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That fit your house perfectly 

The KL Window Doctor Bi-Folding Door is one of our range of the finest quality home improvement products. An attractive and expertly crafted and finished door system, manufactured from premium grade aluminium for superior strength. Ultra slim sightlines and intelligent design ensure the maximum glazed area. With ultra smooth, efficient, quiet and flawless trouble free operation.

Engineered for ease of installation, with an innovative, sophisticated and unique gasket design for ease of glazing and the ulimate in weather performance

It is a thermally broken system ensuring it meets the highest energy ratings, and uses high quality components to ensure long lasting hassle free durability.

All finished off in the highest quality and ultimate durability powder coating, in a complete range of RAL colours and finishes, including textured finishes and dual colour.

This all means it ticks all the boxes and makes it the market leading bifold door exclusively sold to the trade.


  • Full range of configurations available

  • Ultra smooth running and glide

  • Intelligently designed slim carriage adjustable rollers with 6 wheels

  • Half rollers available for even panel number configurations.

  • Ultra slim and durable frame and sash

  • Square or Curved Sash options

  • Square or Bevelled beads

  • Internally beaded for security

  • Adjustable and slim line hinges give unbroken gasket sight lines

  • Advanced weather tight seals

  • Open In and Open Out options

  • Complete range of RAL colours inc. both smooth and unique textured finishes

  • Dual RAL colour options

  • “Master” doors with multi-point security locking

  • Intermediate doors with security cylinder locking options

  • Up to 8 panels

  • Up to 9 metres in width

  • Glazing thickness from 10-40mm

  • PAS24 Security and Document Q compliant options

  • Range of hardware colours and finishes, inc colour coded

  • Unlike some other systems the master door handles do not overlap the bead

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