• Patented Liniar hardware is designed to work in perfect harmony with the dedicated range of energy efficient profiles, whilst remaining neatly concealed out of sight.
  • 24mm low aluminium threshold option removes the usual trip hazard associated with other bi-folds on the market, making our doors perfectly suited as an internal room divider. An optional threshold tray is also available, creating an easy access ramp for wheelchair users.
  • From a 2 meter, two pane Patio door replacement to an impressive 6 metre, seven pane veranda opening, our doors can enhance the feeling of space in your home like nothing else.
basalt colour option for Bay Windows from Middleton Glass
black colour option for Bay Windows from Middleton Glass
burgundy colour option for Bay Windows from Middleton Glass
cedarwood colour option for Bay Windows from Middleton Glass
chartwell green colour option for Bay Windows from Middleton Glass
Cream colour option for Bay Windows from Middleton Glass
Dark Blue colour option for Bay Windows from Middleton Glass
Dark Green colour option for Bay Windows from Middleton Glass
Dark Grey colour option for Bay Windows from Middleton Glass
Dark Red colour option for Bay Windows from Middleton Glass
Golden Oak colour option for Bay Windows from Middleton Glass
Grained Anthracite colour option for Bay Windows from Middleton Glass
Irish Oak colour option for Bay Windows from Middleton Glass
Light Grey colour option for Bay Windows from Middleton Glass
Mahogany colour option for Bay Windows from Middleton Glass
Rosewood colour option for Bay Windows from Middleton Glass
White colour option for Bay Windows from Middleton Glass
Arctic Glass option for Bay Windows from Middleton Glass
Autumn glass option for Bay Windows from Middleton Glass
Chantilly glass option for Bay Windows from Middleton Glass
Charcoal stick glass option for Bay Windows from Middleton Glass
Contora Glass option for Bay Windows from Middleton Glass
Cotswold glass option for Bay Windows from Middleton Glass
Digital glass option for Bay Windows from Middleton Glass
Everglade glass option for Bay Windows from Middleton Glass
Flemish glass option for Bay Windows from Middleton Glass
Florielle glass option for Bay Windows from Middleton Glass
Mayflower glass option for Bay Windows from Middleton Glass
Minster glass option for Bay Windows from Middleton Glass
Oak glass option for Bay Windows from Middleton Glass
Pelerine option for Bay Windows from Middleton Glass
Stippolyte glass option for Bay Windows from Middleton Glass
Sycamore glass option for Bay Windows from Middleton Glass
Taffeta glass option for Bay Windows from Middleton Glass
Warwick glass option for Bay Windows from Middleton Glass

Liniar Bi-fold Doors


Our Liniar Bi-fold doors have been designed from the ground-up to be truly market leading. They are the first product of their kind to be regarded as a genuine alternative to the long-standing aluminium systems.

Slim Sight Lines


Slimmer frames mean less uPVC, more glass and more natural light.

No Keeps Necessary


Shootbolt locks ensure the doors are bolted firmly into the stainless steel track, maximising security and removing the need for keeps.

Concealed Hardware


In-board mounted stainless steel track conceals hardware so only the hinge knuckles are visible when the door is closed.

Environmentally Friendly


100% lead free, our innovative Bi-fold doors are exceptionally environmentally friendly.