BF 73

The BF73 System


With its efficient thermal performance and slim sight lines, Alutech’s BF73 System of Single Doors, French Doors and Bifolding Doors, for commercial or residential use, stands out from competition. What is more, this System has finally taken away the headache of having to stock multiple systems by offering fabricators one system that caters for all door styles! Below you will find some of the main benefits and characteristics of this outstandingly durable and reliable system.


Modern Design

Our BF73 Bifolds are designed with slim profile sections that minimise visible framework while maximising the glass area, ensuring panoramic outside views all year long! In fact, with its 120mm Super Slim sightline, our BF73 System is slimmer than 68% of bifold systems on the market.



Our Bifolding and French Doors are available in a wide range of RAL colours for a completely bespoke design, that will beautifully complement your house. Additionally, dual colours are available, giving you the option of matching your doors with the interior design of your home as well as your house façade.

Powder-coated finish options are available on both single and dual colours. The main benefit of powder coating is that it can produce a thicker layer of coverage in comparison with conventional liquid coatings, without running nor sagging, for a longer-lasting effect.


Low Threshold

Our thermally broken, 20 mm low threshold option doesn’t only help prevent trip hazards, but it also creates a flushed look, seamlessly transitioning an interior space to the outside. An optional low threshold rebate is also available upon request.


Floating Corner

The floating corner post option will enable the doors to open out fully, offering an open area much larger than usual and bringing that ultimate wow factor to the end user.



Alutech Group as standard have a 10-year warranty on factory powder coating and hardware. Copy certification is available upon request.


As the sole UK distributor for one of the largest extruders of aluminium systems in the world, we pride ourselves in providing outstanding design and specification to make our products stand out from competition. The Alutech BF73 System is designed for the aesthetics and insulation requirements of your home or business.

For more information on our BF73 Door System, please get in touch with our friendly sales team on 01924 350110 or and discover how Alutech Systems can benefit you.

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