
Cortizo Aluminium Bifold Doors
Aluminium Bifold Doors
Premium aluminium bifold doors manufactured in Leeds using Cortizo systems. 5–10 day lead times, fleet delivery, and the UK's most competitive trade and retail pricing.
Lead Time
2–10 Working Days
Max Height
3,000mm
Max Width
7,000mm (7 Panels)
U-Value
From 1.4 W/m²K
See Your Colour on the Door
Pick a colour, choose how many panels and which way they fold, then drag to open it. Turn the door to see it from inside, or set it into a brick wall to judge the colour against a house.
3D view loads as you scrollWe'll send your door details with your enquiry.
On-screen colours are a guide and vary between displays; the RAL code is the reference. Drag sideways on the door to turn it.
For a limited time we will price match any like for like quote!
Get so much more for your money with Mazuli's unbeatable lead times and superior quality.

2–10 Working Days
Lead Time
Why Choose Mazuli Bifold Doors?
Mazuli aluminium bifold doors combine slim sightlines, superb hardware quality and industry-leading lead times — all manufactured in-house at our Leeds factory using premium Cortizo aluminium profiles. Whether you're a trade installer fitting out a new-build extension or a homeowner looking to transform your living space, our custom-made bifold doors are engineered for seamless indoor-outdoor living. Every door is precision-cut and assembled by our experienced factory team, quality-checked before dispatch, and delivered on our fleet of vehicles to a guaranteed date.
Ultra-Slim Sightlines
Premium Cortizo aluminium profiles for minimal frame interruption and maximum glass.
Multi-Point Locking
Robust security as standard with PAS 24 accreditation available on request.
Traffic Door Option
Single-panel everyday access without folding all panels — available on any configuration.
Fleet Delivery
Delivered on our branded fleet to a guaranteed fixed date that won't change.
Made at our Leeds factory and delivered across Yorkshire & the UK on our own fleet.
2 to 7 Panels, up to 7 Metres
Made to your exact measurements, with panels up to 1,200mm wide, 3,000mm tall and 120kg. Choose left or right opening, set the fold direction per panel, and add a traffic door to any layout.
2 panels
Up to 2,400mm
Small openings
2 fold layouts · 2-0-2 · 2-2-0
3 panels
Up to 3,600mm
Standard rear extensions
4 fold layouts · 3-0-3 · 3-3-0 · 3-2-1 · 3-1-2
4 panels
Up to 4,800mm
Large patio areas
5 fold layouts · 4-0-4 · 4-4-0 · 4-1-3 · 4-3-1 · 4-2-2
5 panels
Up to 5,000mm
Wide-span openings
6 fold layouts · 5-5-0 · 5-0-5 · 5-4-1 · 5-1-4 · 5-2-3 · 5-3-2
6 panels
Up to 6,000mm
Orangeries & garden rooms
7 fold layouts · 6-0-6 · 6-6-0 · 6-1-5 · 6-5-1 · 6-4-2 · 6-2-4 · 6-3-3
7 panels
Up to 7,000mm
Maximum opening width
8 fold layouts · 7-0-7 · 7-7-0 · 7-1-6 · 7-6-1 · 7-5-2 · 7-2-5 · 7-4-3 · 7-3-4
7 Stock Colours + Any RAL
Choose from our seven stock colours with the fastest lead times, or specify any RAL colour for a bespoke finish. Dual-colour options — different inside and out — are available at no extra charge on all stock finishes.
White
RAL 9016
Unglazed Lead Time
2–5 days
Glazed Lead Time
6–10 days
Dual-colour (e.g. Anthracite outside / White inside) available on all stock finishes at no extra cost.
Glazed or Unglazed, Built to Keep the Heat In
Thermally broken Cortizo profiles with polyamide thermal breaks keep heat in without giving up the strength of aluminium. Order glazed and we supply the glass, or unglazed to fit your own.
- W/m²K U-value, double glazed
- 1.4W/m²K U-value, double glazed
- W/m²K U-value, triple glazed
- 1.0W/m²K U-value, triple glazed
- Air permeability
- Class 4Air permeability
- Wind resistance
- C5/B5Wind resistance
Fully glazed
Supplied with the glass units, frames, hardware and locking — everything for a complete fit on site.
- 28mm double glazed units
- 44mm triple glazed available
- Toughened safety glass as standard
- Self-cleaning & acoustic options
Unglazed
Fully assembled with frames, hardware and locking, ready to glaze on site. Popular with trade installers.
- Fastest lead time: 2–5 working days
- Source your own specialist glass
- Laminated, acoustic or fire-rated
- Lower cost — ideal for trade
Secure as Standard, Ready for Building Control
Every bifold leaves the factory with multi-point locking, internal beading and anti-lift protection, and is built to the Building Regulations your project will be signed off against.
Security
Multi-point locking
Espagnolette locking engages at several points along the frame.
Internally beaded
Glazing beads sit inside, so glass can't be removed from outside.
Anti-lift blocks
Shoot bolts and anti-lift blocks stop panels being lifted off the track.
Secured by Design
SBD-accredited hardware packages available on request.
Building Regulations
Part L — Thermal performance. U-values from 1.4 W/m²K with double glazing
Part A — Structural integrity. Profiles tested for wind load and strength
Part M — Accessibility. Low-threshold and level-access options
Part F — Ventilation. Trickle vents for background ventilation
Planning permission: adding or replacing bifolds usually falls under Permitted Development. Check with your local planning authority for conservation areas and listed buildings. Building Regulations approval always applies.
Finish It Your Way
Hardware, add-ons and cill and threshold options, all specified with your quote.
Matching handles
White, Black, Anthracite Grey or Chrome to suit your frame colour.
Traffic door
A single opening leaf for everyday access, on any configuration.
Georgian bars
Internal bar grids for a traditional look on a modern profile.
Integral blinds
Sealed between the panes — no dust, no cleaning, no cords.
Trickle vents
Background ventilation for Part F without spoiling the frame lines.
Cills
90, 150, 180, 230 or 250mm to suit your wall depth.
Thresholds
Standard, or 20mm / 20mm with rebate.
Head add-ons
20mm and 38mm head extensions to make up the opening.
Aluminium Bifold Doors — popular delivery areas
Made in our Leeds factory in 2–10 working days and delivered on our own fleet nationwide. Pick your area for local details.
BasingstokeAluminium Bifold DoorsHampshire
BristolAluminium Bifold DoorsBristol
CardiffAluminium Bifold DoorsSouth Glamorgan
DerbyAluminium Bifold DoorsDerbyshire
DundeeAluminium Bifold DoorsAngus
East LondonAluminium Bifold DoorsGreater London
EdinburghAluminium Bifold DoorsMidlothian
IpswichAluminium Bifold DoorsSuffolk
ManchesterAluminium Bifold DoorsGreater Manchester
NorwichAluminium Bifold DoorsNorfolk
ReadingAluminium Bifold DoorsBerkshire
South LondonAluminium Bifold DoorsGreater London
SouthamptonAluminium Bifold DoorsHampshire
WarringtonAluminium Bifold DoorsCheshire
WatfordAluminium Bifold DoorsHertfordshire
Photos: Basingstoke by Lewis Hulbert, CC BY-SA 3.0 · Bristol by Chris Lathom-Sharp, CC BY-SA 4.0 · Cardiff by Chris Morgan, CC BY-SA 2.0 · Dundee by Colin Smith, CC BY-SA 2.0 · East London by Hjamesberglen, CC BY-SA 4.0 · Edinburgh by Andrew Colin, CC BY 2.0 · Ipswich by Velvet, CC BY-SA 3.0 · Manchester by David Dixon, CC BY-SA 2.0 · Norwich by Tanya Dedyukhina, CC BY 3.0 · Reading by Smuconlaw., CC BY-SA 4.0 · South London by Robert Dimov, CC BY-SA 3.0 · Southampton by Alex Wright, CC BY-SA 3.0 · Warrington by Reading Tom, CC BY 2.0 · Watford, CC BY-SA 2.0
Frequently Asked Questions
Everything you need to know about our bifold doors — pricing, sizes, lead times and more.
Ready to Get Started?
Whether you're a trade installer or a homeowner, we have the right solution for your bifold doors project.
Trade Installers
Volume pricing, dedicated account management, and the UK's fastest lead times. Join hundreds of trade installers who trust Mazuli.
Homeowners
Factory-direct quality at prices that undercut national brands. Get a personalised quote with no hidden extras — it's as easy as sending us your measurements.
Known for being one of the leading manufacturers of aluminium systems for the architecture and industry sectors in Europe.
Bifold Doors technical documents
Technical sheets, configuration and installation guides and the product brochure are sent on request, so you get the current version for your specification.
- Bifold Doors Technical Sheet
- Configuration Guide
- Installation Guide
- Product Brochure





