How Much Do Bifold Doors Cost in 2025?

Bifold doors have become a must-have feature for modern homes in the UK, offering a seamless connection between indoor and outdoor spaces. Whether you are renovating your kitchen, upgrading your patio, or building a rear extension, bifold doors offer excellent aesthetics, space-saving benefits, and flexibility. But how much do bifold doors actually cost in 2025? In this guide, we’ll break down the average prices, factors that affect cost, and what you should consider before buying.

Average Cost of Bifold Doors in the UK (2025)

The cost of bifold doors varies based on several key factors including material, size, glazing, brand, and installation. Below are the average supply and fit prices for bifold doors in 2025:

- uPVC bifold doors: £1,500 – £3,500
- Aluminium bifold doors: £2,500 – £6,000
- Timber bifold doors: £4,000 – £8,000

These prices are for a standard 3-panel configuration (approx. 2.4m – 3m wide). For larger configurations or premium finishes, expect to pay more. On average, a fully installed 4-panel aluminium bifold door will cost around £4,000 – £5,500 in 2025.

What Affects the Cost of Bifold Doors?

There are several important factors that influence the total cost of bifold doors. Understanding these variables will help you plan your budget more effectively and choose the best option for your property.

1. Material

Material is the biggest cost driver when it comes to bifold doors:

- uPVC: The most affordable option. Good for tight budgets but can be bulkier and less durable over time.
- Aluminium: The most popular choice for modern homes. Lightweight, strong, slimline frames and available in various finishes.
- Timber: Offers a natural, traditional look. Premium feel but requires more maintenance and comes at a higher price.

2. Size and Number of Panels

Bifold doors are usually priced by panel or by metre width. A standard panel is around 800mm wide, and you can configure doors to suit spaces from 1.8m to 6m or more. The larger the opening and the more panels you choose, the higher the cost will be — both for materials and installation.

3. Glazing Type

Most bifold doors come with double glazing as standard. However, you can upgrade to:

- Triple glazing for better thermal and acoustic insulation
- Solar control or low-emissivity (Low-E) glass
- Toughened or laminated safety glass
- Integrated blinds within the glazing

These enhancements will increase the price by 10–30%, depending on your choices.

4. Finishes and Colours

Standard white or grey finishes are often included in the base price. If you want dual colours, woodgrain effects, or a custom RAL colour, this can add £200–£800 to the total cost depending on the size and finish complexity.

5. Threshold Options

Flush or low threshold options improve accessibility and create a seamless indoor-outdoor feel. However, these can add complexity to the installation and increase cost. Weather-rated low thresholds tend to be more expensive due to their enhanced sealing systems.

6. Installation Complexity

The cost of installation can vary significantly depending on the following factors:

- Whether a new opening needs to be created
- Structural support (e.g. RSJ or lintel requirements)
- Removal of old doors or walls
- Internal finishing and plastering
- Ease of access to the work site

Typical installation costs range from £800 to £2,000 depending on these factors.

Cost of Bifold Doors by Size (2025 Estimates)

Here’s a rough breakdown of installed bifold door prices based on common widths:

- 2-panel (1.8m – 2.2m): £1,500 – £3,000
- 3-panel (2.4m – 3.0m): £2,000 – £4,000
- 4-panel (3.2m – 4.0m): £3,000 – £5,500
- 5-panel (4.2m – 5.0m): £4,000 – £6,500
- 6-panel (5.2m – 6.0m): £5,000 – £7,500+

Remember, aluminium systems tend to cost 30–50% more than uPVC, and timber can be double the price of aluminium depending on the supplier and finish.

Energy Efficiency and Bifold Doors

Modern bifold doors are designed with energy efficiency in mind. Most systems now come with A or B-rated glazing and thermally broken frames. These features reduce heat loss, lower your energy bills, and make your home more comfortable year-round. While energy-efficient glazing may cost more upfront, it can offer significant savings over time.

Are Bifold Doors Worth the Investment?

Bifold doors offer a stunning visual and functional upgrade for your home. Benefits include:

- Flooding interiors with natural light
- Seamless connection between indoors and garden
- Increased property value
- Flexible ventilation and access
- A modern, high-end aesthetic

Although bifold doors can be a significant investment, they often yield a high return in both lifestyle and property value terms — particularly when professionally installed using high-quality materials.

Tips to Reduce the Cost of Bifold Doors

If you're working with a tighter budget, consider the following ways to cut costs without compromising on quality:

- Choose uPVC or standard aluminium systems
- Opt for fewer panels to reduce material costs
- Use standard colours (e.g. white, grey, black)
- Compare quotes from at least three installers
- Avoid complex structural work by using an existing opening

Can You Install Bifold Doors Yourself?

While DIY installation is possible for experienced builders, most homeowners are better off using a professional installer. Proper fitting is crucial to prevent leaks, draughts, and operational issues. Incorrect installation can also void warranties and impact structural safety. Always ensure your installer is FENSA-registered or offers a comparable guarantee.

Planning Permission and Building Regulations

In most cases, installing bifold doors does not require planning permission if you're replacing existing doors or windows. However, if structural changes are involved (like knocking out a wall), or if you live in a listed building or conservation area, you may need approval. Regardless of planning permission, building regulations must be followed, especially regarding thermal performance, structural integrity, and safety glass requirements.

Conclusion: What Should You Budget for Bifold Doors in 2025?

The cost of bifold doors in 2025 varies widely, but as a general guide, you should budget:

- £2,000 – £3,500 for uPVC systems
- £3,000 – £6,000 for aluminium systems
- £5,000 – £8,000+ for timber systems

Installation can add £800 – £2,000 to your total, depending on the complexity of the project. The final cost will depend on the size, material, glazing, finish, and installer you choose. By understanding the pricing landscape and knowing what to look for, you can make an informed decision that enhances your home for years to come.

To get an accurate quote, always request a site survey from a trusted local installer. With proper planning, bifold doors can be a beautiful, practical, and long-lasting investment in your home.