01
Slim Aluminium Frames
Refined sightlines that keep the view open.
Cortizo Aluminium Bi-Fold Doors
Seamless Views.
More Living Space.
Slim sightlines and expansive glass open your home to the garden.
Secure by design
Made for your home
Low maintenance
Certass ApprovedA recognised standard of care
Insurance-Backed GuaranteeConfidence for your project · Backed by QANW
Professional InstallationA tidy finish, every time
01 · Cortizo bi-fold doors
Connect inside and out.
Cortizo aluminium bi-fold doors create a wide, flexible opening with slim frames, generous glass and a premium architectural finish.
- Slim aluminium sightlines
- Expansive glazed panels
- Smooth folding operation
- Thermally broken profile
- High-security locking
- Available in 2–7 pane configurations
02 · Feature highlights
Made for wider openings.
Explore the defining features behind a Cortizo aluminium bi-fold installation.
02
Large Glass Area
Expansive glazing for light and garden views.
03
Smooth Operation
Panels designed to fold and glide with ease.
04
Thermally Broken
A considered aluminium profile for thermal performance.
05
High Security
Secure locking and robust aluminium construction.
06
2–7 Pane Configurations
Flexible panel arrangements for different openings.
Plan your opening
Choose a starting configuration.
Explore panel and opening options in the next step.
03 · Colour range
Cortizo aluminium colours.
A representative selection of popular powder-coated aluminium finishes.
WhiteRAL 9016
Matt SilverRAL 9006
Anthracite GreyRAL 7016
Jet BlackRAL 9005
Slate GreyRAL 7022
Chocolate BrownRAL 8017
Olive GreenRAL 6003
Moss GreenRAL 6005
Steel BlueRAL 5011
BronzeRAL 1247
Textured BlackRAL 900STX
Textured GreyRAL 7016TX
04 · Glass options
Glazing options.
Complete the look with a considered glass option for privacy, light and character.
05 · Why choose JMD
Professional advice and installation.
Clear product guidance
Understand the styles, finishes and glazing choices available.
Careful installation
Your doors are planned and fitted with attention to the finish.
Support throughout
A straightforward point of contact from survey to completion.
06 · Customer feedback
What our customers say.
★★★★★
“Our bi-fold doors have transformed the room. They've opened up the back of our house and brought so much more light into the living space. The quality and finish are excellent.”
Mr Harris · Aluminium Bi-Fold Doors · Verified review★★★★★
“Couldn't be happier with the finished result. From the initial quotation through to installation, everything was handled professionally. The workmanship and attention to detail were excellent, and the new windows have made such a difference to our home.”
Mr & Mrs Taylor · Windows & Doors · Verified review★★★★★
“Fantastic service from a local company. The service felt personal from start to finish and the quality of the installation was excellent.”
Mr & Mrs Brown · Windows & Doors · Verified review07 · Further information
Take a closer look.
08 · Start with a conversation
Plan your aluminium bi-fold doors.
Talk to JMD Windows about the opening, panel arrangement, finish and glazing for your home.