Last Updated on 14 April 2025 by Josh Lucas
When it comes to modern home design, nothing says sleek and spacious like a set of beautifully crafted bi-fold doors.
Whether you’re planning a full extension, giving your kitchen a garden view, or just exploring ways to let more light into your living space, bi-fold doors are the perfect upgrade.
These versatile and elegant doors fold back completely, opening up your home to the outdoors and making even smaller spaces feel grand.
They combine cutting-edge performance with architectural appeal, offering everything from thermal efficiency and security to effortless functionality and design flexibility.
In this guide, I’ll walk you through exactly why bi-fold doors continue to be one of the most desirable additions to UK homes — and how you can choose the right one for yours.
From creating seamless garden access to opening up interiors, these smart, space-saving doors do it all. Let’s dive into why they’re a top choice for modern homes across the UK.
At a Glance: What We’ll Cover
- What are bi-fold doors and how do they work?
- Why aluminium bi folding doors lead the pack
- The real benefits: space, style, security & savings
- How to use bi fold doors internal for smart interiors
- How to choose: Korniche vs Smart Visofold vs Smart Heritage
- Design options: colours, handles, finishes, configurations
- Installation, maintenance & cost insights
- Your FAQs answered
What Are Bi-Fold Doors?
Also called bifold doors, bi folding doors, or even concertina doors, these versatile systems are a modern alternative to traditional patio or French doors.
They consist of multiple glazed panels that fold back on themselves in a concertina motion, stacking neatly to one or both sides of a doorway.
This design creates a wide, unobstructed opening that merges indoor and outdoor spaces effortlessly.
They are ideal for linking your kitchen or living area directly to your garden or patio, bringing in heaps of natural light, and creating a sense of flow in open-plan interiors.
Bi-fold doors can also open up entire walls, making them perfect for connecting spaces or maximising the impact of home extensions.
Whether you’re updating a modern property or enhancing a period home, they provide both function and aesthetic value.
Why Choose Aluminium?
Aluminium bi folding doors have become the UK homeowner’s go-to. Why? They offer:
- Super-slim sightlines – More glass, less frame
- Durability – Weatherproof, rust-free, fade-resistant
- Thermal performance – Polyamide breaks and brush seals keep warmth in
- Low maintenance – A quick clean is all they need
- Long lifespan – Expect decades of smooth performance
In short: they’re strong, stylish, and smart.
What Are the Benefits?
Indoor-Outdoor Living
One of the biggest draws of bi-fold doors is their ability to connect your home and garden in one seamless move.
With the entire wall opened up, you can enjoy the fresh air, extend your entertaining space, and create a fluid link between indoors and outdoors — perfect for family BBQs or a peaceful morning coffee al fresco.
Flood Your Home with Light
With more glazing and less frame, bi-folds let natural light flood in even when closed.
The wide openings and large glass panels brighten up darker spaces, reduce the need for artificial lighting, and help your home feel larger and more inviting.
Save Space
Unlike traditional patio or French doors that swing open and need clearance, bi-fold doors fold back flat against themselves.
This space-saving design makes them ideal for smaller patios, compact kitchens, or anywhere you want to maximise usable floor area.
Safety & Security
Security is never compromised.
Features like multi-point locking systems, shoot-bolt locks, laminated glass options, and PAS24 certification ensure your home stays protected.
Doors like Korniche also include anti-lift tracks and anti-backdrive handles to deter intruders.
Thermal Efficiency
Thanks to modern engineering and thermal break technology, today’s bi-folds are as efficient as they are elegant.
Expect U-values as low as 1.5 W/m²K, double or triple glazing options, and insulated frames that help reduce heat loss and save on energy bills.
Aesthetic Versatility
Whether you’re working with a period property or an ultra-modern extension, bi-folds complement any style. Choose from a wide range of colours, hardware finishes, and configurations to make them your own. Dual-colour frames let you match interior decor and exterior style effortlessly.?
Using Bi Fold Doors Internally
Bi fold doors internal are gaining traction for:
- Dividing kitchen-diners from lounges
- Creating home offices
- Sectioning off playrooms or snug areas
For something chic, our Smart Heritage range offers steel-look frames with ultra-slim sightlines. Perfect for industrial or Art Deco vibes.
Comparing Your Options: Which Bi-Fold Doors are Right for You?
Korniche Aluminium Bi-Fold Doors
Korniche Bi-fold doors are celebrated for their market-leading slim sightlines, making them perfect for homeowners who want uninterrupted views and a minimalist finish.
The patented roller system ensures a smooth, effortless glide every time you open them, adding a premium feel to your space.
They also come PAS24 certified for enhanced security and can be tailored in over 150 RAL colours, including dual-colour combinations.
Designed with the installer in mind, they’re remarkably quick to fit and ideal for both DIYers and professionals.
Smart Visofold
Smart Visofold is a reliable and well-established aluminium system known for its versatility and value. It can be configured to open internally or externally, giving you design flexibility.
It’s a great option for larger openings and comes in a variety of colours and finishes, including woodgrain effects and metallics.
The system supports multi-point locking and PAS24 certification, and it is widely used by trade professionals across the UK due to its dependable performance.
Smart Heritage (Industrial Style)
The Smart Heritage range combines iconic steel-look aesthetics with all the modern benefits of aluminium.
With a slim 94mm sightline, it replicates traditional steel doors without the maintenance or weight.
This range is perfect for interior use as room dividers or external applications in properties requiring a period-style finish.
It delivers excellent thermal and acoustic performance while maintaining slim, elegant lines.
Design & Personalisation Options
Customise your bi-folds to suit your home:
- Colours: 150+ RAL shades, including dual colour options
- Handles & Hinges: Black, chrome, brushed steel & more
- Configuration: 2 to 7 panels, open in or out, traffic doors available
- Thresholds: Low-level or rebated integrated cill
Need airflow? Opt for trickle vents without frame extenders.
How Are Bi-Fold Doors Installed?
Here’s what to expect:
- Site Survey: Measurements taken to ensure a perfect fit
- Manufacture: Made to order in your chosen colour and size
- Delivery: Korniche doors are pre-glazed or ready-to-glaze for ease
- Installation: Usually done in a day or two by professionals
DIY-er? Korniche is especially installer-friendly with its clip-in bead system.
Looking After Your Bi-Fold Doors
Taking care of your bi-fold doors is simple and hassle-free, which makes them perfect for busy households. Start by cleaning the door tracks every couple of months. This helps to prevent the build-up of dust, grit, or garden debris that can affect the smooth gliding action of your panels.
Next, give the door frames a gentle clean using warm soapy water and a soft cloth. Avoid abrasive cleaners or rough sponges as these could damage the powder-coated finish over time. A quick wipe-down is usually all it takes to keep your doors looking like new.
It’s also a good idea to lubricate the hinges, locks, and rollers once a year. Use a silicone-based lubricant to keep everything operating smoothly and to prevent wear. This small bit of upkeep ensures long-term performance and keeps that effortless opening motion feeling just right.
Thanks to their durable aluminium construction and weather-resistant finish, there’s no need to worry about repainting or treating your bi-fold doors. They’re built to stand the test of time with minimal effort from you.
What Affects the Cost of Bi-Fold Doors?
While prices vary, consider these key factors:
- Size & number of panels
- Material (aluminium vs. uPVC)
- Glazing type (double, laminated, or low-E glass)
- Threshold option (standard or rebated)
- Supply only vs. supply & fit
For an accurate price, use our Instant Quote Tool.
Let’s Make It Happen: Get Started with Your Bi-Fold Doors
You’ve got the facts, now it’s time to bring your vision to life.
Whether you’re opening up your home to the garden, giving your interiors a sleek new feel, or upgrading security and efficiency, bi-fold doors deliver more than just style — they elevate your entire living experience.
Need help choosing the perfect fit for your project? Our expert team is on hand to guide you every step of the way.
Give us a call on 01642 309 576 or get an instant quote online at GFD Homes.
FAQs
How to dress bifold doors?
Go for The Integral Blinds Range for seamless privacy and style. Avoid heavy curtains that block the view or interfere with folding.
Do I need planning permission for bifold doors?
Usually no – unless your home is listed or in a conservation area. If you’re extending, you may need approval.
What blinds are best for bifold doors?
Integrated blinds are best. They move with the door and don’t get in the way.
Can bi-fold doors add value to your home?
Yes, bi-fold doors are considered a premium feature. They enhance natural light, create flexible living spaces, and boost kerb appeal — all of which can increase a property’s market value.
Recommended Reads
- uPVC Bifold Doors vs Aluminium: Which Is Best For Your Home?
- Do I Need a FENSA Certificate for Bifold Doors? What You Need to Know.
- French Doors vs Bifold: Which is Best for Your Home?
- Integral Blinds In Glass: A clear solution for light and privacy
Trade Bi-Fold Doors: Looking for trade prices? Check out our trade site The Trade Village
