bi-FOLD Windows

Bi-fold doors can be an excellent way to completely transform your home, and provide it with an exceptional entrance to the beautiful garden area. These doors can help you create an inviting and open terrace-like feel to the home. Bi-fold doors can blur the line between your garden and home to provide you with a real holiday experience.

Although these doors are perfect for the summer season, it does not mean you have to compromise during the winter months. These doors are very energy efficient, and make sure your home is warm and cosy during the winter months while saving you money on your energy bills. With double glazed energy efficient materials, such as aluminium, hardwood or UPVC frames, you won’t have to worry about heat loss.

Our company has always given priority to the security of homeowners. Therefore, we only use toughened glass with properly sealed units to keep your home secure.


Benefits of Our Bi-Fold Doors

  • With bi-fold doors, you have the choice to open just one door or fold out your doors to create an open, wide exit. These doors give you more flexibility when it comes to entering your garden and entertaining.
  • Our company’s bi-fold doors are customised according to your specific needs and requirements. Our doors can be adapted to suit your home. These doors are also excellent as replacement for your existing patio doors. They are the perfect choice for an elegant makeover. Since these doors are primarily window based, they can make your room seem larger.
  • Acorn Glassline even offers a wide range of finishes and frames. Bi-fold doors can easily fit all kinds of homes, including traditional and modern. These doors provide an exceptional view of your garden throughout the year.
  • Our high quality materials and excellent craftsmanship can enhance the aesthetic appeal of your home.
  • Our company has always been proud of our excellent construction, installation and high quality materials. Therefore, we offer a solid 10 year guarantee on our products and you will always be assured of long lasting products from our company.
  • Slim sightlines
  • Flush track option
  • High performance weatherseals
  • Internally glazed
  • 28mm Argon filled toughened double glazing providing overall 1.3 u-value
  • 40mm Triple glazing option provides 1.0 u-value
  • Choice of 30 wood grain colours including green, anthracite grey, black and cream
  • Secured By Design high security locking
  • Thermally efficient profiles
  • Concealed gearing and hinges
  • Optional integrated blinds
  • Document Q upgrade available for most designs

If you would like some free advice, have any questions, or would like to visit our factory please call us

Slim uPVC & Aluminium Bifold Doors

Imagine upvc/aluminium bi-fold doors offer a cost-effective folding door solution whilst still providing slim sight lines when compared to many other upvc systems.

Manufactured using high quality profiles our bi-fold door provides slim sight-lines and wide panels which make them a very popular choice for new build and renovation installations where cost is an important factor.

Our doors feature a choice of 3 thresholds with stainless steel rollers fitted to both top and bottom of sliding panels which ensures a smooth, easy opening and closing operation. For peace of mind hinge fixings and rollers are concealed when the door is closed with ERA high security shoot bolt and hook bolt locking systems fitted as standard.

Slim Sightlines with wider glass

UPVC bifold doors are available with panels of up to 1 metre wide allowing natural light to flood into the room.

This kitchen extension has a 4 panel Imagine door with anthracite grey foil on the outside and white inside with wide panels for maximum unspoilt views of the garden.  The traffic door on the left and the next panel are fitted with chrome handles for easy operation of the high security locking system.

Threshold options

There are 3 track options to choose from including a low threshold, rebated threshold for exposed locations and a room divider threshold which is only 15mm high offering the perfect solution for doors installed between the house and conservatory.

Energy Efficient 1.3 U-value

Our standard glazing is clear 28mm Argon gas filled Planitherm toughened double glazing which provides an overall 1.3 U-value.

Upgrades to 40mm triple glazing are also available that will increase the thermal efficiency of the door to an overall 1.0 U-value if required.

Solar control and self-cleaning glass are available at additional cost.


Optional Integrated Blinds

Integral blinds are a popular option with folding doors as they provide privacy and controllable shade from direct sunlight.

Available in a range of colours our venetian integral blinds are cord free and are controlled by magnetic sliding blocks on each side of the glass to raise, lower and tilt the blinds.

Extended Colour Range

upvc bifolding doors are available in standard white finish or a range of 30 different foiled wood grain finishes including traditional colours such as Rosewood and Light Oak, Green, Black, Anthracite Grey or white.

These superb wood grain finishes are available on the inside and outside of your door or you can specify a different colour on the inside making your door really bespoke to you.  Note that some colours will require an extended lead time.

Image shows a 4 panel anthracite grey bifold door split 3/1 with left hand traffic door and the remaining 3 panels folding sliding in the opposite direction.


Delivery Lead Times

Please note that lead times are shown as a guide for supply only doors and may be subject to seasonal variation.

Standard white finish10 – 15 working days
Standard woodgrain colours15 – 20 working days
Special woodgrain colours25 – 30 working days
Integral blinds30 – 40 working days

Product Guarantee

  • 10 year warranty against faulty manufacture
  • 10 year warranty for performance of double glazed sealed units(excludes breakage)
  • 10 year insurance backed warranty for our installation service

Our Promise

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