Aluminium Folding Patio Doors
Aluminium External Bifold Doors
Aluminium bifold doors that fold away to open almost the full width of your extension, kitchen or glass room to the garden.
Near full-widthopening
Multi-pointlocking
Double-glazedinsulated glass
Any RALor woodgrain
Overview
Open the whole wall to the garden
External bifold doors are made of hinged glass panels that fold and stack to one or both sides, opening almost the entire width of the opening. They are the most popular way to connect a kitchen extension or living room to the garden.
Our aluminium bifolds combine slim frames, insulated glass and multi-point locks for security and comfort.
Choose inward or outward folding, the number of panels and any RAL or woodgrain finish.
Key Features
Why choose aluminium bifold doors?
01
Widest opening
Panels fold away to clear the opening.
02
Secure
Multi-point locking system.
03
Insulated
Thermal and acoustic insulation.
04
Traffic door
A lead door for everyday access.
05
Large sizes
Custom widths and heights.
06
Finishes
Any RAL colour or wood effect.
Buying Guide
Are bifold doors right for you?
Choose by how often you open the whole wall.
Summer entertaining
Bifolds open the entire wall to the garden.
Maximum glass when closed
Sliding doors have fewer frames.
Very large panels
Lift and slide suits wide spans.
Glass room walls
Consider frameless sliding glass.
Technical Specification
Bifold doors — specification
- Aluminium folding door system.
- Inward or outward folding.
- Glass: 8 mm toughened, 4 + 4 mm laminated or 4 + 12 + 4 mm insulated.
- Multi-point locking; lever handle lock.
- Durable top roller and ergonomic handle.
- Any RAL colour or woodgrain.
- Typical production 6–8 weeks.
Gallery
Bifold door gallery
See it in motion
Bifold vs sliding
Bifolds open wider; sliding doors show more glass when closed.
Pricing
Priced by width, panels and glass. Request a free quote.
FAQ
Aluminium bifold doors — FAQ
Do bifold doors fold inwards or outwards?
Either — we recommend outward folding in most gardens.
Are they secure?
Yes, with multi-point locks.
How many panels do I need?
It depends on the width; typically one panel per 700–1,100 mm.
Are they insulated?
Yes, with insulated profiles and double glazing.
Free, No-Obligation Quote
Get your bifold door quote
Tell us about your opening and we will send a bifold door quote.
- Choose panels, fold direction and glass.
- Add the opening width and height in millimetres.
- Leave your details — we reply with a quote.
How to measure
- Measure the structural opening width at the top, middle and bottom.
- Measure the height at both sides.
- Note the floor finish and any step.
- Photograph the opening from inside and outside.