Bi-Fold Doors…header_logo


Ultra Slim Design


Open in or Out


Energy Efficient


Seamless Threshold


Maximum Sight Lines


Many Colours Available

Extend your home into your garden with TWS Bi-Fold Doors

The perfect solution.

If you’re considering new doors for a Conservatory or an Orangery or you want to open up your living room to the garden, TWS Ultra Slim Aluminium Bi-fold Doors offer the ultimate solution.

This ingenious system that allows the largest aperture (up to 10 metres wide) and will change the relationship between the interior and exterior of your home by making alfresco space available with the minimum of effort.

With equal sight lines between the glass (totalling 100mm), there is no ‘floating mullion’ as with other systems thus maximising the view and contemporary look. Unrivalled thermal properties together with strength and durability create the Ultimate Folding Door.

French Doors


  • Sash Width : 50mm (100mm sight lines)
  • Sash Thickness : 58mm (Sash Stacking Depth)
  • Maximum Opening Width : 10 Metres
  • Panel Height Range : 1 Metre to 3 Metres
  • Panel Width Range : 550mm – 1100mm
  • U-Value of 1.6 to 1.3 achieving an ’A’ Rating
  • Over 250 colours in 3 choices of finishes available

Bi-Fold Benefits…

The TWS ultra slim system has equal sight lines of 100mm, and is an innovation that has been developed to meet requirements for a contemporary design.  Ultra slim sight lines between the glass and the square beading optimise the contempary look as well as maximising the lighter more airy feel.

All our profiles are powder coated aluminium, with a range of TWS standard Ral colours and exclusive colour coded hardware and gaskets.  We also offer an extensive range of non standard Ral colours to choose from.

Hinges and finger safe gaskets keep vertical sight lines that give an enhanced aesthetically pleasing appearance, and our nylon coated shoot bolt locking system creates an effortless smooth action.

All our doors are supplied with an anodised flush track as standard, which blends the inside floor with the outside, thus giving a higher resistance to scratches and marks.

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Extending your home? Then you should consider a TWS Garden Room.
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A uniquely designed conservatory from TWS can truly revitalise your home. Read more…