Indow inserts are interior storm windows that press into place on the inside of your window frames, without the need for a mounting bracket. Our patented silicone tubing holds the insert in place while blocking drafts and noise. Unlike magnetic storm windows, Indow inserts don’t change the appearance of your home, or require climbing a ladder outside to install. 

Customer easily presses Indow window insert into large window without magnetic window insulation

We pride ourselves on our craftsmanship and experience. Each insert is cut to precisely fit each window frame, and the silicone compression tubing allows it to be easily popped in and out of place. They come in a wide range of sizes and shapes to fit windows that many magnetic interior storm windows cannot be installed in.

So simple, you’ll wonder why they haven’t been invented before.

Chart comparing Indow window inserts to to magnetic storm windows

Magnetic window insulation does not provide as good a seal as compression tubing. Indow window inserts use compression tubing to create a dead air space between the insert and the window. This provides superior draft and noise blocking.

Magnet seal windows can also harm the window frame during installation and removal. Indow inserts don’t use screws or adhesive. They arrive ready to be installed and just press into place.

closeup of customer installing indow window insert into odd-shaped window without need of magnetic window insulation

Check out this video to learn more:

What to expect from Indow window inserts:

  • Superior at blocking drafts
  • Easy to install & remove
  • Reduce or eliminate condensation
  • Average 20% energy savings
  • Up to 70% noise reduction
  • Approved by historic district guidelines

Avoid Magnetic Storm Windows That Require Adhesive & Screws

Many magnetic window inserts require adhesive, screws, or additional hardware and often have to be measured, cut and assembled on-site before installation. This can take hours and permanently alter the historic integrity of your home. Indow window inserts require none of the above.

Magnetic Storm Windows:

  1. Require tools & hardware to install
  2. Can permanently damage your window frame
  3. Have an inferior seal from magnetic window insulation vs compression
  4. Need to be assembled upon arrival
  5. Don't have easy installation & removal

Once you’ve got the facts we know you’ll agree – Indow inserts are a better solution than magnetic storm windows for blocking drafts, heat, noise, UV, and gaining privacy in your home.

Diagram of how magnetic storm windows attach to your window frame using permanent adhesive, screws, and metal strips which may require adjustment

Indow inserts compression system provides a better seal than acrylic magnetic windows. They also require no cutting or permanent adhesive to install like magnetic interior storm windows do. Installation of Indow inserts is easy and will not permanently alter your window.

Each insert is custom made for your window and priced by the square foot. We’re happy to answer any questions. Sign up today for a free consultation and estimate.

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bedroom with window with indow inserts installed for soundproofing in san francisco

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

indow windows cost for standard grade window insert is $27 per square foot

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

Performance Grades

indow windows cost for premium grade window insert is $36 per square foot

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

Commercial Grade

indow windows cost for commercial grade window insert is $41 per square foot

Industrial strength insert 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 customer window inset.

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

Compare To Replacement Windows

Awards & Recognition
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