Slimline Aluminium Bifold Doors

With a frame width of only 55mm, our NW1 slimline aluminium folding doors offer incredibly slim sightlines

NW1 slimline aluminium bifolding doors are expertly manufactured at our London facility to the highest standards. Using premium grade aluminium, we hand finish each set of doors to your exact standards and specifications. Due to their incredible strength, our doors are amongst the slimmest available in the UK – the NW1 frames are just 55mm wide creating a sightline of just 120mm, ensuring you make the most of the natural light and the outside views – even when the door panels are fully closed. 

Bespoke Slimline Aluminium Bifolding Doors

Available with a wide selection of colour options, accessories, hardware, glazing, sizes and configurations, our NW1 slimline aluminium bifolding door system is sure to meet almost any requirements or tastes, and prove to be a popular choice for hundreds of domestic and commercial properties throughout the UK. In addition, NOW Aluminium bifolding doors can be manufactured up to 3m in height (many profiles cannot reach any higher than 2.4m) with each panel width up to 1.2m ensuring you can create a signature statement for your new home or extension project. 


Patio Doors, French Doors and Single Entrance Doors

The NW1 Bifolding Door system is extremely flexible. It is available in a wide range of panels and configurations operating as a folding door, stacking to the side. However, it is also available as a traditional patio door/french door, or even a single door if required. Simply enter these preferences into the online bifolding door quote builder and you will be able to get a price immediately. If you need any help, then feel free to call one of our helpful sales advisers who will be happy to help.

NOW Bifolding Door Features at a Glance​

  • Ultra slim sight lines of just 120mm
  • 55mm frame width
  • Panel height up to 3m (3000mm)
  • Low Threshold Option
  • Order to delivery timescales from 2 weeks
  • Thermal Break for superior insulation
  • Ultion** locking system as standard (upgrade to Ultion*** available for just £40 extra)
  • High Performance Weatherseals
  • High-performance Panitherm Double Glazing
  • Choose your door configuration
  • Traffic door option available
  • Manufactured using premium Alunet profile
  • Available in ANY RAL colour
  • Available in dual colours (contrasting interior and exterior colours
  • High security locking on traffic doors and intermediate door sashes
  • Choose whether doors fold inwards or outwards and slide left or right
  • 10 Year Guarantee

*For a deeper insight into our bifolding door sizes and specifications, cross section drawings, maintenance guide and fitting guide visit our downloads section

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Premium Aluminium Folding Doors

Now NW1 aluminium folding doors are created using the class-leading Alunet slimline aluminium profile. Alunet have developed a reputation across Europe as one of the most revered profile manufacturers. They offer premium product quality, smoothness of operation and reliability both in the home and commercially. When you purchase a Now door, you can be sure that you are buying a premium brand that looks and feels fantastic. Why not get an instant online quotation today with prices starting from just £520 per

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aluminium bifolding doors specification

Security & Locking

NW1 aluminium bi-folding doors come with multi-point locking bolts as standard and are PAS 24 Security rated. When fully closed, all aspects of the locking mechanism, door hinges and stainless-steel running gear are fully hidden, eliminating access to any intruder or anyone looking to gain access by forcing the structure of the door.

Ultion** Locks

NW1 aluminium bi-folding doors come with Ultion as standard. This high security system is 23% denser than iron to prevent drilling, twisting or crushing, and the clever design prevents ‘lock snapping’. Find out more on the Ultion Website. You can upgrade to The Ultion*** system for just £40 

Fully Integrated Trickle Vent Option

On order to conform to building regulations, most bifolding doors now require trickle vents which allow for continuous ventilation of fresh air throughout the room. Our optional trickle vents are tastefully fitted to the top of the door frame ensuring easy access yet aesthetic discretion.

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Energy Efficient Thermal Glazing

All Now NW1 bifold doors are fitted with high-performance 4mm A+ rated PLANITHERM glass as standard, which delivers incredible thermal and sound insulation. With a u-value of just 1.4, our argon gas-filled glazing systems keep your home cool in the summer months and retain the heat in the winter. Whilst our standard glazing meets or exceeds most people’s requirements, we can offer alternative options if necessary or supply the units completely unglazed. Our glazed online quotations are based on Planitherm Energy Standard Glazing however for those with more demanding UV, security, acoustic or energy requirements, we can also offer Planitherm Comfort and Planitherm Comfort Plus.

Choose from any RAL colour

Now NW1 Aluminium concertina doors are available in over 200 RAL powder paint finishes. However, most choose from our standard bifold door colours – anthracite grey, black or white. Adding an extra level of customisation, our doors can also be supplied with a dual colour finish. This allows you to choose contrasting external and internal colours to perfectly match the inside and outside of the property. Feel free to get in touch if you have any specific non-standard requirements as we can usually accommodate most requirements.

Click HERE to see a wide selection of our RAL Colours

RAL colour options by NOW Aluminium

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Choice of Standard or Low Threshold

Whilst available with a weathered threshold, the NW1 is also available as a low threshold option. This provides flush floor levels between two spaces by sinking the threshold into the floor and seamlessly transitioning between the two areas. This not only serves to create a modern, simple aesthetic but also ideal for allowing easy disabled access – for example, when travelling between a new kitchen extension and an outside patio. 

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