Trade supply · Bifold doors
Aluminium Bifold Doors
Supply-only AluK BSF70 HI bifold doors — slim sightlines, PAS 24 security and smooth folding operation, made to measure for your openings.
The system
AluK BSF70 HI — A Proven Bifold System
We supply bifold doors manufactured in the AluK BSF70 HI system — a well-established aluminium bifold with a 70mm system depth, thermally broken profiles and PAS 24 security testing.
Product brochure
Manufacturer's interactive BSF70 HI brochure — opens in a new tab.
- System
- AluK BSF70 HI aluminium bifold door system
- System depth
- 70mm
- Thermal performance
- Thermally broken aluminium profiles (HI variant)
- Security
- Tested to PAS 24 with multi-point locking
- Glazing
- 28mm double glazing as standard; triple glazing options available
- Configurations
- Multiple sash configurations with a traffic door for everyday access
- Finish
- Polyester powder-coated; dual colour available
- Thresholds
- Low threshold options for level access
Why it sells
Features Your Customers Will Notice
Slim aluminium sightlines
Narrow aluminium profiles keep the glass area high and the sightlines clean — the look your customers are asking for.
Smooth, reliable operation
Quality rollers and hardware mean doors that slide and fold easily — and keep doing so long after you've left site.
Traffic door convenience
A single access leaf for everyday use, so the whole set doesn't need opening to pop in and out.
Weather performance
Engineered seals and thresholds designed for British weather — important on exposed elevations.
PAS 24 security
Multi-point locking and PAS 24 testing give you and your customer confidence in the product.
Colour flexibility
Popular greys and blacks plus a wide RAL range, with a different colour inside and out where the job needs it.
Recent supply
Bifolds We've Supplied & Installed
Genuine WGS projects — the same AluK system we can supply for your jobs.
White · Residential
Agate grey · Garden
Pebble grey · Install
Anthracite · Garden room
Anthracite · Gable extension
Anthracite · Interior
Looking for sliding doors instead? See our Aluna sliding doors
Already Have Drawings or Measurements?
You don't need to spend an afternoon typing every individual frame into a long website form. Upload what you already have — a plan, a schedule, a photo of a jotted-down set of sizes — and we'll review it and come back to you.
- Plans
- Drawings
- Window schedules
- Sketches
- Measurements
- Photographs
- Spreadsheets
Next step
Pricing a Bifold Job?
Send the opening sizes or drawings — we'll confirm the configuration and come back with a trade price.