{"title":"Blackout Window Inserts \u0026 No-Drill Blackout Shades","description":"\u003cp\u003eSome rooms need to be properly dark in the middle of the day. If you sleep after a night shift, put a baby down at noon, or have a bedroom that faces the morning sun, a regular shade leaves a glow around the edges that is enough to wake you. A blackout window insert solves this differently. Instead of hanging in front of the glass, it sits inside the window opening and fills it from edge to edge, so there is nowhere for light to slip past. Nothing is screwed into the frame. This page brings together our made-to-measure blackout inserts and the shade we recommend alongside them.\u003c\/p\u003e\n\u003ch2\u003eInsert options for a fully dark room\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eZeroGlow\u003c\/strong\u003e is our blackout window insert. It is a 25 mm blackout cellular shade held in a slim, edge-to-edge frame that presses into the window opening. A rubber weather strip around the outside of the frame seals it against the sides of the opening, which is what stops the light leaks you get around an ordinary shade. Because the shade lives inside the frame, it still opens: the lift is cordless, and you choose whether it travels up and down the glass or side to side. That means you can let daylight in on your days off without taking the insert out. The fabric comes in White, Black, Beige, Light Gray, Dark Gray and Straw, with three frame colors to pick from.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBlackout cellular shades\u003c\/strong\u003e are the choice for a window where an insert is not the right fit, for example glass set flush with the wall or a very large opening. They use the same honeycomb idea on a standard headrail and come in cordless, bead chain and motorized versions.\u003c\/p\u003e\n\u003cp\u003eA few design notes. In a nursery or a bedroom with pale walls, White or Beige fabric keeps the window quiet during the day. In a media room or a shift worker's bedroom, Black or Dark Gray lets the window almost disappear when the room is dark. If several windows share a wall, use the same fabric and frame color on all of them so the wall reads as one.\u003c\/p\u003e\n\u003ch2\u003eSizes to check before you order\u003c\/h2\u003e\n\u003cp\u003eZeroGlow is built to the exact size of your opening, measured in inches or millimeters, so each window gets its own frame. It is designed to sit inside the opening, so it suits a window with a recess around the glass.\u003c\/p\u003e\n\u003cp\u003eFor blackout cellular shades, the limit depends on how the shade operates. Cordless shades build from 12 inches wide up to 94 inches wide and 94 inches high. Bead chain shades start at 18 inches wide and reach 197 inches wide and 157 inches high, which covers the largest openings in a single shade. Motorized shades need at least 23 inches of width and stop at 79 inches high, so a tall window with a motor is the combination to check first.\u003c\/p\u003e\n\u003ch2\u003eMeasuring and installing it yourself\u003c\/h2\u003e\n\u003cp\u003eMeasure each window separately, even when two look the same. For ZeroGlow, measure the opening where the frame will sit and send us the exact size. For a blackout cellular shade, note whether it mounts inside or outside the frame. On an outside mount, adding 3 7\/8 inches to both the width and the height lets the shade overlap the opening and block more light at the edges.\u003c\/p\u003e\n\u003cp\u003eZeroGlow goes in with no drill and no tools, in three steps. Lay the frame on a soft, flat surface and join the corners. Fit the rubber weather strip around the outside edges of the frame. Then set the frame in the window opening and press the front gently until it is seated.\u003c\/p\u003e\n\u003cp\u003eCompare ZeroGlow with our blackout cellular shades here, order a sample to see the fabric against your own window, then send us your measurements. We make each insert and shade to measure and ship it direct to your door.\u003c\/p\u003e","products":[{"product_id":"blackout-cellular-shades","title":"Blackout Cellular Shades","description":"\u003cp\u003eHoneycomb shades built from 38 mm cells, roughly an inch and a half deep, that collapse into a tight stack as the shade rises. The cell structure holds a pocket of air across the face of the window and gives the shade its clean pleated look.\u003c\/p\u003e\u003cp\u003eThe blackout fabric stops light through the panel, so the room goes dark rather than dim. The stack is compact when raised, which keeps the top of the window clear and makes cellular a good answer where a bulkier shade would eat into the glass.\u003c\/p\u003e\u003cp\u003eA top down bottom up build is available, letting you drop the shade from the top for daylight while the bottom stays closed for privacy.\u003c\/p\u003e\u003ch3\u003eWays to operate\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCordless.\u003c\/strong\u003e No cords or chains anywhere on the shade, which makes it the safest choice around children and pets. Lift or lower it by hand and it holds wherever you leave it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCord loop.\u003c\/strong\u003e A continuous bead chain raises and lowers the shade and holds it at any height. The chain is fitted with a tensioner as standard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotorized.\u003c\/strong\u003e Quiet battery motor with remote, app and voice control. Motorized cellular is limited in height, so it suits standard windows rather than tall ones. We will confirm what your opening can take before you order.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSmart control\u003c\/h3\u003e\u003cp\u003eMotorized shades run on a rechargeable lithium battery and are controlled by remote, wall switch or app. Two smart options are available. Zigbee motors pair directly with select Amazon Echo models, and reach any other Alexa setup through a hub. Matter motors join Apple Home directly, and also connect to Alexa, Google Home, SmartThings and Home Assistant.\u003c\/p\u003e\u003cp\u003eOnce a shade is on your network you can move it by voice, group shades into rooms and scenes, and set schedules so they open in the morning and close at night without you touching anything. Each motor stores six positions, the two end limits plus four favourites, so a half open setting is a single button press.\u003c\/p\u003e","brand":"Coverly","offers":[{"title":"Default Title","offer_id":52513654931758,"sku":null,"price":59.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/7331\/0254\/files\/blackout-cellular-shades__gray.png?v=1787951010"},{"product_id":"zeroglow-blackout-shades","title":"ZeroGlow™ Blackout Shades","description":"\u003cp\u003eTotal blackout bliss. A 25 mm cellular shade in an edge-to-edge frame, cordless, built to your opening in inches or millimetres.\u003c\/p\u003e\n\u003cp\u003eChoose the fabric from six colors, the frame from three, and whether the shade travels up and down the glass or side to side.\u003c\/p\u003e","brand":"Coverly","offers":[{"title":"Default Title","offer_id":52600989974830,"sku":null,"price":89.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/7331\/0254\/files\/zeroglow-variant-black-final-20261021_3c8131cc-7d05-4d74-9c5d-84311b8d7f9f.png?v=1792599368"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/7331\/0254\/collections\/blackout-window-inserts.png?v=1793673433","url":"https:\/\/coverlyshutters.com\/collections\/blackout-window-inserts.oembed","provider":"Coverly","version":"1.0","type":"link"}