Indow Pricing

Indow window inserts block drafts, reduce noise, and save on your bills. We've made tens of thousands since opening for business, and we're proud to offer a premium, custom-made, & high-performance product for an accessible price.

Indow pricing is by the square foot and the grade type you select. Indow makes three high-performance window insert grade types. Each provides special benefits and all press into place without the disruption or added cost of construction.

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

$31/sf or just $372 for an average window

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

Performance Grade

$40/sf or just $480 for an average window

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

Commercial Grade

$44/sf or just $588 for an average window

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 & shipping charges not included. Shipping charges vary by region and order size – talk to a Fit Specialist to get our best pricing.

Better Than Your Average Window Insert

Custom Made. Snug Fit Guaranteed.

Our proprietary technology ensures a perfect fit whether you have odd-shaped windows or out-of-square windows. Unless you have a new house, your windows aren't perfectly square (and even that doesn't guarantee it). Homes settle, and create slanted windows—even if the window looks rectangular.

This is why most “out of the box” window inserts available at hardware stores won't fit your windows. Even if they seem to, a few millimeters gap allows drafts and noise to penetrate.

Closeup of storm window insert to insulate and block drafts.

Aren't They Just Plastic?

We use high-quality acrylic and silicone to build an insert that creates an air seal and has better optical clarity and thermal properties than glass. Our acrylic doesn't yellow over time, and our silicone doesn't lose its spring force—even exposed to the sun.

Watch this video to learn more about Indow pricing and the construction of our inserts:

How Much Do Indow Window Inserts Cost?

Indow Inserts vs Replacement Windows

  • Compared to full replacement windows, Indow inserts cost on average 75% less than wood & 50% less than vinyl.
  • Instead of ripping a hole in your wall, simply press an insert into place.
  • Meet historic guidelines with an insert that practically disappears vs thousands of dollars on replicas.

See a full comparison of window inserts and replacement windows:

Other Add Ons

Odd-shaped windows can be accommodated with special geometry window inserts for an added 25%.

Large windows, up to 6' x 8' or 5' x 10' do not require mullions. Windows larger than that do require mullions with the insert split into smaller panels.

Woman installing Indow window insert to create compression seal.

Guarantee & Warranties

All window measurements are checked by our software and window experts before the first cut is made. Because of this, our inserts come with a Residential Warranty, which protects your investment for as long as you live in your home. Our Commercial Warranty protects your investment 10 years from the date of purchase. Our Snug Fit guarantee is included in all self-measure orders.

Included in your order is: a cleaning kit, care guide, & installation support with a dedicated case manager in the event of an issue.

Customer Reviews

Excellent

4.49 Average 1493 Reviews

Reviews.io logo

JD

Brian was very helpful & informative. He helped me order the correct windows for my needs. They were shipped with the utmost of care & arrived ahead of schedule. Ultimately, the Indow Windows have been very helpful in muffling unwanted noises & they have helped save on our energy costs. Thank you, Indow Window!

Posted 1 week ago

Cynthia M

Very happy with the reduction in noise. Easy to install and use. Great customer service.

Posted 1 month ago

Juli E

We are thrilled with our Indow window inserts! I'd been on the lookout for a more permanent solution to leaky windows in our third floor living space. I discovered Indow on social media but since then have learned of friends who'd had Indow recommended to them by their rennovation contractor. The entire process went smoothly with friendly reps at hand to talk through questions during measuring, etc. They fit perfectly and help us to maintain the beautiful design of the windows on our 100 year old home! Highly recommend!!

Posted 2 months ago

Jen F

Worth the money!

Posted 2 months ago

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.

Posted 3 months ago

Anonymous

Easy to install, and instantly stopped drafts and dampened outside noises very effectively!

Posted 3 months ago

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.

Posted 3 months ago

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.

Posted 3 months ago

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!

Posted 3 months ago

Susan A

The support during the entire process was wonderful, thank you so much for the extra quiet space!

Posted 3 months ago

Volodymyr R

Very good good quality. Overall very satisfied with this product and service. Thanks

Posted 3 months ago

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.

Posted 3 months ago

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!

Posted 3 months ago

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.

Posted 3 months ago

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.

Posted 4 months ago

How Much Will My Indow Insert Cost?

Fill out our Free Estimate form. That will connect you with an Indow representative to work out the details of your project and provide an estimate. They are incredibly knowledgeable and will let you know if Indow is the right choice for you.

Indow window what do they cost

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bedroom with window with Indow inserts installed for soundproofing in San Francisco

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