Blackout Blinds

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Aqualush Red PVC Vertical Blind

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Cairo Blackout Brown Vertical Blind

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Cairo Blackout Red Vertical Blind

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Havana PVC Cream Vertical Blind

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Blackout blinds are blinds made with a dense, light-blocking fabric or PVC that stops daylight passing through the blind. They are used to darken bedrooms, nurseries and TV rooms, and to give full privacy at night. At 1ClickBlinds every blackout blind is made to measure, in roller, vertical, day and night, honeycomb, pleated and no drill styles.

A blackout fabric blocks light through the blind itself. How dark the room gets also depends on the fit: the less gap around the edges, the less light leaks in. That is why framed and no drill blackout blinds, which sit tight to the glass, give the darkest result.

Blackout blinds: the quick answer

Darkest option: honeycomb blackout blinds with side channels, from £61.94. They close the light gap at the edges and help keep heat in.
Best value: Insta Fit no drill blackout roller blinds, from £9.60, fitted inside the recess in about 30 seconds.
Best for uPVC and tilt and turn windows: perfect fit thermal blackout pleated blinds, from £77.98.
Best for patio doors and wide windows: blackout vertical blinds in fabric or waterproof PVC.
Best for kitchens and bathrooms: blackout waterproof PVC vertical blinds that wipe clean.
Best for switching between light and dark: blackout day and night blinds.

Types of blackout blinds

Type	How dark?	Fitting	Best for
Honeycomb blackout with side channels	Darkest, side channels block edge light	No drill, clips into uPVC windows	Bedrooms, nurseries, shift workers
Perfect fit thermal blackout pleated	Very dark, sits tight to the glass	No drill, clips into uPVC windows	Bedrooms, tilt and turn windows, conservatories
Blackout roller blinds	Dark, some light at the edges	Screw fit or Insta Fit no drill	Bedrooms, most standard windows
Blackout vertical blinds	Dark when slats are closed and overlapped	Screw fit headrail	Patio doors, bay windows, wide windows
Blackout waterproof PVC vertical	Dark, and wipes clean	Screw fit headrail	Kitchens, bathrooms, utility rooms
Blackout day and night blinds	Dim when the stripes line up, never fully black	Screw fit	Living rooms and bedrooms that want flexible light
Blackout curtains	Dark, extra layer	Curtain pole or track	Layering with a blind for the darkest room

Do blackout blinds block 100% of light?

The blackout fabric blocks light passing through it, but a small amount of light can still get in around the edges, at the top and at the bottom of the blind. How much depends on the fitting:

Fitting	Edge light	How to make it darker
Framed blind with side channels	Least	Already the darkest option
Perfect fit (clip-in frame on the glass)	Very little	Choose a blackout pleated or honeycomb fabric
Inside the recess	A thin line at each side	Measure the recess carefully for a close fit
Outside the recess (on the wall)	Some at top and sides	Overlap the window by about 50 to 100mm each side

Which blackout blind is best for each room?

Room	Best blackout blind	Why
Bedroom	Honeycomb or perfect fit thermal blackout pleated	Tight fit for dark mornings and better sleep
Nursery and children's room	Honeycomb blackout, cordless	Dark enough for daytime naps, no loose cords
Living room and TV room	Blackout roller or day and night	Cuts screen glare, flexible light
Patio and French doors	Blackout vertical blinds	Slats stack to the side to open the door
Kitchen and bathroom	Blackout waterproof PVC vertical	Steam-proof and wipe clean
Rented home	Insta Fit or no drill honeycomb	No screws, no holes to fill when you move
Home office	Blackout roller or day and night	Controls glare on screens

Room guides: blackout blinds for the bedroom, blackout blinds for nurseries and blackout blinds for living rooms.

No drill blackout blinds

If you rent, have uPVC windows or do not want to drill, there are three ways to fit a blackout blind with no screws:

Clip into the window seal: honeycomb blackout blinds and perfect fit thermal blackout pleated blinds clip behind the rubber seal of a uPVC window.
Fit inside the recess: Insta Fit blackout roller blinds fit inside the window recess with no tools.
Stick to the frame: Easy Stick blackout honeycomb blinds stick to a clean, smooth frame.

See all no drill blinds.

Are blackout blinds thermal?

Many are. A thick blackout fabric adds a layer between the glass and the room, and honeycomb blinds trap air in their cells. Research by the BBSA and the University of Salford found that blinds can cut heat loss through a window, with the best results from blinds that seal at the sides. If keeping warm matters as much as darkness, see our thermal blinds and read thermal blackout blinds.

Blackout blinds vs blackout curtains

	Blackout blinds	Blackout curtains
Fit	Close to the glass, less edge light	Hang away from the window, more light at top
Space	Slim, good for small rooms	Take up wall space
Cleaning	Wipe or dust	Washing needed
Darkest result	Blind on the glass	Curtain over the top (use both together)

Full comparison: blackout roller blinds vs blackout curtains.

How to measure for blackout blinds

Decide where it fits: inside the recess, outside the recess, or on the glass (perfect fit).
Inside the recess: measure the width at the top, middle and bottom and use the smallest. Measure the drop on the left, middle and right.
Outside the recess: add about 50 to 100mm each side and above the window to cut edge light.
Perfect fit: measure the visible glass and the bead depth. See our perfect fit measuring guide.

Frequently asked questions

What are blackout blinds?

Blackout blinds are blinds made with a dense fabric or PVC that blocks light from passing through. They darken a room and give full privacy.

What is the darkest type of blackout blind?

A framed blackout blind with side channels, such as our honeycomb blackout blinds. The side channels block light at the edges.

Do blackout blinds block all light?

The fabric blocks light, but some can leak in at the edges. A tight-fitting or framed blind gives the darkest room.

What is the difference between blackout and dim-out?

Blackout fabric blocks light through the blind. Dim-out fabric reduces light but lets some through, so the room is darker but not dark.

Can I get blackout blinds without drilling?

Yes. Choose Insta Fit roller blinds, perfect fit pleated, honeycomb blackout or Easy Stick blinds.

Are blackout blinds good for babies?

Yes. A dark room helps with daytime naps and light summer evenings. Choose a cordless style for safety.

Are blackout blinds good for keeping heat in?

Thick blackout fabrics and honeycomb blinds add insulation. For the best result, choose a blind that sits close to the glass or seals at the sides.

Can blackout blinds go in a bathroom?

Yes. Choose blackout waterproof PVC vertical blinds, which wipe clean and are not affected by steam. See waterproof blinds.

Do white blackout blinds work?

Yes. The colour does not decide darkness; the blackout backing does. A white blackout blind still blocks light. Read does a pale fabric really block the light?