Linda H
5 Stars ⭐️⭐️⭐️⭐️⭐️
Prepare for the inevitable chill of winter now. Indow inserts are expertly designed to insulate your drafty windows, ensuring your home stays warm and cozy no matter how low temperatures drop. Beyond comfort, you'll see an average 20% reduction in energy consumption, which means real savings on your utility bills all season long.
Beyond keeping you warm, our inserts deliver year-round benefits: they cut outside noise by up to 70%, block unwanted dust, smoke, and pollen, and even help keep your home cooler in the summer. Invest in a quieter, more comfortable, and energy-efficient home with incredible discounts during our Labor Day Sale, setting you up for savings in every season.
During our Labor Day Sale, we're offering instant discounts up to 20% on orders started by Friday, 9/12/2025 and completed by Friday 10/3/2025**.
SAVE
10%
SAVE
15%
SAVE
20%
Combine your Labor Day discounts with IRA tax credits† to save even more: residential homeowners can claim up to $1,200 in tax credits through the Energy Efficient Home Improvement Tax Credit for a total savings of up to 40% on qualified orders!
Decrease energy consumption by an average of 20%, reduce noise by up to 50%, and keep your home warmer in winter and cooler in summer.
Standard 3' x 4' window cost: $372
Save up to: $151 per window††
Enjoy all the benefits of a Standard Grade window insert with up to 70% noise reduction.
Standard 3' x 4' window cost: $480
Save up to: $285 per window††
2025 is the last year to take advantage of the Inflation Reduction Act tax credits for home insulation. Act now to maximize your savings before these credits expire for good!
* 40% savings based on maximum instant discounts and maximum IRA tax credits.
** Discount valid for residential customers who place a deposit by 9/12/2025 and submit final payment by 10/3/2025. Cannot be combined with other offers.
† Tax credits vary according to your specific tax situation - contact a tax professional to verify eligibility.
†† Shipping & sales tax not included. Potential cost savings calculated based on a common window size and total order size of $4,000.
Your inserts are custom made to your exact window measurements with our proprietary compression tubing, ensuring a nearly airtight seal and backed by our Snug Fit Guarantee.
Your inserts feature premium insulating acrylic that is built to withstand daily use and engineered to perform for the lifetime of your home. Guaranteed to be free from defect by our Lifetime Warranty.
Installation is simple - no tools or modifications to your existing window frames are necessary. Simply slide them into place in seconds and experience immediate results.
Each insert is proudly handcrafted in our Portland, OR facility using materials sourced right here in the USA, which allows us to maintain rigorous quality control and meet our exacting standards.
Indow has insulated more than 23,000 buildings - helping reduce carbon emissions by nearly 200,000 tons - and creating comfort across the US & Canada!
Request a Free Estimate. We'll provide you with a preliminary estimate based on your basic window dimensions. It's quick and easy!
Measure your windows with our easy-to-use laser measurement kit. We'll guide you through the simple process, ensuring a perfect fit.
Customize your inserts to match your needs and your aesthetic, with tubing colors that seamlessly blend into your space.
Transform your space with custom-crafted inserts shipped directly to your home, ready to fit perfectly in your windows.
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.
We have a very old home that started as a one room cabin in 1935 in the mountains of CA It has been added on to numerous times and the former owner changes out all of the windows to duel pane except one funky non opening window in a bedroom. Very cold in the winter. We needed a good solution. Found this company, and we are delighted with our purchase. Fits perfectly and is sturdy. Thank you for solving our problem!