How Much Do Aluminium Bifold Doors Cost in the UK? 2026 Price Guide

Aluminium bifold doors are one of the most popular ways to create a brighter, more open home. Their slim frames, large glass panels and smooth folding operation can transform kitchens, extensions and living spaces while creating a stronger connection between your home and garden.

But how much should you budget for them?

In the UK, aluminium bi-fold doors typically cost around £3,000 to £7,500 supplied and installed, depending on the size, number of panels, glazing specification, colour, hardware and installation requirements. Current 2026 industry price guides put the average cost at around £5,000 for a typical aluminium bifold installation.

However, every project is different. A small three-panel replacement will cost considerably less than a large five- or six-panel system requiring structural alterations.

In this guide, we explain the typical cost of aluminium bifold doors in the UK and the factors that can affect your final quotation.

Aluminium Bifold Door Prices at a Glance

The following figures provide a general indication of what homeowners might expect to pay for aluminium bifold doors.

£3,000–4,700

Typical installed cost — 3-panel bifold

£4,300–5,700

Typical installed cost — 4-panel bifold

£5,200–7,200

Typical installed cost — 5-panel bifold

£7,000+

Typical installed cost — large / bespoke

These are indicative figures rather than fixed prices. The final cost depends on the dimensions, glazing, profile system, installation complexity and any structural work required. Recent UK pricing guides show broadly similar ranges, although exact figures vary between suppliers and specifications.

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3 panel bifold door

How Much Do 3-Panel Aluminium Bifold Doors Cost?

A three-panel aluminium bifold door is often suitable for smaller openings and straightforward replacements.

As a general guide, you could expect to budget approximately £3,000–£4,700, supplied and installed.

The final price can change depending on:

  • Overall door width and height
  • Double or triple glazing
  • Frame colour and finish
  • Glass specification
  • Hardware
  • Threshold design
  • Installation requirements

For a straightforward replacement where an existing opening is already suitable, installation is usually simpler than creating a completely new opening.

How Much Do 4-Panel Aluminium Bifold Doors Cost?

Four-panel systems are a popular option for larger kitchen extensions and rear openings.

A typical four-panel aluminium bifold installation may cost approximately £4,300–£5,700, depending on the specification.

The additional panel increases the amount of aluminium, glass, hardware and installation work required. However, it can also provide a wider opening and greater connection between your indoor and outdoor spaces.

For a straightforward replacement where an existing opening is already suitable, installation is usually simpler than creating a completely new opening.

4 Panel Aluminium Bifold Doors
Borehamwood 5 panel with heritage look

How Much Do 5-Panel Aluminium Bifold Doors Cost?

For homeowners looking to create a larger opening, five-panel bifold doors can be an excellent choice.

A typical five-panel aluminium system may cost approximately £5,200–£7,200 installed, with larger or highly customised installations potentially costing more.

Five-panel configurations are particularly popular for:

  • Large rear extensions
  • Open-plan kitchens
  • Garden rooms
  • Contemporary homes
  • Wide patio openings

If you are planning an opening wider than a standard door set, it is important to discuss the structural requirements with your installer before ordering the doors.

What Affects the Cost of Aluminium Bifold Doors?

There isn’t one fixed price for aluminium bifold doors because several factors influence the final quotation.

Door Size

Size is one of the biggest cost factors. Larger doors require more aluminium and glass and may require additional panels. A wider opening can also require more substantial structural support. The larger the opening, the higher the potential installation cost.

Number of Panels

Generally, adding more panels increases the overall price. For example, a three-panel system will usually cost less than a five-panel system because the larger configuration requires additional frames, glass, hardware and installation work. The number of panels should therefore be selected based on both your budget and the width of the opening.

Aluminium Profile

Not all aluminium bifold doors are manufactured to the same specification.
Premium systems may offer:
• Slimmer sightlines
• Larger panel sizes
• Higher-performance thermal breaks
• Advanced hardware
• Improved security
• Bespoke colour options
A cheaper door isn't necessarily the best-value option if it compromises the appearance, performance or longevity you expect.

Glass Specification

The type of glazing can also affect the price.
Options may include:
• Energy-efficient double glazing
• Triple glazing
• Low-E glass
• Toughened safety glass
• Laminated glass
• Solar-control glass
• Acoustic glazing
Your choice should depend on the location of the doors, the orientation of the property and your priorities for thermal performance, security and comfort.

Colour and Finish

Standard colours are generally more affordable than bespoke finishes. Anthracite grey, black and white are popular choices, but aluminium systems can also be available in a wide range of powder-coated finishes. Dual-colour options, where the internal and external frames have different colours, can also increase the price.

Installation

Installation isn't simply a case of fitting the doors into an opening.
Professional installation may include:, • Removing existing doors
• Preparing the opening
• Positioning and levelling the frame
• Installing the door panels
• Fitting glazing
• Installing hardware
• Weather sealing
• Adjusting the folding mechanism
• Finishing around the opening

Current UK guides place typical bifold installation labour at roughly £600–£1,200, depending on the size and complexity of the installation.

Do You Need Structural Work?

This is an important consideration when budgeting for bifold doors.

If you’re replacing existing patio or French doors with bifold doors of a similar size, significant structural work may not be necessary.

However, if you’re:

  • Creating a brand-new opening
  • Making an existing opening wider
  • Removing part of a load-bearing wall
  • Replacing a window with a much larger door opening

you may need additional structural support.

This could involve a structural engineer, lintel or steelwork, building control and associated labour.

Recent UK cost guides suggest structural alterations can add hundreds or even more than £1,000 to a project depending on the complexity.

This is why getting a property-specific quotation is important rather than relying solely on an online price estimate.

Aluminium Bifold Doors: Supply Only vs Supply and Fit

When comparing prices online, always check whether the figure is for supply only or supply and installation.

A supply-only price may initially look considerably cheaper, but you’ll still need to account for:

  • Delivery
  • Installation
  • Glazing
  • Removal of existing doors
  • Disposal
  • Building work
  • Finishing
  • Structural alterations where required

A supply-and-fit quotation gives you a much clearer picture of your overall project budget.

Aluminium vs uPVC Bifold Doors: Which Is More Affordable?

If budget is your main consideration, uPVC bifold doors can be cheaper than aluminium.

However, aluminium offers several advantages that make it particularly attractive for larger openings.

Feature Aluminium uPVC
Frame appearance Slimmer Generally thicker
Large openings Excellent More limited
Natural light High glass-to-frame ratio Lower glass-to-frame ratio
Durability Excellent Good
Maintenance Low Low
Modern appearance Excellent Good
Typical cost Higher Lower

Aluminium is generally the preferred option for homeowners who want slim sightlines, large glass panels and a contemporary appearance. Current UK pricing sources also show aluminium bifolds costing more than uPVC systems.

Are Aluminium Bifold Doors Worth the Cost?

For many homeowners, yes.

The cost isn’t only about replacing a door. Aluminium bifolds can change the way a room is used.

When closed, they provide a large glazed area that brings natural light into the home. When opened, multiple panels fold neatly to the side to create a much wider connection between the interior and garden.

They’re particularly effective for:

Kitchen extensions

Create a bright, open entertaining area.

Living rooms

Bring more daylight and garden views into the room.

Rear extensions

Make a new extension feel connected to the garden.

Garden rooms

Create a modern entrance with generous glazing.

Open-plan homes

Help connect different living areas with the outdoors.

How Can You Get the Best Price for Aluminium Bifold Doors?

If you’re planning to invest in bifold doors, don’t simply choose the cheapest quotation.

Instead:

Compare like-for-like specifications

Make sure each quote includes the same door size, number of panels, glazing, colour and installation requirements.

Ask what’s included

Check whether the price covers installation, removal of existing doors, finishing and disposal.

Consider long-term value

A high-quality aluminium system may have a higher initial price but can offer excellent durability, low maintenance and a long service life.

Get a site survey

A professional survey allows the installer to identify structural, access and installation requirements before work begins.

What Should Be Included in Your Bifold Door Quote?

Before accepting a quotation, check whether it clearly states:

A detailed quote makes it easier to compare different suppliers and avoid unexpected costs later.

Need Help?

Frequently Asked Questions

Aluminium bifold doors generally cost around £3,000–£7,500 supplied and installed, although smaller or simpler systems can cost less and large bespoke installations can exceed this range.

Yes. Aluminium generally costs more than uPVC, but it offers slimmer frames, excellent strength and a contemporary appearance that is particularly suitable for large openings.

Installation labour is commonly around £600–£1,200, depending on the size and complexity of the project. Structural alterations would normally be an additional cost.

Usually, yes. Larger openings require more materials, larger glass panels and potentially more panels. Structural modifications may also be required.

Modern aluminium bifold doors can offer good thermal performance when they use thermally broken frames and high-performance glazing. The exact performance depends on the door system and glass specification.

Replacing existing doors may not normally require planning permission, but creating or significantly widening an opening can involve building regulations and, depending on the property, planning considerations. Listed buildings and conservation areas may have additional requirements.

Get a Bespoke Aluminium Bifold Door Quote from Daylight Glazing

The cost of aluminium bifold doors depends on far more than the number of panels. The size of your opening, glazing, aluminium system, colour, hardware and installation requirements can all influence the final price.

That’s why the best way to understand the cost for your home is to arrange a bespoke quotation.

At Daylight Glazing, we supply and install aluminium doors designed to combine contemporary style, slim sightlines and excellent everyday performance.

Whether you’re upgrading existing patio doors, renovating your home or creating a new extension, our team can help you find an aluminium bifold door configuration to suit your property and budget.

Ready to open up your home? Contact Daylight Glazing today for a bespoke aluminium bifold door quote.

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