Local Shutter InstallersMotors · Survey
Becker, Selve and Simu
Updated
Somfy is not the only tube-motor maker. Simu sits in the same wider group.
Sun, in watts
The worked opening for Becker, Selve and Simu is 4.2 m wide by 1.5 m high, 6.3 square metres of glass. This figure puts 595 watts per square metre on the pane and uses a g-value of 0.63, about 2362 watts into the room if the curtain is up. An opaque external shutter, taken as stopping 80 percent of that gain while it is fully down, leaves about 472 watts and keeps about 1890 watts out. That is a noon figure for comparison. An internal blind does not get the same reduction. For Becker, Selve and Simu, use the noon figure to compare two openings on the same house, then let a measured survey replace the figure.
An internal blind does not get that reduction, because the energy has already crossed the glass.
On this opening
Becker and Selve are common in German shutters. The best motor is the one your fitter can still get a part for, programmed on the day, with a switch you understand.
The same glass in winter
Winter figure for Becker, Selve and Simu: glass at 1.2 W/m2K, 6.3 square metres, a 12 degree inside-outside gap and eight night hours. The bare pane is about 0.73 kWh a night on that crude sum. A closed shutter cutting about 18 percent of the flow leaves 0.60 kWh and saves about 0.13 kWh a night, only while it is down. Open it when you want winter sun.
I would not order yet
Stop Becker, Selve and Simu if the door is an escape route and the motor has no way to open when it is dead. A photograph is not a manufacturing size.
Glasgow is only a setting for Becker, Selve and Simu. The streets there are not the product.
How to use the figure
The 4.2 by 1.5 metre opening inside Becker, Selve and Simu is there so a quote has something to disagree with. If the tape gives a different size, the tape wins.
The example drive is a belt, and the illustration is £4,386. A belt, a wired motor and a solar motor can share a curtain and still be different jobs. Compare those lines, not a single bold total.
What the survey still has to write down
For Becker, Selve and Simu, ask where the box lands, what colour reference will be ordered, and how the curtain opens when the motor is dead. Those three answers move the job more than a rounded price.
Leave the lantern, the side light and the next elevation off the order unless they are drawn. Becker, Selve and Simu covers one kind of opening. The house may have three.
When I would not order yet
Becker, Selve and Simu should wait if the opening is an escape door with no way to raise a dead motor, or if the front is the elevation a conservation area was drawn to protect.
A photograph is not a manufacturing size. Two quotes for Becker, Selve and Simu only compare when the slat, the box and the drive are the same kind of thing.
Questions worth asking the fitter
Is the price on this page a quote?
No. £4,386 illustrates Becker, Selve and Simu for a 4.2 by 1.5 metre opening with a belt, at September 2026 rates. Your survey replaces it.
Does the shutter cover every pane?
It covers the opening it is built for. Here that example is 6.3 square metres. A roof lantern, a side light or the next elevation is another line.
What if planning is unclear?
Do not pay the factory for Becker, Selve and Simu until a listed building, a conservation front, a flat or a shopfront has a written answer. Ordinary rear walls on houses are sometimes simpler.
What should two quotes share?
The same openings, the same slat type, and the same drive. Becker, Selve and Simu uses a belt in the example so you can see how much the motor choice moves £4,386.