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4Moon Windows & Doors
Visofold aluminium bifold doors folded open on a brick extension

Smart Systems Visofold

Two slimline bifolds.
One right answer.

From the UK’s best-selling Visofold 1000 to the ultra-slim Visofold 6000 — made to measure and fitted by experienced installers.

Side by side

Visofold 1000 or 6000?

Visofold 1000 doors opening a kitchen to the garden

Visofold 1000

One of the best-selling folding door systems in the UK: slim sightlines, strong security and smooth everyday operation at a price that makes sense.

Sightline
approx. 122mm
Panels
up to 7
Panel size
1,200 × 2,500mm
U-value
from 1.4 W/m²K
Glazing
28mm double or triple
Security
PAS 24 upgrade available
Visofold 6000 slimline bifold doors facing a garden

Visofold 6000

The slimmest bifold in the Smart range — more glass, more daylight and clearer views, even when the doors are closed. Can take heritage glazing bars for a Crittall-style look.

Sightline
94mm
Panel size
1,000 × 2,200mm
Colours
200+ RAL, dual-colour
Thermal
polyamide thermal break
Security
PAS 24 & Secured by Design specifiable
Style
modern or heritage bars
Close-up of slim bifold door hardware

Designed around your home

Every door, made to your aperture.

You choose the number of panels, the folding direction, the threshold style and where the doors stack when open. Add a traffic door for daily use, and match or contrast the handles and hardware.

Our installers level, align and test every panel, so your doors run smoothly for years.

Questions

Good to know.

How is the Visofold 6000 different from the 1000?

Both share Smart Systems quality, but the 6000 has much slimmer profiles for larger glass areas. The trade-off is a slightly smaller maximum panel size — up to 1,000mm wide and 2,200mm tall.

Are Visofold doors energy efficient?

Yes. Every profile contains a polyamide thermal break. The Visofold 1000 achieves U-values as low as 1.4 W/m²K with suitable double glazing.

How secure are they?

Multi-point locking on the main sashes and shoot bolts on the floating mullions come as standard. Both systems can be upgraded to PAS 24; the 6000 can also be specified to Secured by Design.

Free design consultation

Tell us about your project.

No pressure, no obligation. We'll talk through proportion, profile, colour and glass, then arrange a survey if you'd like to go further.

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