How to Keep Cold Air from Coming Through Windows

Older windows, even some newer windows, can let cold air right into your home. It happens because of cracks, failed seals, and poor insulation. If you’re trying to fix this problem by putting bubble wrap on windows, you can do better. Read on for how to keep cold air from coming through windows.

Bubble Wrap Windows

Adding bubble wrap or saran wrap to your windows does help insulate them, but not very well. And these fixes look sloppy, especially when they have to be done over each year, leaving adhesive marks or chipped paint.

What bubble wrap can’t do, is create dead air space between it and your window. That’s a big reason why double-pane windows insulate better than single-pane, the space between the panes. When trying to keep cold from coming through your windows, you want to add layers – of material AND air.

woman adding bubble wrap windows for insulation

Understand R Value vs. U Value

The way your house feels depends on the make-up of your house: wall and attic insulation, double or single-pane windows. All of these have an R value and a U value that together make the mean radiant room temperature.

R value measures heat resistance and U value measures heat transference. A low U value (transfer of heat) and high R value (resistance to heat transfer) is ideal for high surface temperature. Together, these give us the combined effectiveness of the materials in insulating a room and our perceived temperature.

Mean radiant room temperature expresses the influence of all surface temperatures on comfort. That’s why someone sitting next to a window can be cold while someone across the room is fine. No matter what the thermostat says, if your windows aren’t insulated, you will have a low perceived temperature and comfort level.

How to Keep Cold Air From Coming Through Windows with Inserts

Give up the bubble wrap. To really keep cold air from coming through your windows and increase the perceived temperature, you need to increase insulation. You can add another layer of insulating material and air with window inserts.

Indow window inserts are made with acrylic, which insulates better than glass. They use compression tubing to create a seal around the window frame. This adds an air pocket between the insert and the window for more insulation. Because the insert is on the inside of the house, it raises the surface temperature.

Just one insert can have a huge impact on the mean radiant room temperature. Start with the coldest window

How to Insulate Windows | Indow

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Customer Reviews

Excellent

4.49 Average 1494 Reviews

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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 weeks 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 1 month ago

Cynthia M

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

Posted 2 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 3 months ago

Jen F

Worth the money!

Posted 3 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 4 months ago

Anonymous

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

Posted 4 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 4 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 4 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 4 months ago

Susan A

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

Posted 4 months ago

Volodymyr R

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

Posted 4 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 5 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 5 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 5 months ago