Aluminium Bi Folding Doors / Folding Concertina Doors

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  • Smooth operation & sliding function
  • 2-7 pane system for versatility
  • High security multipoint locking
  • Increases natural light and ventilation
  • Manufactured to ISO9000 Standard
  • Warm and secure

Bi-folding doors also known as folding concertina doors are the latest, stylish alternative to French doors or Patio doors. They can be fitted to conservatories, patio doors, roof gardens, balconies and extensions. The 2 to 7 pane systems allow for greater versatility and with a wider opening area than Patio doors or French doors it increases your natural light and ventilation.

When fully closed the doors benefit from all-round multipoint locking and sealing, protecting from both the elements and intruders. Operation is simplicity itself with one master leaf and a combination of slave leafs, all travelling smoothly on 4-wheeled runners. It's when opened fully that the real benefits of the door can be appreciated. The doors "concertina" back on themselves providing a real sense of bringing the outdoors indoors - perfect for relaxing on summer days or summer nights.


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Bi Folding Doors opening options & Locking System
Bi Folding Options Bi Folding Lock

Bi Folding Door Options

Bi Folding Door Colour Options

You have a choice of over 100 RAL Colours. Wood effect finish available.

Colour Options

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Click here to get an instant quote for double glazed windows, doors, conservatories, orangeries, rooflines and garage conversions.

Lowest Price Guarantee!

If within 7 days of placing your order, you find a lower price for the same specifications and guarantees, EYG will refund the difference.

10 Year Guarantee

EYG will replace faulty material free of charge, should any defect appear in our products within 10 years excluding hardwood which is subject to conditions on contract.

EYG Energy

At EYG, we use EcoSpec frames, the first ever PVC-U frame offering you a greener option...

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*these discounts supersede all other offers and applies at point of sale