Local Shutter InstallersNoise · Survey
Nurseries, blackout and heat
Updated
A south or west nursery can be too bright and too hot on the same afternoon. An external solid curtain deals with both better than a blackout blind inside the glass.
What the wall will allow
Cord safety and a motor that will not pinch a small hand are the domestic details that matter as much as the slat.
A worked pane
The worked opening for Nurseries, blackout and heat is 3.2 m wide by 1.5 m high, 4.8 square metres of glass. This figure puts 470 watts per square metre on the pane and uses a g-value of 0.7, about 1579 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 237 watts and keeps about 1342 watts out. That is a noon figure for comparison. An internal blind does not get the same reduction. For Nurseries, blackout and heat, 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 Nurseries, blackout and heat: glass at 1.4 W/m2K, 4.8 square metres, a 12 degree inside-outside gap and eight night hours. The bare pane is about 0.65 kWh a night on that crude sum. A closed shutter cutting about 24 percent of the flow leaves 0.49 kWh and saves about 0.15 kWh a night, only while it is down. Open it when you want winter sun.
Stop conditions
Stop Nurseries, blackout and heat 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.
Norwich is only a setting for Nurseries, blackout and heat. The streets there are not the product.
How to use the figure
The 3.2 by 1.5 metre opening inside Nurseries, blackout and heat 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 £3,628. 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 Nurseries, blackout and heat, 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. Nurseries, blackout and heat covers one kind of opening. The house may have three.
When I would not order yet
Nurseries, blackout and heat 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 Nurseries, blackout and heat 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. £3,628 illustrates Nurseries, blackout and heat for a 3.2 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 4.8 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 Nurseries, blackout and heat 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. Nurseries, blackout and heat uses a wired motor in the example so you can see how much the motor choice moves £3,628.