How Much Do Bifold Doors Cost in the UK?

Quick Cost Overview

• The average cost of bifold doors in the UK is £2,500 to £8,000 fully installed, depending on material and size.
• uPVC is the most affordable material; aluminium is the most popular, offering slimmer frames and a cleaner finish at a higher price point.
• Structural alterations like a new lintel can add £500 to £1,500 on top of the door and installation cost.

In this cost guide, we will cover:

1. How Much Do Bifold Doors Cost? Material Comparison
2. Bifold Door Cost by Number of Panels
3. Bifold Door Labour and Installation Costs
4. What Affects the Cost of Bifold Doors?
5. Bifold Doors vs Other Door Types
6. Do Bifold Doors Add Value to Your Home?
7. Planning Permission and Building Regulations
8. Find Door Fitters Near You on MyBuilder
9. FAQ: Common Questions About Bifold Door Costs

How Much Do Bifold Doors Cost? Material Comparison

The material you choose shapes the overall cost more than anything else - but it also determines how the doors look, how they perform thermally, and how much attention they need over the years. Getting this decision right upfront saves you from expensive regrets down the line.

Here is how the three main options compare:

Material	Supply Only	Supply and Fit
uPVC	£1,500 to £3,500	£2,000 to £4,500
Aluminium	£2,500 to £6,500	£3,000 to £7,500
Timber	£3,000 to £6,000	£3,500 to £8,000+

uPVC bifold doors

uPVC is the most budget-friendly material and a practical choice for homeowners who want good thermal performance without a premium price tag. Modern uPVC bifolds come in a range of colours and wood-effect finishes, and they require very little maintenance beyond occasional cleaning.

Aluminium bifold doors

Aluminium is the most popular choice for bifold doors in the UK and for good reason. The frames are considerably slimmer than uPVC, maximising the glass area and the view. Aluminium is exceptionally durable, does not warp or corrode, and comes in a huge range of powder-coated colours including the popular anthracite grey.

Timber bifold doors

Timber is the premium option and suits period properties and traditional homes where the warmth of natural wood fits the aesthetic. Hardwood and engineered timber systems are available, with engineered being the more stable choice.

The downside is maintenance - timber bifolds need periodic re-sealing or painting to prevent weathering - and the cost is the highest of the three materials.

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Bifold Door Cost by Number of Panels

Panel count is essentially how you size a bifold system to your opening. The wider the gap, the more panels you need - and each additional panel adds to both the material and labour cost.

Most rear garden installations in UK homes fall in the three to five panel range, which covers openings from around 2.4 to 5 metres.

Configuration	Typical Cost (Supply and Fit, Aluminium)
2 panels	£2,000 to £3,500
3 panels	£3,000 to £4,500
4 panels	£4,000 to £5,500
5 panels	£5,000 to £6,500
6 panels	£6,000 to £7,500+

Prices for uPVC systems run roughly 20 to 30% lower than aluminium across equivalent configurations. Timber is typically comparable to aluminium or slightly higher, depending on the wood species and finish.

The number of panels also affects how the doors fold. A three-panel system typically has a 2-1 configuration (two panels fold to one side, one to the other). Larger configurations can fold entirely to one side or split evenly, depending on your preference and the structural opening.

Bifold Door Labour and Installation Costs

Labour for bifold door installation typically runs £600 to £1,500 for a standard domestic fitting, on top of the cost of the doors.

The wide range reflects the complexity involved - a straightforward replacement of an existing opening is at the lower end; a new opening requiring structural work is significantly higher.

Labour Task	Typical Cost
Standard bifold door installation	£600 to £1,200
New opening (structural work included)	£1,200 to £3,000+
Lintel installation (if required)	£500 to £1,500
Removal and disposal of old doors	£150 to £400

Most professional door fitters charge a day rate of £200 to £400 for this type of work. A standard three or four-panel installation typically takes one to two days for a two-person team, depending on whether any structural alterations are needed.

Always confirm whether the quoted price includes removal of old doors and disposal, finishing the internal reveal, and any rendering or plastering around the new frame - these are common sources of unexpected additional charges.

Compare bifold door installers on MyBuilder

What Affects the Cost of Bifold Doors?

Two quotes for what sounds like the same job can come back hundreds of pounds apart. That's not necessarily one installer being unreasonable, it usually reflects genuine differences in the spec, the glazing, or what the opening actually needs structurally. Here is what actually drives the price up or down.

• Material. As covered above, aluminium costs considerably more than uPVC, and timber more again. The material also affects lead time -- bespoke aluminium systems are typically made to order and can take two to four weeks.

• Size of the opening. Wider openings require more panels, more materials, and heavier-duty hardware. Every additional panel adds to both supply and installation cost.

• Glazing specification. Most bifolds come with double glazing as standard. Upgrading to triple glazing adds £300 to £800 depending on the size of the system but improves thermal performance significantly.

• Structural requirements. If the opening needs to be widened or a new lintel installed to support the wall above, this adds significantly to the cost. A structural engineer may be required to specify the lintel, adding £300 to £600 for the report before any work begins.

• Traffic door. Most bifold systems include a traffic door - a single panel within the set that opens independently, so you can step in and out without folding the whole system back. This is usually included in the quoted price but worth confirming.

• Threshold type. A low-profile or flush threshold costs more than a standard raised threshold but dramatically improves the indoor-outdoor flow and accessibility. Budget an additional £100 to £300 for a premium threshold.

• Location. Labour rates in London and the South East are typically 15 to 25% higher than the national average.

Bifold Doors vs Other Door Types

Bifold doors are not the only option for opening up a rear elevation. Here is how they compare to the main alternatives.

• Bifold doors (£2,500 to £8,000): Best for wide openings where you want maximum light and an unobstructed view. The premium choice for open-plan kitchen-diners opening onto a garden.

• Sliding patio doors (£1,500 to £5,000): A strong alternative for openings up to around 3 metres. Lower maintenance than bifolds, with a clean modern look and no panels to fold away.

• French doors (£1,000 to £3,500): The most affordable option and well-suited to narrower openings or traditional properties where a classic look matters more than a wide span.

Bifold doors offer the widest possible opening and the most unobstructed view, but they cost more than sliding or French options for an equivalent opening. Sliding patio doors are a strong alternative for openings up to around 3 metres where you want minimal maintenance and a clean look without the premium bifold price.

For more detail on these alternatives, see our patio door installation cost guide and French doors cost guide.

Do Bifold Doors Add Value to Your Home?

Bifold doors are widely cited by estate agents as a desirable feature, particularly for rear garden-facing installations. Research from Rightmove indicates that mentions of bifold doors in property listings have increased by more than 500% over the past decade, reflecting strong buyer demand.

In practice, a well-installed set of bifold doors can add an estimated 2 to 5% to a property's value, depending on the quality of the installation and how well it suits the property. The impact is strongest in open-plan kitchen-diner setups where the doors create a genuine indoor-outdoor flow that buyers actively look for.

The caveat is that the quality of installation matters as much as the doors themselves. Poorly fitted bifolds that let in draughts, have stiff operation, or have visible gaps around the frame do not add value - they raise red flags for buyers and surveyors.

Planning Permission and Building Regulations

In most cases, replacing existing doors with bifold doors does not require planning permission. It falls under Permitted Development. However, there are situations where consent is needed.

When you may need planning permission:

If your property is listed, in a conservation area, or if the work involves a significant change to the external appearance of the building beyond a like-for-like replacement, you should check with your local planning authority before proceeding.

Building regulations:

Even where planning permission is not required, bifold door installations must comply with building regulations covering thermal performance, structural integrity, and fire safety. Your installer should be able to confirm that the system meets current UK building regulations, including Part L (energy efficiency) requirements.

FENSA registration:

Window and door installations in England and Wales must be notified to the local authority under building regulations, or carried out by a FENSA-registered installer who can self-certify the work. Always confirm your installer is FENSA-registered before work begins.

Find Door Fitters Near You on MyBuilder

Bifold doors are a significant investment and the quality of the installation determines how well they perform for years to come. On MyBuilder, you can post your job for free and receive interest from local door fitters who can survey the opening, advise on the right system, and provide a clear written quote.

Browse their profiles, check customer reviews, and compare quotes before committing to anyone.

All tradespeople on MyBuilder undergo checks at registration, such as ID documents, company details, certifications for regulated jobs and skill assessments, allowing you to hire with confidence.

Find bifold door fitters near you on MyBuilder

FAQ: Common Questions About Bifold Door Costs

How Much Do Bifold Doors Cost for a 3-Metre Opening?

A three to four-panel bifold door system covering a three-metre opening typically costs £3,000 to £5,500 supply and fitted for aluminium, or £2,000 to £3,500 for uPVC.

The final cost depends on the material, glazing specification, and whether any structural work is needed to the opening. You can browse completed bifold door installations on MyBuilder to get a realistic sense of what local fitters deliver and at what price.

How Long Does Bifold Door Installation Take?

A standard installation replacing an existing opening typically takes one to two days for a two-person team. If structural alterations are required, widening the opening or installing a new lintel, allow an additional one to two days for that work to be completed and to cure before the doors are fitted.

Do Bifold Doors Require Planning Permission?

In most cases, no. Replacing existing doors with bifolds under Permitted Development does not require planning permission. However, listed buildings, conservation area properties, and any installation involving significant structural changes to the external appearance of the building may require consent. Always check with your local planning authority if you are unsure.

What Are the Potential Challenges When Installing Bifold Doors?

The main challenges are structural - ensuring the wall above the opening is properly supported, particularly if the opening is being widened. Track alignment is also critical; poorly aligned tracks cause operational issues that worsen over time.

Weatherproofing around the frame and threshold needs to be done carefully to prevent water ingress. Using a FENSA-registered installer with specific bifold experience reduces the risk of these issues significantly.

How Much Maintenance Do Bifold Doors Need?

Aluminium bifolds need very little maintenance. Occasional cleaning of the tracks and hinges, and a light lubrication of the runners once or twice a year. uPVC is similarly low-maintenance. Timber requires more attention: periodic re-sealing or repainting every few years to protect against weathering. Regardless of material, keeping the tracks clear of debris and ensuring the seals remain intact will extend the life of the system considerably.