or lintel, structural calculations, building control approval and making good. That's why totals reach £8,000–£15,000+.
Rules and certificates
- Replacement external doors with large glazed areas must meet Building Regulations for energy efficiency. The work should be done by an installer registered with FENSA or CERTASS, or approved by building control.
- Glass in doors must be safety glass.
- Any new or widened structural opening needs building control approval.
- On some houses (for example in conservation areas or with removed permitted development rights) you may need planning permission.
How to check a bifold door company
Bifold doors usually come with a 10-year guarantee, so the installer needs to last. From our research on Companies House data:
- There are about 5,800 glazing companies in the UK (September 2026).
- 53% of glazing companies set up in 2019–2020 were still trading five years later (Trade Survival Index), and 9.7% were proposed for strike-off or in insolvency in September 2026 (Trade Index).
Before you pay a deposit, check the company's status on HouseJester, confirm FENSA or CERTASS registration, and ask for an insurance-backed guarantee.
Bifold door FAQs
How much are bifold doors? From about £1,950 for 3-panel uPVC, £3,150–£4,670 for 3-panel aluminium, and up to about £7,200 for larger aluminium systems, supplied and fitted in 2026.
Are bifold doors worth it? They open up a room to the garden better than any other door, but they cost more than sliding or French doors and have more moving parts. For very wide openings, sliding doors give bigger glass panels with fewer frames.
How long does it take to fit bifold doors? Usually one day for a like-for-like replacement. A new or widened opening takes longer because of the structural work.
For window prices, see our double glazing cost guide.
Browse windows and doors companies on HouseJester to find installers near you.
This article was created with AI assistance and reviewed by the HouseJester editorial team for accuracy and relevance.
Written by
James Hartley
Home Improvement Writer
A former building contractor turned journalist, James brings hands-on experience to every article. He specialises in home improvement projects, building regulations, and helping homeowners navigate renovation work with confidence.
- Home Improvements
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- Windows & Doors