Local Shutter InstallersSeasons · Season
Storms
Updated
High wind can damage a curtain that is half down or a venetian that should have been retracted. Follow the maker's wind advice.
When the curtain has to be down
A fully closed, locked roller on a specification that includes the site's exposure is the usual secure state. A half-lowered curtain is the one that bends.
A size you can argue with
The worked opening for Storms is 1.2 m wide by 1.5 m high, 1.8 square metres of glass. This figure puts 470 watts per square metre on the pane and uses a g-value of 0.63, about 533 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 107 watts and keeps about 426 watts out. That is a noon figure for comparison. An internal blind does not get the same reduction. For Storms, 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.
The night cover
Winter figure for Storms: glass at 1.2 W/m2K, 1.8 square metres, a 12 degree inside-outside gap and eight night hours. The bare pane is about 0.21 kWh a night on that crude sum. A closed shutter cutting about 18 percent of the flow leaves 0.17 kWh and saves about 0.04 kWh a night, only while it is down. Open it when you want winter sun.
A bad reason to proceed
Stop Storms if the only place for the box is a listed street front and nobody has written advice from the council. A photograph is not a manufacturing size.
Bath is only a setting for Storms. The streets there are not the product.
How to use the figure
The 1.2 by 1.5 metre opening inside Storms 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 £1,506. 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 Storms, 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. Storms covers one kind of opening. The house may have three.
When I would not order yet
Storms 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 Storms 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. £1,506 illustrates Storms for a 1.2 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 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 Storms 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. Storms uses a belt in the example so you can see how much the motor choice moves £1,506.