Bi-Folding Doors

Products > Bi-Folding Doors


SRL Ltd’s bi-folding doors are made from Senior Architectural Systems and Smart Systems aluminium ranges, which ensure durability in all kinds of weather, long life, a modern look and high heat and sound insulation levels. SRL can offer aluminium bi-fold doors up to 4 metres high in any combination, which few companies can match.

SRL Aluminium Bi-folding Doors Features:

  • 70mm slim-line frame profile; just 60mm wide vent profile.
  • Up to 6 metres wide as standard. (if you require wider widths please contact our office)
  • Floating sliding mullions provide stability for easy glide operation.
  • Polyamide thermally-broken aluminium profile.
  • Multipoint security locking on main door and shoot bolt locking on intermediate stiles.
  • 32mm internally glazed sealed units, for increased security.
  • Virtually maintenance free.
  • All doors are made to measure.
  • Tested to PAS24:2012 Enhanced Security, BS6375 Part 1 Weather, BS6375 Part 2 Operation & Strength, BS6375 Part 3 Annex A. Exact performance varies depending on the configuration. Please contact our Technical Department for further information
  • Able to receive double or triple glazing up to 48mm for maximum thermal and acoustic performance
  • U-Values as low as 1.19 W/m2K when calculated as a CEN Standard door

Optional Features:

  • Aluminium Bi-fold doors can open-in or open-out.
  • Standard frame or low threshold and various sill options.
  • Wide scale of RAL and BS powder coating finishes; anodised and polished finishes available.
  • Single and dual colours available.
  • Glazing – choice of toughened, laminated, anti-sun, Georgian grill or unglazed etc.
  • Choose from a choice of colours for handles and spacer bars.
  • Slides left or right, or split to fold left and right on opening.
  • 3, 4, 5, 6 and 8 panels with various opening options as standard.


Visofold is a unique slide-and- fold dual-hollow aluminium system. The doors which sit in a rebated frame have an external curved shape with internal beading. Bottom wheels and top glider are safely concealed within a dedicated floating mullion with the door leafs being joined by a butt type knuckle hinge. Visofold doors are suitable for domestic and light, medium and heavy-duty commercial applications.




Pure Door Systems
Ali FOLD Folding Sliding Door Datasheet
Ali FOLD Single Double Door Datasheet

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