Choose any RAL colour
Secured by Design available
Weather tested to BS6375 Part 1
Integral blinds available
Slim-line profile

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Design your own

Our Aluminium Bi-Fold Doors offer durability and efficiency. Aluminium is a naturally strong material and requires very little maintenance. Designed to give strength, we can guarantee a structurally sound product made to last a lifetime.

Beautifully designed, our Aluminium Bi-Fold Doors provide long-lasting quality and endurance. There is a large range of door configurations ranging from 2 panels to 8 panels with square or rounded edge profile options that you can choose from.

Like all our Welglaze products, there is a 10-year guarantee. Download our guarantee PDF to find out more.

Our Aluminium Bi-Fold Doors are available in a range of standard powder coat colours and finishes. There is also the option to choose a colour from our ‘Sensations’ range – a range which offers a unique finish to the bi-folding doors, that is sure to make a statement.

Grey Aluminium RAL 9007
Jet Black RAL 9005
Oyster White RAL 1013
Graphite Black RAL 9011
Pure White RAL 9001
Steel Blue RAL 5011
Light Blue RAL 5012
Nut Brown RAL 8011
Claret Violet RAL 4004
Pearl Blackberry RAL 4012
Patina Green RAL 6000
Slate Grey RAL 7015
Black Red RAL 3007
Black Green RAL 6012
Black Blue RAL 5004

Our aluminium bi-folding doors are available in an array of 'off the shelf' standard powder coat colours and finishes.

Key Features

Standard Lever Handle
Integral Blinds
Magnetic Catch
D Handle
Intermediate Shootbolt Locking Handle
Trickle Vents
Curved Sashes (Square Sashes also available)
Stainless Steel Rollers

Hardware Colours

Satin Chrome
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Product Overview

Sliding Facility

Our Aluminium Bi-Folding Doors effortlessly glide due to their smooth contours and curved clean lines. Whatever your client’s style or taste, this door will create an attractive aesthetic and compliment any property.

Secured by Design

With our Aluminium Bi-Folding Door, you can request Secured by Design (SBD). With SBD, residents can rest assured that their home has great protection. Focusing on crime prevention of homes and commercial premises, SBD promotes the use of security standards for a wide range of applications.

SBD is not standard with Aluminium Bi-Folding Doors and you must request this as part of your door specification before moving forward.


Our Aluminium Bi-Folding Doors carry 28mm double glazed units. The door’s thermal performance as glass generally accounts for 80% of the surface area of the doors, and that’s why glass specification is key. Incorporating soft coat toughened safety glass is standard.

Energy Efficient

Using the best technology, we can assure you that our Aluminium Bi-Folding Doors are energy efficient and will make residents feel comfortable in their home, reducing draughts and blocking out the cold air. Including multiple rigid rubber seals, all of our bi-folding door systems utilise the latest polyamide thermal barrier technology.


Key Measurements


Profile Depth – 70mm
Profile Width – 102.5mm
Typical Sightlines – 132mm
Sill Height – 25mm
Sill Options – 85, 150, 190, 225mm
Standard Threshold Height Internal – 51.5mm
Standard Threshold Height External – 31mm
Low Aluminium Threshold Height – 20mm


Max Panel Width – 1050mm
Max Panel Height – 2500mm

Technical Documents

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