Local Shutter InstallersSecurity · Survey
Guides, locks and anti-lift
Updated
Burglary through a shutter, when it works, is often about the side guide, the bottom bar or a curtain that can be lifted, not about a cinematic assault on the slat. The quote should say how the bottom bar locks and whether the curtain can be raised from outside when the motor is stopped.
What the wall will allow
The useful version of Guides, locks and anti-lift is the one that names the opening, not the one that names a street in Germany.
A worked pane
The worked opening for Guides, locks and anti-lift is 1.5 m wide by 1.2 m high, 1.8 square metres of glass. This figure puts 520 watts per square metre on the pane and uses a g-value of 0.7, about 655 watts into the room if the curtain is up. An opaque external shutter, taken as stopping 85 percent of that gain while it is fully down, leaves about 98 watts and keeps about 557 watts out. That is a noon figure for comparison. An internal blind does not get the same reduction. For Guides, locks and anti-lift, 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.
After dark
Winter figure for Guides, locks and anti-lift: glass at 1.4 W/m2K, 1.8 square metres, a 12 degree inside-outside gap and eight night hours. The bare pane is about 0.24 kWh a night on that crude sum. A closed shutter cutting about 24 percent of the flow leaves 0.18 kWh and saves about 0.06 kWh a night, only while it is down. Open it when you want winter sun.
Stop conditions
Stop Guides, locks and anti-lift if the frame cannot take a guide and the wall beside it is crumbling. A photograph is not a manufacturing size.
Oxford is only a setting for Guides, locks and anti-lift. The streets there are not the product.
How to use the figure
The 1.5 by 1.2 metre opening inside Guides, locks and anti-lift 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 wired motor, and the illustration is £1,748. 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 Guides, locks and anti-lift, 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. Guides, locks and anti-lift covers one kind of opening. The house may have three.
When I would not order yet
Guides, locks and anti-lift 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 Guides, locks and anti-lift 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. £1,748 illustrates Guides, locks and anti-lift for a 1.5 by 1.2 metre opening with a wired motor, 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 1.8 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 Guides, locks and anti-lift 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. Guides, locks and anti-lift uses a wired motor in the example so you can see how much the motor choice moves £1,748.