Aluminium Bifold Doors Cost: A Complete Pricing Guide

How much do aluminium bifold doors cost? In the UK, most sets cost between £1,400 and £7,500. Supply only starts around £1,400 to £3,600 for a standard 2- or 3-panel door. Fully supplied and installed sets average around £5,000, while larger 5- and 6-panel configurations range from about £5,500 to £11,000 or more.

Panel count, glazing and installation complexity decide where your project lands in that range. Knowing which of those three is driving your quote is what makes comparing installers genuinely useful.

Based on Bifold Doors’ experience fitting doors across Buckinghamshire and Oxfordshire, the price question rarely has a one-line answer. A 1930s semi near Aylesbury and a Victorian terrace in central Chesham can need very different budgets for the same width of door.

This guide breaks it all down. You’ll see prices by panel count and size, what installation really involves, when supply only makes sense, and what pushes a quote up or down.

How Much Are Aluminium Bifold Doors?

A full aluminium bifold set starts from around £2,300 supplied and installed, or £1,400 supply only. Panel count is the single biggest price driver in either route. Glazing specification and colour follow close behind.

Aluminium Bifold Doors Price List by Panel Count

The table below shows the typical cost of aluminium bifold doors by configuration. Use it as a starting point, not a quote.

Configuration	Minimum Width	Supply Only	Supply and Install
2 panel	1.6m	£1,400 to £2,300	£2,300 to £4,500
3 panel	2.1m	£2,000 to £3,600	£3,000 to £5,000
4 panel	3.0m	£2,800 to £5,000	£4,000 to £7,000
5 panel	3.6m	£3,500 to £6,000	£5,500 to £8,500
6 panel	4.5m	£4,200 to £7,200	£7,000 to £11,000+

Notice how the installed figure doesn’t simply double the supply price. Labour, survey and delivery are partly fixed costs, so they weigh more heavily on smaller sets. 

Supply Only Bifold Doors vs Supply and Install

Supply-only bifold doors can cut your outlay roughly in half. In return, you take on fitting, removing the old door and making good, or you pay a separate tradesperson to do it. Supply and install costs more but puts the whole job, and its risks, with one company.

Choosing aluminium bifold doors supply only works best when you already have a fitter you trust. You’ll also need to coordinate timing yourself. If the doors arrive before the opening is ready, or the other way round, your savings can shrink fast.

Supply only also leaves you handling Building Regulations sign-off. A supply-only price rarely includes a FENSA certificate or disposal of your old door.

If you don’t have a fitter lined up, supply and install is usually the more predictable option. One company measures, fits, certifies and stands behind the result.

Bifold Door Installation Cost Explained

Installation labour typically adds £600 to £1,200 on top of the door itself. That covers removing the old door, fitting the new frame and panels, weatherproofing and certification. Structural work, such as widening the opening or fitting a new lintel, is usually priced separately.

The average cost to install bifold doors sits around that £600 to £1,200 range for a straightforward opening. Your figure moves with opening size, access and the condition of the existing wall.

What’s Included in a Standard Installation Quote

A standard quote should cover removing and disposing of the existing door or wall section. It includes fitting the new frame, panels and hardware, then weatherproofing and sealing around the opening.

Basic making good to plaster or brickwork is usually included too. On completion, you should receive a FENSA certificate confirming the work meets Building Regulations.

Additional Costs to Budget For

Budget separately for structural work if the opening needs widening. Scaffolding may be needed for upper floor access. Disposal of the old door can also cost extra, especially on supply-only jobs, as councils charge for bulky waste.

Here’s what most first-time buyers get wrong. They assume the cost to install bifold doors automatically covers opening up the wall. On period homes with load-bearing rear walls, that’s often a separate cost. A fair installer flags it at survey stage, before any deposit is paid.

These extras explain why two bifold door installation cost figures can differ so much. One quote includes the lintel and making good. Another leaves them for you to arrange.

Prices by Size: From 2.4m to 4m and Beyond

Width drives price almost as much as panel count. A typical 2.4m opening suits a 3-panel set, while 4m openings usually need 4 or 5 panels. As width grows, so do glass, hardware and labour, and very wide openings may need structural steel above.

Cost of a 3 Panel Bifold Door

A 3-panel set is the most popular choice for rear extensions. It typically costs £2,000 to £3,600 supply only, or £3,000 to £5,000 supplied and installed.

Smaller 2.4 m aluminium bifold doors often sit toward the lower end of that range. Most of the cost sits in the panels and thermally broken frame. Standard double glazing and multipoint locking are usually included as standard. Installation labour accounts for £600 to £1,200 of the total.

Your survey visit is often free or credited against the final invoice. Confirm that before booking.

What changes the price on a 3-panel set? A glazing upgrade, such as triple, acoustic or solar control glass, adds several hundred pounds. A dual colour frame adds cost because inside and outside need separate powder coating runs. Structural opening up on period homes can add £500 or more to installation.

Larger Openings

Planning 4 metre aluminium bifold doors? Expect a 4 or 5 panel layout, depending on how wide you want each panel. Our guide to 4m bifold doors walks through those layouts.

A 3m opening is the most common extension width. Our guide to what a 3m bifold door costs covers that size in detail.

Going wider still changes the numbers quickly. See our guide to 5m bifold door costs for that step up.

For a full rear wall, our 6m bifold door cost guide explains when structural steel enters the budget.

Aluminium Bifold Doors Price Per Metre

Price per metre runs roughly £1,000 to £2,000 supply only, or £1,500 to £2,500 or more installed. Buckinghamshire’s local benchmark of £1,500 to £2,000 per metre installed sits within that national range.

How Width and Panel Count Affect Price Per Metre

Wider doors don’t scale up per metre in a straight line. A 3-panel door often carries a slightly higher per metre price than a 5-panel one. The survey and delivery are fixed costs spread across fewer panels.

That surprises many people. They assume more panels always means a steeper bill per metre.

Comparing Price Per Metre Across Quotes

When comparing quotes per metre, check that the glazing matches. That’s usually where the real difference sits, not the frame.

A quote that looks unusually cheap per metre often has standard glazing where a competitor quoted an upgrade. The two aren’t comparable until you check.

Bifold Door Prices in Buckinghamshire

Buckinghamshire pricing tracks the South East average, at around £1,500 to £2,000 per linear metre installed. Total project costs usually land between £3,000 and £7,500, depending on panel count and access.

What Local Homeowners Should Expect

A typical bifold door cost in Bucks also reflects the type of street you live on. Conservation area towns such as Old Amersham, parts of Marlow and Beaconsfield can add cost through restricted colours or listed building consent. Those requirements sit outside standard FENSA-covered work.

Narrow terraced streets in Chesham and High Wycombe can add cost if the delivery van needs a parking suspension. Scaffolding permits can add a few days where upper floor access is needed.

A homeowner replacing a rear extension opening on a 1930s semi near Aylesbury will usually have a simpler job than one on a Victorian terrace in central Chesham. The opening is often already structurally prepared, and the street allows closer van access.

If your home is listed or in a conservation area, confirm with your local planning department before ordering. It affects colour and material choice, not just price. It isn’t something an installer can sign off for you.

What Affects the Price of Aluminium Bifolds?

Size and panel count, glazing specification, and colour or finish move the price most. A fully installed set averages around £5,000 nationally. Any one of these factors can push the overall cost of bifold doors well above or below that figure.

Panel Size and Number of Panels

More panels mean more material, more hardware and more labour time. As covered above, the per metre relationship isn’t perfectly linear once fixed costs are spread across a wider opening.

Frame Material

Aluminium costs more than uPVC upfront. In return, you get slimmer sightlines and better long-term durability, with less risk of warping or discolouration over a 15 to 20 year span.

Glazing and Glass Type

Standard double glazing is the base specification in most quotes. Triple glazing or acoustic and solar control coatings improve thermal or noise performance but add cost per panel. They’re worth weighing if your extension faces a busy road or strong afternoon sun.

Colour and Finish Options

Standard RAL colours keep both cost and lead time down. Dual colour and specialist finishes push aluminium bifold door prices up because the frame needs separate powder coating runs inside and out.

Anthracite grey is the most popular choice and is usually priced like a standard colour. Our guide to grey bifold doors explains the shades and matching tips.

Hardware and Security

Multipoint locks are usually included as standard. Upgraded handles, cylinders or security packs add modest cost. Our guide on how bifold door locks work explains what you’re paying for.

Installation Complexity and Access

Narrow streets, upper floor fitting and structural widening all add labour cost. Parking restrictions in central Chesham and High Wycombe can need a permit or suspension for the delivery vehicle. Some quotes leave that out entirely.

Aluminium vs uPVC Bifold Doors: Cost Comparison

Standard double glazing is the base spec included in most quotes. Triple glazing or acoustic and solar-control coatings improve thermal or noise performance but add cost per panel, worth weighing if your extension faces a busy road or gets strong afternoon sun.

Aluminium bifolds cost more upfront than uPVC. They give slimmer frames, wider panels and a broader colour range. uPVC bifolds cost less and suit smaller openings and budget-led projects very well.

Feature	Aluminium	uPVC
Typical cost	Higher (£1,400 to £7,500)	Lower upfront
Sightlines	Slimmer, more glass	Chunkier frames
Durability	Strong, low long-term maintenance	Good, can discolour or warp over decades
Colour options	Wide RAL range, dual colour possible	More limited
Best suited to	Wide openings, contemporary extensions	Budget-led projects, smaller openings

If your budget is tight and the opening is under 2.4m, uPVC is genuinely worth comparing. The sightline difference matters less on a narrower opening, and the saving is real. Our PVC bifold guide covers uPVC prices and specs in detail.

You can also browse our wider uPVC door range if a bifold isn’t essential for your opening.

How Bifolds Compare With Other Aluminium Doors

Bifolds are one of several aluminium door types, and prices differ by style. Recent 2026 guides put the average cost of aluminium doors, supplied and fitted, at around £2,500 to £5,500 for French doors and £3,000 to £6,500 for a 2-pane sliding door. Aluminium front doors typically run £1,800 to £4,500.

That makes bifolds broadly comparable to sliding doors on similar widths. The right choice usually depends on how you’ll use the opening, not just the price.

Want to keep panels in the opening rather than folding them away? Our aluminium sliding doors may suit wider openings or a different track layout.

Commercial premises have different requirements again. Our aluminium commercial doors page covers those options.

Do Bifold Doors Need Planning Permission?

Most like-for-like bifold replacements don’t need planning permission under permitted development. Building Regulations still apply separately, including Part L for energy efficiency. Conservation areas, listed buildings and new openings follow different rules, so check with your local authority first.

This is general guidance, not personalised planning advice. Part Q covers security in new dwellings, so it applies to new builds rather than most replacement jobs.

Ask to see your installer’s registration number before signing. A FENSA registered installer can self-certify Building Regulations compliance without a separate council inspection. That’s what separates a certified installer from one working outside the scheme.

If your project involves a flat, an HMO or a building with shared escape routes, check the government’s current fire door guidance under the Fire Safety (England) Regulations 2022 before finalising your specification.

Getting an Accurate Price for Your Buckinghamshire Project

Online ranges are a starting point only. Panel count, glazing and access all shift the final figure. When it comes to the aluminium bifold doors cost you’ll actually pay, a site survey is the only way to get a genuinely comparable quote.

Our aluminium bifold doors are fitted by our own in house team across Buckinghamshire and Oxfordshire, not subcontracted. It’s worth asking any installer you’re comparing us with the same question.

Wider openings or a different track layout might suit our aluminium sliding doors better, and budget-led projects can compare our uPVC doors range. Commercial premises can find relevant options on our aluminium commercial doors page.