Internal Single Bifold Doors
Custom Made Bifold Doors
Internal Sliding Doors
Black Internal Bifold Doors
Walnut Folding Internal Doors
Oak Bifold Internal Doors
Grey Folding Internal Doors
White Internal Bifold Doors
40mm Slimline Internal Bifold Door Sets
Fold Flat Internal Doors
Slimline Timber External Bifolds
Slimline Aluminium Bifold Doors
Why Buy Bifold Doors from Emerald Doors?
Open Up the Whole Space
Bifold panels fold and stack to one side, so you can open a full opening in one move, far more than a single hinged or sliding door.
Internal and External Options
Choose internal bifold doors to divide and open up rooms, or external aluminium bifolds that connect your living space to the garden.
Slim Sightlines, More Glass
Our slimline aluminium bifolds use narrow profiles for more glass and light, with toughened double glazing for warmth and security.
Top Hung, Seamless Floor
Many internal bifolds are top-hung with no bottom track, so your flooring runs straight through for a clean, flush finish.
Finishes and Configurations
Bifolds come in oak, white, black, and industrial styles, in a choice of panel numbers and fold directions to suit your opening.
10 Year Guarantee
Every bifold door is backed by our conditional 10-year guarantee against faulty materials or workmanship.
FAQ About Bifold Doors
What are bifold doors?
Bifold doors are a set of panels hinged together that fold and stack to one side when opened, running along a track. Unlike a hinged door that swings or a sliding door that leaves a fixed panel, bifolds clear almost the whole opening, indoors or out.
What is the difference between internal and external bifold doors?
Internal bifold doors are lighter timber panels used to divide and open up rooms. External bifolds, often aluminium, are double-glazed, weatherproof and secure, built to connect a room to the garden and keep the heat in.
What affects the cost of bifold doors?
The main factors are the material (aluminium, timber or uPVC), the overall width and number of panels, the glazing, and whether the set is internal or external. Larger external aluminium sets cost more than internal timber folding doors, so match the type to the job.
What are the best bifold doors?
There is no single best type. Aluminium suits modern external openings with slim frames, timber suits traditional and internal use, and internal folding doors are ideal as room dividers. The best choice depends on where the doors go and the look you want.
How many panels do bifold doors have?
Bifolds can have two or more panels. A two-panel set folds to one side, while larger sets can include an odd number with a traffic door that opens on its own for everyday use without folding the whole set back.
Do bifold doors have a bottom track?
Internal and wardrobe bifolds are often top-hung with no bottom track, for a clean, seamless floor. Heavier external sets usually run on a bottom track to carry the weight and take the weather.
Are aluminium bifold doors energy efficient?
Yes. Our slimline aluminium bifolds use toughened, argon-filled, low-emissivity double glazing and thermally broken frames, so they are energy-efficient and Part L-compliant for external use.
What sizes do bifold doors come in, and can they be made to measure?
Bifolds come in a range of widths from a single opening to a full wall, and we offer made-to-measure and bespoke sets. Measure the width and height of your opening, and check whether the doors fold in or out.