Home → Cost guides → Bifold doors cost
Bifold doors cost: what it really costs in 2026
Fitted, by material and panels.
£2,500 – £5,500
A two-panel uPVC bifold starts around £2,500 fitted. A three-panel aluminium set runs about £3,750, and large five-panel aluminium around £5,500.
Price by spec
| Option | What it means | Typical price |
|---|---|---|
| uPVC 2-panel | Smaller openings, best value | £2,500 |
| Aluminium 3-panel | The most popular spec | £3,750 |
| Aluminium 5-panel | Full-width wall of glass | £5,500+ |
What actually happens
- Structural opening checked — lintel confirmed or upgraded
- Old doors or window/wall section removed
- Frame fitted dead level (bifolds are unforgiving)
- Panels hung and aligned on the track
- Glazed, sealed and weatherproofed
- Thresholds, trickle vents and final adjustment
Popular choices
Slim-frame aluminium in anthraciteFlush thresholds level with the floorSliders instead — bigger glass, fewer frames
Regulations to know
- Building regulations cover the glazing (safety glass) and thermal performance — FENSA/CERTASS self-certification again
- Widening the opening means structural work: engineer's calcs and building control
Tips from the trade
- Honest comparison: sliders give more glass and cost less per metre of view — bifolds win when you want the wall fully open
- A level threshold needs drainage detail outside; ask how they'll handle it
Plan this project properly
Get a region-adjusted estimate, track budget against real quotes, and find local tradespeople -- free to browse on Qome.
Start planning on QomePrices on this page are approximate, region-adjusted guide figures built from cross-checked UK cost data. They exist to inform you, not to bind anyone. Actual prices are whatever you and your tradesperson agree, and a difference between a Qome guide figure and a real quote is not a fault in either.