Custom blackout window inserts

Jul 5 – Oct 26, 2026Updated Oct 26, 2026Reviewed by

How we measure

Which brands AI mentions

#BrandMentioned in
#1Indow Windows89%
#2tiedBlackout EZ49%
#2tiedUBlockout36%
#4tiedBlinds.com16%
#4tiedMono16%

Mentioned in

ChatGPTChatGPTGoogle AI ModeGoogle AI Mode

Widest split: UBlockout, 4% on ChatGPT and 68% on Google AI Mode.

  • #1Indow WindowsChatGPT 91%Google AI Mode 86%
  • #2tiedBlackout EZChatGPT 39%Google AI Mode 59%
  • #2tiedUBlockoutChatGPT 4%Google AI Mode 68%
  • #4tiedBlinds.comChatGPT 0%Google AI Mode 32%
  • #4tiedMonoChatGPT 30%Google AI Mode 0%

Questions and answers

  • Google AI ModeOct 26, 2026

    1. 1Indow Windows
    2. 2Blinds.com
    3. 3The Home Depot

    If you need true flush or compression-fit inserts that block 100% of light (rather than standard hanging blinds or curtains that leak light around the edges), specialized manufacturers make custom-built panel solutions:

    • Indow Windows : Widely recognized as the premier maker of custom compression-fit window inserts, they offer specialized Sleep Panels . They laser-measure or take your exact window dimensions to create a custom acrylic/panel insert that presses snugly into your window frame using a patented compression tubing. They block 100% of incoming light and also offer substantial secondary benefits like noise and temperature reduction.
    • Local Glass & Glazing Shops: Many regional architectural glass or custom window tinting/treatment shops fabricate custom board or acrylic blackout inserts locally with rubber gaskets if you prefer an in-person measurement.
    • Custom Cellular / Honeycomb Shade Brands (Alternative approach): If a tight-fitting inside-mount shade with side-tracks is acceptable instead of a rigid panel insert, major custom shade providers like Blinds.com or The Home Depot offer custom-fit blackout cellular shades that can be paired with optional side-channels to eliminate edge light gaps.

    If you'd like, let me know:

    • Are you looking for a rigid compression panel that pops in and out (like Indow), or a custom blackout roller/cellular shade with side tracks?
    • Do you also struggle with outside noise alongside the light pollution?

    I can help you compare installation methods or estimate costs.

    Sources cited in this answer1

    ChatGPTOct 26, 2026

    1. 1Window Inserts
    2. 2The Calm Panel
    3. 3Halo Blinds
    4. 4Indow Windows

    If light pollution is disrupting your sleep, custom-fit blackout window inserts are a great solution to investigate. They fit inside your existing window frame and can block streetlights, security lights, and other outdoor light without requiring permanent changes to your windows.

    There are a few different types worth considering: rigid blackout panels made to your window measurements, removable blackout inserts with light-blocking seals around the edges, and custom-fitted blackout shades. For maximum darkness, the key is minimizing light leakage around the perimeter, not just choosing an opaque material.

    Best companies to start with

    • Blackout Windows with Indow Sleep Panels | Indow | Blinds design, Living room blinds, Curtains with blinds

    1. Indow

    (Best match)

    Indow makes removable, custom-measured blackout panels specifically designed to block outside light. The panels press into the existing window opening using a compression seal, without drilling or permanent modifications. The company advertises 100% light blocking.

    Advertised price: from $27/sq. ft. for qualifying multi-panel orders; individual panels start at $30/sq. ft., before shipping and tax.

    Shop Indow Blackout Sleep Panels

    • Deep Sleep Blind NZ | Custom Blackout Blinds | Venluree

    2. The Calm Panel

    A custom-made panel designed to press into your window frame and cover the edges where light leaks through. It's worth comparing if your primary goal is a darker bedroom rather than window insulation.

    Visit The Calm Panel

    • MONOBLINDS - 100% Blackout Blinds – Mono

    3. Halo Blinds

    A made-to-measure blackout system with a fitted frame designed to seal the edges. This is an alternative if you prefer a framed covering rather than a rigid insert panel. The manufacturer advertises installation without drilling.

    Visit Halo Blinds

    • Storm Snaps | Interior storm windows, Diy interior storm windows, Storm windows diy

    4. EnergySavr Window Inserts

    A lower-cost custom-insert manufacturer that ships across the US. Its standard panels use clear vinyl film, so these are not blackout panels as sold. Consider them only if you want to ask about a suitable opaque custom alternative.

    Visit EnergySavr

    What I'd recommend

    I'd contact Indow first because its product is specifically intended for sleep-related light blocking, rather than adapting an insulation insert or ordinary blackout curtain.

    Before ordering, confirm that the panel is compatible with your window style and ask how it handles light leakage at the corners, especially if your windows are not perfectly square.

    One question that would help me narrow this down: Are you looking for a removable, rigid panel that presses inside the window frame, or would a custom-fitted blackout shade also work? I can focus the next search on the style you prefer and manufacturers serving your area.

    Sources cited in this answer10

  • ChatGPTOct 16, 2026

    1. 1Dawnproof
    2. 2Indow Windows
    3. 3Halo Blinds
    4. 4TMS Soundproofing

    Yes! There are companies that make custom-sized blackout window inserts to fit your exact window measurements, rather than requiring you to buy standard-size curtains or blinds.

    The best option depends on whether you want a removable panel that fits snugly inside the window frame, a rigid blackout insert, or a more flexible fabric-covered solution. These are particularly useful for bedrooms, nurseries, shift workers, home theaters, and anyone who wants near-total darkness without installing permanent window treatments.

    Companies worth checking out

    • Blackout Windows with Indow Sleep Panels | Indow | Blinds design, Living room blinds, Curtains with blinds

    1. Indow — removable fitted inserts

    Makes inserts to the precise dimensions of your existing window frame. The inserts press into place without screws or permanent modifications. They offer a blackout solution called Sleep Panels.

    Best for: A snug-fitting insert that you can remove when needed.

    Website:

    • Deep Sleep Blind NZ | Custom Blackout Blinds | Venluree

    2. Dawnproof — framed blackout system

    Offers a made-to-order blackout system with a fitted perimeter frame and a shade that moves aside when you want daylight. Its website lists the Fixed model from $159.

    Best for: Everyday use in a bedroom where minimizing light leaks is important.

    Website:

    • Exlite Black Perfect Fit Spring Roller Blind with Anthracite Frame

    3. HaloBlinds — frame-sealed blinds

    Makes made-to-measure blackout blinds with a frame designed to reduce light leaking around the edges. It also offers an outside-mount option for windows without enough recess depth.

    Best for: A finished, built-in appearance rather than a loose panel.

    Website:

    • Magnetic Blackout Window Cover, 100% Blackout Shades 57"W x 39"L (Pack of 1) | eBay

    4. TM Soundproofing — custom-size removable panels

    Offers custom-sized window barrier panels with a light-blocking covering option. This is worth investigating if you want a panel rather than a traditional blind.

    Best for: Combining light blocking with sound reduction.

    Website:

    These companies offer different types of products, so confirm that the particular model fits your window configuration and desired level of darkness before ordering.

    Which type should you choose?

    TypeMain advantageMain consideration
    Removable blackout insertCan be taken out easily; no permanent installationMust fit the recess closely
    Rigid framed blackout shadeConvenient for daily opening and closingUsually costs more
    Flexible blackout panelLightweight and easy to storeEdges and attachment points can leak light

    My recommendation: If by “window insert” you mean a panel that fits inside the window opening and can be removed completely, start with Indow. If you want something that opens and closes every day, look at Dawnproof or HaloBlinds instead.

    I can narrow this down for your windows

    One question: Do you want a solid, removable panel that you pop into the window frame, or a fitted blackout shade that you can open and close?

    That distinction will help me find the closest match, including manufacturers that work with unusual window shapes or exact inch measurements.

    Sources cited in this answer9

    Google AI ModeOct 16, 2026

    1. 1Indow Windows
    2. 2Blackout EZ
    3. 3Blinds.com
    4. 4Blinds To Go

    Yes, there are manufacturers and custom fabricators that make interior window inserts and covers precisely tailored to your exact window measurements for total light blocking.

    Depending on whether you want a rigid sound-and-draft blocking insert or a lightweight removable fabric/vinyl panel, several options are available:

    • Indow Windows: Known for custom-measured, precision-fit interior acrylic inserts. They offer a specific Sleep Panels grade designed for complete bedroom blackout. They use a laser-measurement process and a patented compression tubing frame to snap snugly into your window frame without needing screws or brackets.
    • Blackout EZ: They manufacture custom-sized, lightweight vinyl/fabric blackout covers that attach tightly to your window frame using hook-and-loop (Velcro-style) tape. You input your exact dimensions online, and they cut the material to fit.
    • Custom Cellular / Roller Shade Manufacturers: Major online custom shade retailers (such as Blinds.com or Blinds To Go ) let you input down-to-the-fraction-of-an-inch inside-mount measurements for custom blackout cellular shades or roller shades, which sit tight inside the window casing to minimize light leakage.

    To help narrow down the best manufacturer for you, tell me:

    • Do you want a rigid acrylic insert (like a secondary pane of glass) or a flexible/fabric panel?
    • Are your windows a standard rectangular shape , or do you have arches/unusual geometry?

    Sources cited in this answer3

Also asked as

  • Are there companies that manufacture blackout inserts for windows that are made to measure?