Save up to $1,200 on thermal window inserts.
Smart Solutions For Your Window Worries
Whether you have a drafty home, a noisy neighborhood, or a desire to reduce your energy consumption and costs, interior window inserts from Indow are a clear choice.
Comfort & Savings
Seal out drafts, save money on energy bills and make your space more comfortable. All while maintaining historic and architectural integrity to preserve value.
Noise Reduction
Block outside noise by adding Indow inserts to your existing window panes to create a sound-deadening air pocket.
Lights & UV
Whether you're trying to create privacy in any room, fully block light for better sleep, or filter damaging UV rays to protect your cherished belongings, we've got a solution for you.
We can address drafts, energy costs, and noise at work. Indow commercial solutions improve the comfort of your work space and free more of your company's budget. Explore our commercial window solutions.
No matter what your window issue is, Indow windows compression-fit inserts work with your existing window frames, so no need to spend a ton of cash replacing your windows. Made with proprietary software, our inserts are incredibly accurate in size, can be installed without using mounting hardware and have such a low-profile they virtually disappear once installed.
Contact us anytime for a free estimate on installing window inserts at your location!
See How Indow Inserts Work
With Indow window inserts you don't need to invest in new windows to attain comfort. Indow window inserts fit tightly into your existing window frames, blocking drafts and hot summer air. They also significantly reduce outside noise and help control light.
Don't replace your windows. Choose custom-designed window inserts to make them just right.
"We purchased an Indow insert so we could keep our beautiful original 1939 leaded glass window. Our goal was only to stop drafts. It not only stopped the drafts, but it also decreased street noise. We did not expect this benefit, what a pleasant surprise." — Darci M.
Storm Window Inserts That Last
Our storm window inserts aren't windows. They aren't exterior storms or magnetic interior storm windows. Instead, they are custom-designed inserts that simply press into the interior of your existing window frames, with no hardware or mounting brackets required. This means they make your original windows perform like new, transforming them to meet your needs without the hefty cost of replacement windows.
Durable. Custom-made in the U.S. Easy to install. These are just a few of the many benefits our inserts offer. Our acrylic window inserts are edged with a soft silicone compression tubing that creates a tight seal. Laser measuring ensures they fit precisely and stay securely in place. Enjoy all the benefits of new windows, but with a simpler, custom-made solution!
Explore our site to learn more about how our window inserts will help you overcome your window challenges.
Comfort & Quiet in Business: Commercial Solutions
Consideration for comfort and sanity shouldn't be suspended when you walk into the office, or a guest checks into your hotel. Creature comforts matter everywhere. Our Commercial Hub has all the information you need to determine if Indow window inserts are the best solution for your business's windows.
Build Your Own Estimate
Indow inserts provide instant comfort once they reach your windows.
Now
you can get an instant estimate in 3 easy steps.
Measure At Home
Enter Online
See Your Estimate
We still check your measurements and provide accurate results down to the 1/32″, but this estimate is the first step in finding instant comfort.
Our Pricing Calculator is currently unavailable. Contact us to discuss pricing.
Get a Free Estimate
WE SHIP TO YOU!
You're one step closer to creating more comfort & quiet in your home.
%20--%3e%3csvg%20version='1.1'%20id='Layer_1'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20x='0px'%20y='0px'%20viewBox='0%200%20142.34%20163.37'%20style='enable-background:new%200%200%20142.34%20163.37;'%20xml:space='preserve'%3e%3cstyle%20type='text/css'%3e%20.st0{fill:%23FCBC18;}%20.st1{fill:%23FFFFFF;}%20.st2{fill:%23231F20;}%20.st3{fill:%237CC9D6;}%20.st4{fill:%23F0D0B4;}%20.st5{opacity:0.1;fill:%23010101;enable-background:new%20;}%20.st6{fill:%2397393D;}%20.st7{fill:%23603B17;}%20.st8{fill:%23010101;}%20.st9{fill:%23E05258;}%20%3c/style%3e%3cg%3e%3cpolygon%20class='st0'%20points='59.25,99.06%202.77,110.75%200.97,1%2058.77,11.47%20'/%3e%3cpolygon%20class='st1'%20points='51.37,55.9%2030.49,55.69%2030.01,13.33%2051.01,16.67%20'/%3e%3cpolygon%20class='st1'%20points='26.69,55.69%205.45,55.69%205.05,9.51%2026.54,12.85%20'/%3e%3cpolygon%20class='st1'%20points='51.35,59.44%2030.49,59.5%2030.93,96.41%2051.68,93.4%20'/%3e%3cpolygon%20class='st1'%20points='26.97,59.6%205.46,60.01%206.19,101.52%2027.31,97.96%20'/%3e%3c/g%3e%3cpath%20class='st2'%20d='M12.87,11.97L6.06,91.34l0.12,10.18l46.45-7.81l5.7-73.98L12.87,11.97z%20M50.1,91.34L7.49,97.99l8.08-82.69%20l40.24,6.34L50.1,91.34z'/%3e%3cpath%20class='st3'%20d='M126.62,95.62c0,0-19.34-0.39-39.69-12.95S53.99,49.59,53.99,49.59l3.85-4.75c0,0,11.11,19.57,31.87,32.4%20s38.02,12.04,38.02,12.04L126.62,95.62z'/%3e%3cg%3e%3cpath%20class='st4'%20d='M52.64,49.94c1.59,2.09,4.58,2.5,6.67,0.91s2.5-4.58,0.91-6.67s-4.57-2.5-6.67-0.91%20C51.46,44.86,51.05,47.85,52.64,49.94z'/%3e%3c/g%3e%3cpath%20class='st5'%20d='M140.35,157.14c0,2.58-18.25,4.67-40.75,4.67c-22.51,0-40.75-2.09-40.75-4.67s18.25-4.67,40.75-4.67%20C122.11,152.48,140.35,154.57,140.35,157.14z'/%3e%3cpath%20class='st2'%20d='M129.57,122.77H70.39l0.34,7.8c0,0,29.07,4.12,58.24,0.04C128.96,130.61,129.61,125.54,129.57,122.77z'/%3e%3cpolygon%20class='st4'%20points='131.22,81.65%2068.75,71.93%2068.75,30.1%20131.22,30.1%20'/%3e%3cpolygon%20class='st3'%20points='131.22,81.65%2068.61,71.54%2070.39,122.77%20129.57,122.77%20'/%3e%3cpath%20class='st6'%20d='M73.73,64.8c5.16,1.88,10.07,1.41,10.96-1.05L66,56.94C65.11,59.4,68.57,62.92,73.73,64.8z'/%3e%3cpath%20class='st2'%20d='M124.51,49.91c0,0-1.51,7.66-0.32,10.27c0,0,1.22,0.54,3.07-5.31c0,0,6.76-1.52,2.24,4.02%20c0,0,0.4,10.76,1.55,12.48c-1.59,1.52,22.81-35.33-3.17-47.52c-0.63-4.91-45.62-33.9-60.96,7.32%20C66.92,31.17,62.02,39.08,124.51,49.91z'/%3e%3cpolygon%20class='st2'%20points='70.55,126.35%2071.66,153.27%2075.9,153.27%2078.69,126.35%20'/%3e%3cpolygon%20class='st2'%20points='121.26,126.35%20122.37,153.27%20126.62,153.27%20129.41,126.35%20'/%3e%3cpath%20class='st7'%20d='M75.9,153.27c0,0-2.39-1.79-4.25,0s-1.63,1.79-2.91,2.11c-1.28,0.31-2.41,3.46,7.16,1.57%20C75.9,156.95,78.8,156.01,75.9,153.27z'/%3e%3cpath%20class='st7'%20d='M126.63,153.27c0,0-2.39-1.79-4.25,0s-1.63,1.79-2.91,2.11c-1.28,0.31-2.41,3.46,7.16,1.57%20C126.63,156.95,129.52,156.01,126.63,153.27z'/%3e%3ccircle%20class='st8'%20cx='69.17'%20cy='46.79'%20r='2.64'/%3e%3ccircle%20class='st8'%20cx='83.99'%20cy='51.82'%20r='2.64'/%3e%3cpolygon%20class='st9'%20points='72.83,77.47%2072.03,75.36%2069.8,75%2068.37,76.75%2069.17,78.85%2063.75,97.72%2066.63,101.72%2070.62,98.83%2071.41,79.21%20'/%3e%3cpath%20class='st3'%20d='M82.58,94.19c0,0-19.34-0.39-39.69-12.95S9.95,48.16,9.95,48.16l3.85-4.75c0,0,11.11,19.57,31.87,32.4%20s38.02,12.04,38.02,12.04L82.58,94.19z'/%3e%3cg%3e%3cpath%20class='st4'%20d='M8.6,48.51c1.59,2.09,4.58,2.5,6.67,0.91c2.09-1.59,2.5-4.58,0.91-6.67s-4.57-2.5-6.67-0.91%20C7.42,43.43,7.01,46.42,8.6,48.51z'/%3e%3c/g%3e%3c/svg%3e)
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.
Customer Reviews
4.49 Average 1490 Reviews
Jen F
Worth the money!
Elizabeth H
For townhouse living, this solved my problem with noise from my neighbor's with my kitchen window. A considerable decrease of noise indeed! Measurements were a bit frustrating so I recommend using a laser measurement device and following directions to use a string for the diagonal. They look great and were easy to push into place. I highly recommend as an alternative to buying a new window.
Anonymous
Easy to install, and instantly stopped drafts and dampened outside noises very effectively!
Robert C
The process could've been smoother with the sending of the measuring kit. There was a delay with weather in Oregon but then it felt like my kit was still delayed due to other reasons. Most new homes (like mine) have textured paint and it can also be inside your window frames. I measured everything out but I still have little tiny gaps due to the texturing. Not indows problem but just be aware you made need to sand or fill in those gaps yourself to get a perfect seal. I did the acoustic grade inserts and they have reduced some noise but they will not completely block or significantly reduce road noise. This is most apparent with deep or lower frequencies like truck exhausts or modified street racing cars that are quite popular these days. Taking the inserts out to open your windows isn't an easy task. The little metal hook they provide needs to be either bigger or you can attach something to it as a way to leverage yourself. Overall the process was average. I think they're definitely a good option for weatherproofing and some sound reduction depending on the type of windows you have. I would purchase again.
Shelley C
The process for ordering and installing the Indow Widnow inserts was so easy. They sent the measuring information and it had great instructions. The inserts were delivered by UPS was crushed on one corner, but the company had packed them well, so there was no damage. We installed them the same day. It works best if you have two people completing the installation. We felt the results immediately and are glad we spent the money to make our home just a little more efficient.
Barry B
The insert fits like a glove and insulates the window! No more frost and condensation on the interior of the window! Thank you for an easy, effective and attractive fix!
Susan A
The support during the entire process was wonderful, thank you so much for the extra quiet space!
Volodymyr R
Very good good quality. Overall very satisfied with this product and service. Thanks
Jane H
Our home was built in 1913 and has beautiful old wavy glass single-paned windows. I’m so glad we were told about Indows and didn’t have to replace the original windows. We live in Canada but had no difficulty placing the order and were very impressed by how accurately the company met its deadlines, including cross border delivery. The Indows inserts blend in perfectly with our home and the existing window frames. You don’t see them unless you’re actually looking for them. But what we did notice was how much warmer the rooms feel the minute the inserts were installed! I can’t speak to any heating bill savings because they just went in this week, but our home feels much, much cozier. Our contractor who took all the measurements and installed the Indows says: “Excellent instructional videos: clear and informative. Very impressed with the design and the product. Overall, the ease of installation is quite impressive. Working with all the staff at the company was great – everyone was very helpful.” I’m already recommending this company to any of my friends who live in drafty older homes and want to reduce their heating/cooling bills and do some good for the environment.
Anonymous
Don't be afraid of buying an older home with single pane windows. This company has you covered. Their inserts are super high quality and fit well thanks to the laser measuring kit they send. Highly recommended!
Katie M
We purchased three Indows to reduce drafts and noise in our bedroom, which faces the street. The improvement was immediate. Our house was built in 1958 and although we have exterior storm windows we didn't want to replace the windows outright due to cost and architectural consistency. These were an excellent solution.
Matthew L
Indow inserts were easy to measure, order and install. They've provided great insulation for old single-pane and stained glass windows in an antique home. We can significantly feel how much better the home holds heat.
Ellis W
I ordered two Indow inserts for my home. They are doing a great job, entirely happy with them and the ordering process.
Elizabeth W
I can't say enough good things about this product and company. Our house is 101 years old and the sidelites next to our front door are single pane ancient wavy glass which means when it gets very cold (Chicago temps) we can have an inch of frost covering the INSIDE of our windows. I was desperately searching for a solution so our front vestibule was not so cold and a friend recommended Indow. The process could not have been simpler and the temperature difference it has made is off the charts.
Austin T
I have several historic single pane gridwork mullion windows. They're beautiful but have almost no thermal protection. Indows proved to be the perfect solution to preserve these windows while getting the thermal comfort we need. They were easy to install and work perfectly!
