Adjustable Mullion
On site adjustment made possible
High Security Locking
High security locks as standard for added peace of mind.
Two Thresholds available
We offer a range of thresholds.
Sleek Design
Slimline Frames with incredible strength.
Unlimited Colour
Our Specialist Frame aluminium bi-folding door range is available in any RAL colour and can be dual-coloured to allow you to match the inside facing frame to complement your interior décor whilst the outside of the frame remains in-keeping with the exterior of the property.

LET'S THINK ABOUT THE ENVIRONMENT.
At Specialist Frame, we want to ensure the Aluminium Bi-folds are of highest quality and eco-friendly design. Our Aluminium Bi-folding doors come with a U-value of 1.5
(lower the better) with standard double glazing and are tested up to 300 pascals
for water tightness. They are also tested up to 800 pascals
for wind-load with the additional option of adding a double weather seal.
Under these conditions, we can ensure that Specialist Frame Aluminium Bi-Folds are designed to be as eco-friendly as possible.
With an incredible strength to weight ratio, Aluminium is a desired material for its mechanical and thermal properties.
Aluminium Bi-folds are chosen to enhance the elegance of your house.
Due to their concertina design, Aluminium Bi-fold doors are the perfect choice for homeowners who wish to create a real feeling of space in their home without losing out on the living room.
The aluminium construction makes our bi-folding doors strong, hard-wearing
and
low maintenance.
Features & Benefits
Multipoint locking system that is both police and insurance approved; ensuring the security of your home.
Can be manufactured in a
variety of colours.
Fitted 3 star anti-snap cylinders as standard.
Low threshold tracks available.
Advanced performance.
Weather tested to be
robust in highly demanding environments.
Secure and strong.
Factory tested and assembled
ADJUSTABLE MULLION- on site adjustment possible