Window Light Blocking Solutions

Indow offers three window light-blocking solutions to help you reduce air conditioning bills, gain privacy, or create darkness for better sleep. Our custom-made inserts fit windows using silicone compression tubing so they press into place without mounting hardware.

There are many unique challenges when it comes to controlling light. Indow inserts create custom window sun protection and window privacy solutions without having to replace your windows, add blinds, or hang curtains.

Sleep Panels block out all light for 100% darkness.

Museum Grade blocks 98% UV rays and increases energy efficiency .

Privacy Grade diffuses light for privacy without blocking natural light.

indow window uv light solutions
Sun Protection for Windows + Noise and Heat Control

Like all our inserts, each of our window light-blocking solutions add energy efficiency and reduce noise. In addition to protecting your furniture or providing privacy, Indow inserts will also:

  • Reduce 50% of outside noise.*
  • Increase comfort by eliminating drafts.
  • Lower heating & cooling bills up to 20%.
  • Install & remove easily.
Ways to Block Sunlight from Windows

Sleep PanelBlackout window inserts provide 100% darkness and 50% noise reduction. Because of their snug fit, these panels block out ALL LIGHT, no creeping rays around the edges. The panels are made of medium density fiberboard with a white surface facing the inside of the room. This material also helps control room temperature. They install and uninstall in minutes with easy storage under the bed.

Museum GradeUV window protection prevents fading on wood floors, furniture, & artwork. These inserts block 98% of UV rays while allowing natural light through. They offer the same noise reduction and temperature control as the Sleep Panel. With UV protection for windows, you are protecting your other home investments.

Privacy GradeWindow privacy inserts that still allow natural light. These inserts are translucent, so block the view coming through the window, but allow light to fill the room. The surface of the insert is “clouded” which hides fingerprints and the compression seal helps reduce condensation (easy bathroom cleaning). They offer the same noise reduction and temperature control as the Sleep Panel.


*We want to ensure our inserts help solve your noise problem. Overall noise reduction depends on the amount of noise coming through your walls, ceilings, floors, doors, and existing windows. Noise reduction will be less when placed over double-pane windows. Read our full Noise Reduction Sheet to learn more.

What Do They Cost?

Consider the cost and disruption of replacing your windows. A vinyl window averages $66-$87/sf. A wood window averages $71-$109/sf. With Indow inserts averaging between $31-$44/sf MSRP, your window project can cost a fraction of other options.


Standard Grade


Our workhorse interior storm window insert blocks drafts and reduces outside noise.

Performance Grades


Our 4 options in performance grade inserts provide superior protection against noise and light.

Commercial Grades


Industrial strength inserts with a scratch-resistant coating can be cleaned with common products.

When you measure your windows, you’ll have help at every step. First, we have a library of video and written tutorials available. Second, our amazing team is always ready to take your call if you need assistance. Third, our proprietary measurement software will automatically check your measurements as you enter them to ensure a tight, snug fit for your custom window insert.

*Sales tax may apply

Use Our Pricing Calculator

Marla Yorsten in Texas found the solar window protection kept the sun from fading her favorite artwork.

indow window uv solutions testimonial
“I don’t want the sunlight to damage my stuff,” she said. “But I want my windows just the way they are.” The inserts “look beautiful.”

– Marla Y, Texas

Awards & Recognition
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bedroom with window with indow inserts installed for soundproofing in san francisco



We value safety and privacy. We will never share, sell, or rent your data to third parties not directly related to your purchase or consideration of our products. Read our full policy here.

Grade Types

Each grade blocks drafts and reduces outside noises, but our premium grades have special features to make your existing windows work the way they’re designed to while providing additional benefits Click here to read all of our grade descriptions.


To take the next steps on your order, there are two ways to submit your window measurements: an Indow provided laser, or your own tape measure. Either way, your measurements will be checked and confirmed by our proprietary measurement software Measure by Indow. This ensures a snug fit for your custom window insert.

To get a free estimate, use our online calculator or contact us today.

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