Local Shutter InstallersSecurity · Survey
LPS 1175 and a house shutter
Updated
LPS 1175 is a Loss Prevention Certification Board test of a security product against a defined attack. The result belongs to an assembly: slat, guide, lock, fixing.
What the wall will allow
A brochure that says 'insurance approved' without the certificate for the thing on your wall is a slogan. Ask to see the scope.
A worked pane
The worked opening for LPS 1175 and a house shutter is 1.8 m wide by 1.5 m high, 2.7 square metres of glass. This figure puts 620 watts per square metre on the pane and uses a g-value of 0.7, about 1172 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 176 watts and keeps about 996 watts out. That is a noon figure for comparison. An internal blind does not get the same reduction. For LPS 1175 and a house shutter, 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 LPS 1175 and a house shutter: glass at 1.4 W/m2K, 2.7 square metres, a 12 degree inside-outside gap and eight night hours. The bare pane is about 0.36 kWh a night on that crude sum. A closed shutter cutting about 24 percent of the flow leaves 0.28 kWh and saves about 0.09 kWh a night, only while it is down. Open it when you want winter sun.
Stop conditions
Stop LPS 1175 and a house shutter if the frame cannot take a guide and the wall beside it is crumbling. A photograph is not a manufacturing size.
Southampton is only a setting for LPS 1175 and a house shutter. The streets there are not the product.
How to use the figure
The 1.8 by 1.5 metre opening inside LPS 1175 and a house shutter 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 £2,102. 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 LPS 1175 and a house shutter, 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. LPS 1175 and a house shutter covers one kind of opening. The house may have three.
When I would not order yet
LPS 1175 and a house shutter 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 LPS 1175 and a house shutter 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. £2,102 illustrates LPS 1175 and a house shutter for a 1.8 by 1.5 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 2.7 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 LPS 1175 and a house shutter 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. LPS 1175 and a house shutter uses a wired motor in the example so you can see how much the motor choice moves £2,102.