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Sunflex Bifold Doors from WindowWorx

Our premium bifold doors are manufactured using high end aluminium in the Sunflex UK factory. Guaranteeing remarkable quality for every Sunflex door system installed by WindowWorx. Configured with a functional concertina opening style that provides you with an additional entryway, large enough to allow you to enjoy extended views and a fresh summer breeze. Blending your home and garden seamlessly with large panels of toughened glazing and exceptionally slim sightlines.

Superior Sunflex Aluminium Bifold Door Systems

At WindowWorx we offer three fantastic aluminium bifold door systems from Sunflex. Each system boasts its own range of excellent benefits including thermal efficiency, home protection and attractive aesthetics.

  • SF55i: Boasts sightlines as slim as 55mm and is suited to standard configurations.
  • SF55s: Offers sightlines as slim as 55mm and can be designed with more complex features and configurations.
  • SF75: Available with 75mm slim sightlines and enhanced triple glazing to achieve Passivhaus status.

All three door systems are frequently tested to ensure they exceed British industry standards.

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Timber Clad Aluminium Bifold Door Systems

Here at WindowWorx we also offer Sunflex’s timber clad aluminium bifold doors. These doors offer the natural beauty of heritage timber on the internal door whilst remaining low maintenance aluminium on the exterior. We offer our timber clad bifold doors in two excellent variations.

  • SF55C: Offering sightlines as slim as 118mm, featuring double glazing as standard.
  • SF75C: Boasting 118mm sightlines with advanced triple glazing.

We regularly test both door systems to ensure they surpass British industry standards for security and energy efficiency.

Aluminium Corner Bifold Doors

The Sunflex corner bifolds are able to offer homeowners a large bespoke entryway that can be enjoyed all year round. When your corner bifold doors are closed you can enjoy uninterrupted views of your garden through large panes of toughened glass. However, there is no compromise on thermal performance. You’ll receive U-values as low as 0.8 W/m2k so you can enjoy the aesthetics of the outdoors from the comfort of your home.

Available in a variety of configurations you can make your corner bifold door bespoke to your living space. Whether you need your doors at a 90°, 135° or completely unique angle, our expert team of installers can assist you.

You can have your corner bifolds in either the SF55 or SF75 configurations, including our timber clad bifold door designs.

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Curved Aluminium Bifold Doors

For a statement centrepiece, you could opt for Sunflex’s curved aluminium bifold door. Offering a striking appearance to any property. You’ll get to select whether you want your replacement door to curve inwards or outwards depending on the space you’re working with. If you aren’t sure what works best for your home, simply ask our friendly team who are able to assist you. You’re able to have your curved bifold door in either aluminium or timber aluminium clad depending on your individual preferences.

For a truly bespoke design, you’re able to select your curved bifold doors opening style. Although doors opening to the right or left is extremely popular we do offer the opportunity for your set of bifold doors to open and close from the centre.

Bespoke Bifold Doors That Complement Your Home

All our bifold doors are made to measure exactly to your specifications. Regardless of what you’re looking for, we’re sure to have a configuration and style that exceeds your expectations.

We offer our bifold doors in over 200 unique powder coated colours, that provide long lasting aesthetics. You’ll also have the choice of dual colour options so your interior and exterior frames can be different.


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Accessible Threshold Options

Sunflex bifold doors can be manufactured with two threshold options depending on your personal requirements.

A single rebated low threshold creates a smooth transition between your home and garden. This is the perfect option for homeowners needing better accessibility, for example, wheelchair users, elderly individuals, children and pet owners.

A double rebated weathered threshold offers unbeaten weather protection. Featuring a 35mm upstand against the frames of the door seal. They can be finished with or without a sill to customise your door further.

Key Features Of A Sunflex Bifold Door

  • Advanced home security with Secured by Design multi point locking systems that are PAS 24:2016 compliant.
  • Fully weather tested including water tightness and air permeability checks.
  • Achieving U-values as low as 0.8 W/m2k to remain thermally efficient all year round.
  • The SF75 door system is available with enhanced triple glazing, for maximum thermal performance and noise reduction.
  • Flood your home with natural light: door panels can be as large as 1.2m.
  • A variety of track options to choose from including low threshold and weathered tracks.
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