Create a sanctuary in the city with window inserts. If you’ve been seeking noise control in the Bay Area, Indow is your answer. They press into your window frame to block up to 70% of outside noise* without the need for construction.

You can still see the remnants of old San Francisco around the city: the Victorian row houses, the iconic facades, the beautiful bay windows. These all nod to the rich history of The City, but none of these were built for the noise levels of today. How do you deal with city traffic and BART noise coming through your windows? It’s time for some San Francisco soundproofing.

A window insert is a storm window that isn’t a storm window. We use patented compression tubing to keep the insert in place inside your window instead of metal tracking or magnets. This creates a near airtight seal to block out noise. Our Standard Grade insert blocks sound by 50%. Our Acoustic Grade insert blocks sound by 70%.


Because Indow inserts don’t require construction or any alterations to the windows, they work perfectly in apartments or rental houses. They can be removed at any time and reinstalled easily. You can achieve soundproofing in San Francisco without anything bulky or permanent.
Historic homeowners love Indow window inserts for the same reasons. Instead of replacing historic windows, Indow inserts can be custom made into any shape to fit your window.

If you want to see the difference Indow window inserts can make, watch these videos of those who have installed them. These installations happened in some of the largest and noisiest cities in the world:
Indow window inserts are the soundproofing solution that can finally put an end to your noise issues. Enjoy peace, quiet, and start saving an average of 20% on your energy bills. Fill out the form below for a free estimate.
*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.
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 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.
Indow and Bay Area Soundproofing

Stop being woken up in the middle of the night by passing conversations. Say goodbye to the distracting BART noise. Indow window inserts will block outside noise and cannot be seen from outside. This means that they are already historic board approved and landlords love them.
Turn your space into a sanctuary in the city. Fill out the form to speak to someone about your windows.