Easy Order Window Inserts Online
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Get an
EXTRA 15% Savings on all orders over $400*
or get an
EXTRA 10% Savings on all orders over $200*
*Act now, valid thru May 24, 2025. (*Discounts off product subtotal. The Discounts are automatic, no coupon code needed. Does not include shipping or Pay Invoice Online. "Save Up To" and "Total Savings" factors order & opening sizes, volume discounts and extra discounts.) Discounts are shown on View Cart & Checkout pages.
Ordering Options Explained:
Auto Numbering System

Room

Color

![]() Brown |
![]() Tan |
![]() White |
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Width
Width Fraction
Height
Height Fraction
Panel Split Options
Measure the Height & Width of Each Window Opening. Enter each window opening.
Measure the opening at the spot where you want the inserts to fit. An inch or more from the existing glass is preferred. Inserts are 1/2" thick.

For larger size windows check box for left/right or upper/lower type split choice
Use your actual sizes and do not adjust.
Tape/Fractions Help
Measure & enter each opening. Do include the fractions to the nearest 1/16th or 1/8th. Fractions are necessary. If using a laser tape measure be sure to properly include the inches and fraction. The fraction is often in a very small font.
Measure and order online.
Most orders ship within 10 to 15 business days.
Slide them in & enjoy comfort and savings.
Measuring Form (Excel xls file) - or - Measuring Form (pdf file)
Save first, print, complete & Order Online using one width and one height.
Measure the opening at the spot where you want the inserts to fit. An inch or more from the existing glass is preferred. Inserts are 1/2" thick, make sure you have room behind window treatments.
Use one width and one height to order online. Check the opening and record one width and one height. If needed, note all six measurements of any that are more than 1/4" off or odd.
Only email in the excel sheet (or pdf) after ordering if there are odd sizes, or if you want us to give you a quote.
For odd sizes or help ordering, email completed form to eric@windowinserts.com.
Please take a few minutes to watch our videos HERE. We really like how they turned out, and think they show what you need to know to confidently place your order with us. Answers to most questions can be found in the FAQ. Measure and order online. Most orders ship within 5 to 10 business days. Slide them in & enjoy comfort and savings. Measuring Form (Excel xls file) - or - Measuring Form (pdf file) Save first, print, complete & Order Online using one width and one height. Measure the opening at the spot where you want the inserts to fit. An inch or more from the existing glass is preferred. Inserts are 1/2" thick, make sure you have room behind window treatments. Use one width and one height to order online. Check the opening and record one width and one height. If needed, note all six measurements of any that are more than 1/4" off or odd. Only email in the excel sheet (or pdf) after ordering if there are odd sizes, or if you want us to give you a quote. For odd sizes or help ordering, email completed form to eric@windowinserts.com. Full Order Online Ordering and orders with large single panels or large multiple panel openings. Multiple panels can be used for larger openings comprised of two, three or more sections across. Larger sized openings including large single panel inserts, mulled together double sets of windows, and large three panel openings must be ordered in sets or multiples using this page or via email. PATIO DOOR SETS may or may not be feasible as part of a full order depending on order size and location. Full house or larger orders are encouraged and afford the best per window pricing and most efficient and affordable shipping in most cases. |
Mike & Dee Confirmed Purchase
Jul 14, 2019
We ordered another 36 window inserts and they arrived about 2 weeks after ordering. The ordering process is a breeze, there is a form available to download that will let you create names/numbers for your windows which will be important if you have as many as we did. Measuring is simple but make sure you take into account windows that are older and maybe out of square. The inserts are very forgiving as due to the weather stripping all around the frame your measurement can be off a little ( no more than 1/8 - 1/4") and still fit snug.
For larger windows we "split them" in the middle, ours were 27 3/4 x 64/14. This allows for easier transit and less likely to receive any damage in shipping. The inserts are shipped very, very well and we had no damage to any of the windows, over 50 pieces! It's easy as pie to place them in using the track piece and again the fit is snug. Immediately it was much quieter in the house, less bugs getting in through the old windows and the house stays amazingly cool now in the middle of summer!
The inserts are all but invisible, they are absolutely easy to place and remove. We do not have central air but use 3 window air conditioners. I simply ordered 2 inserts each for those 3 windows. 1 of those are full size for the winter to completely seal the window and the other 1 is measured to fit down to the AC unit to create a sealed window with the AC in.
Here is the final and last comment about doing business with Window Inserts. We had 1 window that I mis-measured and when I emailed them I had a quick response. They shipped me a new window at no charge without even questioning it. They knew it was my issue, not theirs but still stepped up and offered customer service that is more rare than common today. I had the pleasure of dealing with Jessica. She always responded promptly to my questions and was a complete professional. I know a lot of folks will still be on the fence about this product but I can say 1000% I am impressed with this product AND company and I will recommend them to everyone I know that may be looking to improve their home! Thank you Window Inserts, thank you Jessica and Eric!! We love your product and we love the way you treat your customers!!!!!!!
Mike & Dee from Silver Creek NY
Robert E Confirmed Purchase
May 25, 2020
Dawn D. Confirmed Purchase
Sep 10, 2018
It took us a couple days to get all of the inserts in place but once we had one room done there was a noticeable difference right away! It has really helped keep our home cool this summer compared to last summer.
We had an issue with our original order and Eric responded to us quickly and called the same day he got my email - on a saturday. He took care of the problem and was great to work with. We really appreciated his customer service and LOVE the product!
Michael H Confirmed Purchase
Sep 18, 2018
Andy Confirmed Purchase
Oct 23, 2018
I have a handful of original 1950's single pane awning windows in the bedrooms. Hard to get a perfect air seal and the glass radiates cold. I replaced the mesh bug screens with the inserts and they have stopped cold drafts seeping in before and dramatically reduced sound transmission. Bedrooms are very comfortable now.
In my basement I have some newer glass block windows. They do not leak any air and are well sealed, but the glass itself still radiates cold. I used these in front of them and now my basement stays pretty warm.
I even bought sets to use on my newer double pane windows and while there wasn't the degree of improvement compared to the single pane or glass block windows, there was still a positive improvement.
These are totally worth the money and a much better buy than replacing older windows that are still in good shape.