Block Drafts & Save Energy with Insulating Window Inserts

Poorly insulated windows don't just create uncomfortable chills, they also contribute to skyrocketing energy bills. Indow offers the perfect solution: innovative window inserts designed to stop drafts, improve energy efficiency, and enhance your home's comfort all year round.

The High Cost & Deep Discomfort Of Drafty Windows

The human body loses most of its heat from the head, hands, and feet. That’s why we wear hats, gloves, and heavy socks when we’re trying to stay warm in the winter.

Similarly, drafty windows are the #1 source of temperature loss in the home and the leading cause of wasted energy. Poorly insulated windows can lead to:

  • Uncomfortable Temperatures

    Drafty windows let cold air seep in during winter and hot air in during summer, making it difficult to maintain a comfortable temperature inside your home.

  • High Energy Bills

    Leaky windows force your HVAC system to work harder, leading to higher energy consumption and larger utility bills.

  • Noise Pollution

    Drafty windows allow outside noise to penetrate your home, disrupting your peace and quiet.

If you experience any of those issues, that’s a sure sign you need better window insulation in your home.

Insulating Your Windows Is Easy With Indow

Indow window inserts are a revolutionary solution for insulating your existing windows. These custom-made inserts fit snugly within your window frames, creating a secondary layer of insulation that:

  • Blocks Drafts

    Stops cold air infiltration in winter and hot air intrusion in summer, resulting in a more comfortable living environment.

  • Improves Energy Efficiency

    Reduces heat transfer, significantly lowering your energy consumption by an average of 20% and saving you money on utility bills.

  • Enhances Noise Control

    Acts as a sound barrier, reducing outside noise pollution an average of 50%, creating a quieter, more peaceful home.

Why are window inserts so effective against temperature and energy loss? Here’s our CEO, Sam Pardue to explain:

The Affordable Alternative To Window Replacement

Indow window inserts are an incredibly cost-effective alternative to window replacements. When you factor in labor and inconvenience, window replacements can cost over $1,000 per window and still only reduce energy bills by 15%!

You’ll also need to coordinate having contractors tear out your existing windows and the disruption to your day-to-day life. To make matters worse, the total costs of window replacements (including labor) aren’t a great option for increasing your home’s resale value.

average percentage saved on heating & cooling bills

20%

30%

15%

INDOW

REPLACEMENT WINDOWS

Invest in Comfort & Savings

Our team of Fit Specialists are available to ensure you get the right product and the right solution for your unique window problems and will make sure you get our best available pricing.

So what are you waiting for? Get in touch with us today and put your window worries behind you.

Indow:
The Trusted Choice for Window Inserts

  • Custom-Made for a Perfect Fit

    Indow inserts are meticulously crafted to fit your exact window dimensions. Our 99.6% customer satisfaction rate with fit speaks volumes about our commitment to precision.

  • Made in the USA

    We take pride in manufacturing our inserts right here in the United States with high-quality materials and craftsmanship.

  • Guaranteed Fit and Lifetime Warranty

    We stand behind our product with a comprehensive guarantee and a lifetime warranty.

  • Proven Performance

    Our inserts deliver a documented 20% average energy savings and up to 70% reduction in outside noise, translating to significant energy savings and a quieter, more comfortable living environment.

Customer Stories

Indow window guide - research by topic.

Customers see immediate benefits

Read what our customers are saying about insulating drafty windows with Indow:

“As soon as they installed the Indow inserts, the chill disappeared. The Indow inserts were the missing piece that made my home both comfortable and energy efficient,” raves one consumer.

Our inserts have even been featured twice on This Old House! Read more case studies on how our Indow window inserts can effectively block drafts to create coziness in your home.

Customer Reviews

Excellent

4.49 Average 1496 Reviews

Reviews.io logo

Dianne

This is a 5 star company from beginning to end. I purchased the I inserts in 2017 because the bedroom on the second story faced the street. These are very effective for street noise. Noticed a problem on one of the windows recently and they quickly took care of it due to their warranty. Customer service personnel are very helpful. The price of the windows was acceptable for top quality of sleep and less noise during the day

Posted 1 month ago

Paula S

From start to finish, we were very pleased with our rep, Reed, and the other staff at the PDX will call! The inserts themselves are stupendous! We purchased six total for the noisiest, road side(s) of our home. The outcome was beyond our expectations! Not only did the three rooms that bordered the road become at least 70% quieter, the other end of our home did as well! I cannot recommend Indow inserts more! The technology makes sense to add the inserts rather than purchasing new windows. Great results and thank you! Paul and Paula Spilsbury

Posted 4 months ago

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 5 months ago

Cynthia M

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

Posted 6 months 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 7 months ago

Jen F

Worth the money!

Posted 7 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 8 months ago

Anonymous

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

Posted 8 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 8 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 8 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 8 months ago

Susan A

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

Posted 8 months ago

Volodymyr R

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

Posted 8 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 8 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 8 months ago

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