A typical aluminium bifold door, supplied and fitted, costs somewhere between £3,000 and £12,000+ in the UK in 2026, depending mainly on how many panels you choose. A straightforward 2-panel set starts around £2,000 plus fitting, while a wide 6-panel, 5.4m+ configuration can run £6,000 plus fitting.
At AstraFrame, our aluminium bifold doors supplied and fitted nationwide are priced individually for every home — but the ranges below, based on current UK market rates, give you a realistic starting point before you get a proper quote. We’re a Norwich manufacturer with over 40 years in the trade and 140+ Google reviews, and every installation comes with a 10-year guarantee. Whether you’re planning a straightforward 2-panel replacement or a full-width opening for a kitchen extension, the panel-by-panel breakdown below should get you close before we’ve even seen your project.
How Much Do Aluminium Bifold Doors Cost in 2026?
Supplied and fitted, most UK homeowners pay somewhere between £2,000 for a compact 2-panel set and £12,000+ for a wide 6-panel configuration. Panel count and overall width are the biggest factors, so here’s how the typical market breaks down:
| Panels | Approx. width | Typical price (supplied & fitted) |
|---|---|---|
| 2-panel | ~1.8m | £2,000 – £3,000 |
| 3-panel | ~2.4m – 3.0m | £3,150 – £4,700 |
| 4-panel | ~3.6m – 4.0m | £4,300 – £5,700 |
| 5-panel | ~4.2m – 5.0m | £5,300 – £7,200 |
| 6-panel | ~5.4m – 6.0m+ | £6,000 – £8,000 |
Typical UK market ranges for supplied-and-fitted doors, drawn from current published cost guides — indicative only, and not AstraFrame prices.
Every home’s opening, glazing spec and installation needs are different, which is exactly why we quote each job individually rather than publishing a fixed price list. One thing worth flagging: some suppliers advertise “from” prices that only cover the doors themselves, with fitting quoted separately. The figures above include installation, which is why they may look higher than a supply-only price you’ve seen elsewhere — with AstraFrame, one number covers both.
What About 6m Bifold Doors?
A 6-metre run — typically six panels at around 1,000mm each — sits at the very top of the pricing scale, generally £6,000 to £12,000+ supplied and fitted, and usually towards the upper end of that band. At this width you’re often close to, or past, what a standard opening can take without extra structural work, which is the main reason costs climb here.
The jump from a 5-panel to a 6-panel set isn’t just one more panel’s worth of glass and frame. Wider doors need heavier-duty track and more running gear, and in many cases a bigger opening than the wall currently has. If you’re planning something at this scale, it’s worth budgeting towards the top of the range and getting a survey done early, since the opening itself often has more influence on the final figure than the doors do.
It’s also worth knowing that very wide runs are sometimes configured as two smaller sets meeting at a fixed mullion, rather than one continuous track — a practical detail that affects both the price and the sightlines, and one that’s worth asking about at the design and quote stage rather than assuming either way.
What Affects the Price of Aluminium Bifold Doors?
Panel count and width set the baseline, but glazing spec, colour, threshold choice and any structural work all move the number from there.
- Panels and width — more panels and a wider opening mean more material, more hardware and a higher price, as the table above shows. It’s not always a straight line either: very large sets can need extra reinforcement in the frame itself, which pushes the top end of the range higher still.
- Glazing specification — upgrading from standard double glazing to features like acoustic or solar-control glass adds to the cost. The difference varies by system and by how much of that upgrade you want, so it’s best confirmed at quote stage rather than assumed from a percentage you’ve seen quoted elsewhere.
- Colour — a standard finish is the most cost-effective option. Choosing a dual colour or bespoke RAL shade typically costs more than a single standard colour inside and out, since it usually means a separate finishing run for the frame.
- Threshold type — a standard threshold is the cheapest option; low-profile or flush thresholds, often chosen for step-free access to a patio or garden, can add to the price and are worth discussing with whoever’s fitting them, since not every threshold suits every opening.
- Structural work — if you’re creating a new opening, or an existing lintel needs replacing to take the extra width, this adds meaningfully to the job — sometimes more than the doors themselves. It’s genuinely hard to put a number on this one upfront, since it depends entirely on how your property’s built, whether the wall is load-bearing, and what’s already there — which is exactly what a proper site assessment is for. If you’re altering an external wall, it’s also worth checking whether bifold doors need planning permission before you commit to a design.
How Much Does It Cost to Fit Bifold Doors?
With AstraFrame, fitting is already included in the prices above rather than charged separately — we supply and fit our aluminium bifold doors as one job. Some of the cheaper prices you’ll see quoted online are for the doors alone, with installation arranged separately; once a professional fitter is added on top, the total usually ends up close to the all-in figures here anyway.
Bifold doors are heavier and more involved to fit than a standard window. Getting the frame level, the track running smoothly and the whole thing weathertight takes an experienced team, so it’s not somewhere to cut corners to save a little on labour. In practice, that means taking out the old door or opening, making good the surrounding brickwork or render, fitting and levelling the new frame, hanging and aligning each panel so it runs smoothly on the track, and sealing the whole thing properly. Miss a step and you can end up with doors that stick, let in draughts, or don’t close cleanly — usually more expensive to put right later than to fit correctly the first time.
AstraFrame quotes are free, come with no sales visit, and you’ll have a figure back within 24 hours — so there’s no cost to finding out where you stand.
These are typical UK market prices to give you a ballpark. Every home is different — sizes, glazing spec and installation all move the number — so for an accurate figure we’d need to price your job properly. That’s exactly what our free quote is for: no sales visit, and you’ll have it within 24 hours. Because we supply and fit ourselves, you can save up to 50% compared with national retailers for a comparable spec — worth bearing in mind if you’ve already had a quote elsewhere.
Is Aluminium More Expensive Than uPVC?
Yes — aluminium bifold doors cost more upfront than uPVC, generally by a meaningful margin. That’s a genuine trade-off rather than a technicality, so it’s worth understanding what you’re paying for.
uPVC is the more budget-friendly option and a perfectly reasonable choice for plenty of homes. Aluminium costs more mainly because the material allows for much slimmer frames for the same size of glass, and it copes with the loads involved in a wide, multi-panel door better than uPVC does once you’re past a certain width — which is exactly why aluminium tends to be the default choice for larger bifold sets.
The trade-off shows up most clearly in the frame itself: aluminium’s strength means the sightlines (the visible frame between glass panes) can be noticeably slimmer than uPVC’s, so you get more glass and a cleaner look for the same size of opening. Whether that’s worth the extra cost depends on what you want from the finished result, not just the number on the quote. If you’re weighing the two up for your own project, why AstraFrame recommends aluminium over uPVC for bifold doors goes into the comparison in more depth than we’ve got room for here.
Do Bifold Doors Add Value to Your Home?
Well-fitted bifold doors are generally seen as a worthwhile improvement — they open up the back of a house, bring in more light, and tend to appeal to buyers looking for an indoor-outdoor kitchen or living space.
Whether that translates into extra pounds at resale depends on the property and the local market, so it’s not something we’d put a figure on. What we can say is that aluminium’s durability plays into this too — a set that’s still running smoothly and looking sharp years down the line holds its appeal a lot better than doors that have started to sag, discolour or stick. For more on this, see why bifold doors can increase the value of your home.
What Else Should You Check Before You Buy?
Price is only part of the decision — the system behind the doors, the guarantee, and who’s actually doing the fitting all matter just as much.
AstraFrame’s aluminium bifold doors use the Smart Visofold system, supplied and fitted by us rather than passed on to a third party, with a 10-year guarantee on every job. Beyond that, it’s worth checking things like how many locking points the doors have, what threshold options suit your opening, and whether your installer is FENSA or CERTASS registered to sign the work off against UK Building Regulations.
It’s also worth asking what the guarantee actually covers — materials, workmanship, or both — and how long the company’s been established, since a 10-year guarantee is only as good as the business standing behind it. AstraFrame has been trading from our Norwich base since 1980, and our 140+ Google reviews are a reasonable way to see what past customers made of the fitting itself, not just the doors. We’ve covered all of this in more detail in what to look for when buying bifold doors, which is worth a read alongside this guide.
Thinking about bifold doors? AstraFrame has been manufacturing windows and doors from our Norwich base for over 40 years — and we supply and fit our aluminium bifold doors nationwide. Get a free quote with no sales visit, a 24-hour turnaround and a 10-year guarantee on our work. Get your free bifold door quote →