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Air Bifold Doors

At Harefield Property Improvement's we specialise and take pride and all our Air Bi-fold doors are quite simply the Rolls Royce of large aluminium doors. Our innovative Bi-fold doors are designed to allow quick, easy access to your garden by neatly folding in on themselves, creating a wonderful feeling of freedom and space that will really open up your room. The large glass panes allow the perfect view when the doors are closed, letting in plenty of light while allowing you to stay warm, dry and secure.

We offer a range of contemporary designs to perfectly suit the style of your home, all made to measure and individually tailored with the following benefits :

  • Designed with great care the door features a multipoint locking system as standard with high security locking cylinder and shoot bolts.
  • Fitted with an internal glazing bead and toughened safety glass as standard for maximum security and protection.
  • Comprehensive long-term guarantees.
  • Multiple weather seal provides excellent protection.
  • Sets of four stainless steel wheels provide smooth operation
  • Lockable pop-out handle fits flush to allow the doors to stack tightly together when open.
  • All our Harefield products can be matched to our Aluminium windows, entrance doors and patio doors.
  • All our doors can be tailored to match your individual property requirements.

Engineered for high performance

Exclusively manufactured by Harefield Improvements, air 800 bi-fold doors can accommodate glass panels as large as 3 meters tall and can be configured with up to 10 frames. This allows you to enjoy captivating and expansive views. With some of the most slimline frames on the market, at only 108mm, our Air 800 bi-fold doors give you more view and less frame. air bi-fold doors also offer the design flexibility of opening either inwards or outwards because they are created with precise engineering. This means you can have whatever design suits your space and taste.

Endless Configurations

Our Air Bi-Fold Door system can create more than 200 door configurations and is available in a choice of thousands of colours. The design possibilities are almost endless, meaning you can create a truly unique look and feel to your space that is complete bespoke to you and your home. These bi-fold doors come with a 25-year guarantee so you can trust they are built to last and will withstand the usage from everyday life. Whatever design or building you’re looking to create, Air 800 Bi-Fold Doors can create it with style.


Air Bi-Fold Door Gallery


Colour Options

Air 800 Bi-Fold Doors are available in any RAL colour and come with the additional option to add an aïrcoat textured paint finish. This creates a hardy scratch and dirt resistant surface to keep your bi-fold doors looking as good as new for as long as possible. There is also the option of dual-colour frames with the Air 800 bi-fold doors meaning your internal facing frame can be a colour to match your décor whilst the exterior frame can remain in-keeping with the exterior of your property.


Ultion Security

Air 800 Bi-Fold Doors come certified by UKAS with the PAS 24 accreditation. This means your new doors will be compliant with the latest requirements for enhanced security giving you complete peace of mind. Harefield Improvements also offers additional security features such as locking and hinges which will further increase the security of your new door system. The Secure Diamond 3 star Ultion lock comes with 11-pin which enter a lock down mode when it detects attack. Please ask one of our customer service team for more information.