Roller shutters · outside the glass Shut it up
at night.

Insulated aluminium slats in a guide either side, rolling down on the outside of the glass. Four things at once: dark, quiet, warmer, and closed.

R/100By enquiry

Ask about shutters

R/100

The only shading that works before the sun reaches the glass

Outside, which is where it counts

A shutter stops the sun before it has touched the glazing. Nothing fitted indoors can do that — by the time light is inside, the heat is already in the room. In July that is the whole argument.

Foam-filled slats, not hollow ones

Each slat is a rolled aluminium shell filled with foam. That is what makes the difference between a shutter that rattles and one that quiets a room facing a street — and it is where most of the winter insulation comes from.

Properly dark

Down, with the slats closed, a room goes dark enough to sleep in at four in the afternoon. Blinds and curtains do not do this; they dim.

The specification

What it is made of

Figures being confirmed with the supplier

Slat: Roll-formed aluminium, foam-filled
Box: Surface or built-in — to be confirmed
Guides: Aluminium, brush-lined
Finish: Powder-coated, any RAL
Drive: Tubular motor, remote; manual crank optional
Control: Remote, timer and app
Max size: Per opening — to be confirmed
Safety: Obstacle detection on the motorised version

Where it fits

When a shutter is the right answer

Good fit

A bedroom that faces east and wakes you at five in June.
A room on a street, where noise is as much the problem as light.
A house left empty for weeks at a time.
A west-facing wall of glass that makes the room unusable from four o'clock.

Look at something else

You want shade while still seeing out — that is a screen or under-roof shading.
The opening is a glass roof. A shutter needs two vertical guides, and a roof has none.
There is no room above the opening for the box and nothing to fix the guides to.

Getting one

Send us the openings

Shutters are priced per opening, and most houses need several at once. Send a list — rough width and height for each, and a photograph of a typical one — and we come back with a price for the set rather than a figure per unit that turns out to be per unit plus fitting.

Under-roof shading is the one system you can configure and buy online today. Shutters are quoted as a set.

Ask about shutters

Write to info@luwenzo.com or call +32 3 000 00 00.

Ask us

Before you ask

The questions we get

Will it actually make the room warmer?
In winter, yes — a closed shutter traps a layer of still air against the glass, which is the same thing that makes double glazing and our honeycomb fabric work. It is the cheapest thing you can do to a cold single-glazed window short of replacing it.
Does it help in summer?
More than anything fitted inside. Stopping the sun outside the glass keeps the heat out of the room entirely, rather than absorbing it once it is already in. That is simple physics and it is why external shading wins on a south wall.
What if the power goes?
Motorised shutters take a manual override — a crank or a release, depending on the motor — so a shutter is never stuck down. We specify it as standard on anything covering a door.
Can I have them on a veranda?
On the vertical sides, yes, and they are a good answer for a west-facing one. Not on the roof itself: a shutter needs a guide down each side and a glass roof gives it nowhere to run.