--- product_id: 1217137 title: "Indoor Kit Covers 5 - 3' x 5' Windows" brand: "3m" price: "€ 29.66" currency: EUR in_stock: true reviews_count: 13 category: "3 M" url: https://www.desertcart.ie/products/1217137-indoor-kit-covers-5-3-x-5-windows store_origin: IE region: Ireland --- # Energy-saving insulation Prevents frost buildup Quick, wrinkle-free install Indoor Kit Covers 5 - 3' x 5' Windows **Brand:** 3m **Price:** € 29.66 **Availability:** βœ… In Stock ## Summary > 🏑 Winter-proof your space with invisible energy armor! ## Quick Answers - **What is this?** Indoor Kit Covers 5 - 3' x 5' Windows by 3m - **How much does it cost?** € 29.66 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/1217137-indoor-kit-covers-5-3-x-5-windows) ## Best For - 3m enthusiasts ## Why This Product - Trusted 3m brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Crystal Clear Comfort:** Virtually invisible film keeps natural light flowing. - β€’ **Effortless DIY Upgrade:** Easy peel-and-stick tape with shrink-to-fit filmβ€”no pro needed. - β€’ **Fits Five Standard Windows:** Covers multiple 3'x5' windows in one sleek kit. - β€’ **Seal in Warmth, Slash Bills:** Cut heating costs with airtight window insulation. - β€’ **Frost & Condensation Fighter:** Stops moisture buildup for clearer, cozier windows. ## Overview The 3M Indoor Window Insulator Kit is a five-pack solution designed to reduce heating costs by sealing cold drafts and preventing frost buildup on indoor windows. Featuring clear shrink film and double-sided mounting tape, it fits five 3'x5' windows and installs quickly for a wrinkle-free, transparent finish that maintains natural light. Ideal for energy-conscious homeowners seeking an easy, effective winter insulation upgrade. ## Description desertcart.com With the 3M indoor window insulator kit, you can lower your heating bills during the winter and make your home more energy-efficient. Part of 3M's line of energy-saving products, this kit includes window insulation film and a roll of double-sided mounting tape to create an airtight seal. Stretching the film removes wrinkles for a transparent view. This version of the 3M indoor window insulator kit enables you to insulate five 3-foot-by-5-foot windows.Keep the Heat In and the Cold Out Made by 3M, this indoor window insulator kit contains window insulation film along with Scotch Window Film Tape to keep cold drafts out and warm air in. As a result, you can reduce your heating costs during the winter. The film shrinks tight around your window for a transparent, wrinkle-free fit and is made to reduce condensation and prevent frost build-up. Double-Sided Mounting Tape for a Secure Seal Included with this kit is a 1/2-inch-by-27-7/10-yard roll of 3M window film mounting tape to keep your insulation in place all season long. This double-sided tape seals off cracks and crevices, creates an airtight seal, and establishes a strong bond between the surface, the tape, and the insulation film, as recommended in ENERGY STAR's "Seal and Insulate" guidelines. Featuring a convenient, ready-to-peel liner, the tape adheres easily to a variety of surfaces and stays intact upon removal.Simple, Fast Installation Installing the window insulation is easy. You simply unfold the film and cut it to the width of the window, allowing an extra inch on all sides. Next, you firmly apply the mounting tape around the window frame and remove the paper liner. Then you apply the film to the tape, starting at the top of the window, and reposition and stretch the film to remove wrinkles. Finally, you use a blow dryer to remove any remaining wrinkles, then trim any excess film.Made in the United States, and designed for indoor use only, this insulator kit can be used with aluminum, vinyl-clad, or painted or varnished wood molding, but it should not be applied to veneer paneling or Lauan mahogany molding. The film and tape should be removed from the window at the end of the season. The film measures 10 square yards, or 5.16 feet by 17.5 feet by 0.75 thousandths of an inch (H x W x D), and weighs 0.33 pounds.What's in the Box Window insulation film and one roll of mounting tape. Product Description Available in a variety of indoor and outdoor window sizes. 3M Window Insulator Kits keep cold drafts out and warm air in through heat shrink window film and Scotch Window Film Mounting Tape. 3M window kits have the clearest film and stay up all season long with Scotch tape technology. Scotch double sided tape holds firmly between films and surfaces. From the Manufacturer Get your home ready for winter with 3M energy solutions. Our window insulator kits are easy to install, and help keep your utility bill low during the cold months. Plus they use Scotch Window Film Mounting Tape and have the clearest film. The cost of heating your home may be rising, but there's something you can do. 3M window insulator kits help keep the warm air in and cold drafts out. And your energy bill down. Review: Works great! - I bought this kit 2 winters ago. We have a ranch house on the side of a mountain and it gets very cold. Combine that with really crummy old windows and our house was freezing. Not good when you pay for home heating oil!!! It was so bad at one point that when it was windy outside, I actually witnessed the drapes in my house billowing into the room. That is when I decided to purchase this kit. I actually got 2 kits to make sure I could finish all the windows in my house, and I ended up having plenty left over. I installed the double sided tape and stuck on the plastic, used the blowdryer to warm it up and shrink wrap the windows, and I was done. No more draft or chilly rooms! You are supposed to take it off after each winter but I have left it on for 2 years now. I find it also keeps my house cooler in the summer. Combined with thermal drapes, you have a combination for energy savings. PROS: - sticks great and lasts for a long time -once you get the hang of it, its easy to install -really has saved us money on home heating oil CONS: - if you don't totally shrink the plastic, you can see the ripples from the outside of the house and it looks a little messy, but if you do it right it is crystal clear -it is awfully hard to get the double stick tape off if you leave the product up for a long time We are now going into our third winter with the same kit on our windows and we are only now noticing some of the windows are losing their plastic in some places, peeling etc. But thats to be expected when its only supposed to be left on for a shorter period of time. Review: Easy and Effective Solution for Drafty Windows - The 3M Indoor Window Insulator Kit is a simple yet highly effective way to improve comfort during colder months. The kit comes with everything needed to cover multiple windows, and the installation process is straightforward. Once applied and shrunk with a hair dryer, the film becomes nearly invisible while creating an extra barrier against cold drafts. I was impressed by how much warmer the room felt after installation. It helped reduce chilly air coming through older windows and made the space more comfortable without blocking natural light. The film stayed securely in place throughout the season and removed cleanly when no longer needed. For anyone looking to improve energy efficiency and reduce heating costs, this kit offers excellent value and noticeable results. Pros -Helps reduce drafts and heat loss -Clear film becomes virtually invisible after installation -Easy to install with included tape -Covers multiple windows in one package -Allows natural light to pass through -Can help improve indoor comfort during winter Cons -Installation requires some patience to avoid wrinkles -Hair dryer needed for best results -May not adhere as well to dusty or uneven surfaces -Film can tear if handled too roughly during installation Overall This 3M Indoor Window Insulator Kit is a practical and budget-friendly way to winterize your home. The difference in comfort is noticeable, especially around older or drafty windows, and the finished appearance is clean and unobtrusive. If you're looking for an easy seasonal home improvement project that can help keep your home warmer, this kit is well worth considering. ## Features - Saves energy and reduces heating costs - Reduces condensation and prevents frost buildup - Quick and easy installation - Fits five 3'x 5' indoor windows - 1 year Limited Warranty: This 3M product will be free from defects in material and manufacture. If this product is defective, your exclusive remedy shall be, at 3M's option, replacement of the product or refund of the purchase price.Limitation of Liability: 3M will not be liable for any loss or damage arising from this product, whether direct, indirect, special, incidental or consequential ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00002NCJI | | Best Sellers Rank | #11,202 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #16 in Weatherproofing Window Insulation Kits | | Brand | 3M | | Brand Name | 3M | | Coverage | 5' x 3' | | Customer Reviews | 3.9 out of 5 stars 15,576 Reviews | | Global Trade Identification Number | 00051131500242, 05113150024217 | | Included Components | 1 Folded Film 2 Rolls of Tape 1 Instruction Sheet | | Item Highlight | Indoor Window Insulation Film Kit Helps Keep Cold Drafts Out, Warm Air In, And Reduce Condensation And Frost Buildup | | Item Thickness | item_thickness.string_value inches | | Item Type Name | weatherproofing-window-insulation-kits | | Item Weight | 5.28 ounces | | Manufacturer | 3M | | Manufacturer Part Number | 2141-EP | | Manufacturer Warranty Description | Warranty | | Material | Plastic | | Material Type | Plastic | | Model Number | 2141W-6 | | Number of Items | 5 | | Recommended Uses For Product | Insulating indoor windows to save energy, reduce heating costs, and prevent frost buildup | | UPC | 051131500242 | | Unit Count | 1 Count | ## Product Details - **Brand:** 3M - **Global Trade Identification Number:** 00051131500242, 05113150024217 - **Item Thickness:** item_thickness.string_value inches - **Material:** Plastic - **Recommended Uses For Product:** Insulating indoor windows to save energy, reduce heating costs, and prevent frost buildup ## Images ![Indoor Kit Covers 5 - 3' x 5' Windows - Image 1](https://m.media-amazon.com/images/I/818LKTgh1zL.jpg) ![Indoor Kit Covers 5 - 3' x 5' Windows - Image 2](https://m.media-amazon.com/images/I/81nZBsNgncL.jpg) ![Indoor Kit Covers 5 - 3' x 5' Windows - Image 3](https://m.media-amazon.com/images/I/5170GQGCItL.jpg) ![Indoor Kit Covers 5 - 3' x 5' Windows - Image 4](https://m.media-amazon.com/images/I/51VpP3HgV3L.jpg) ![Indoor Kit Covers 5 - 3' x 5' Windows - Image 5](https://m.media-amazon.com/images/I/61VlTGUSPLL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Will this work for insulating from the heat of a hot climate too?** A: I would assume so, though we live in Maine near the coast where it can be in the teens and 20s sometimesduring the weather; I assume it would work since 3M is an excellent product - the hardware versionsdon't seem to work as well. You'll need the 3M tape for this as well. **Q: Has anyone had success applying this to a window without trim? Our 50s track house just has drywall-cased windows.** A: I want an answer to this too! I also have the drywall-cased windows from the 50s. Thanks!! **Q: I am from the South, so my big question is, does it insulates from heat so well as it does from cold? Will it last if you leave it permanently, or you need to replace it every year? Third question would be, can you glue it against dry wall? Thanks** A: Old query, but for newbies: this would work as well to keep the A/C air away from the window pane, thus it would insulate heat as well as cold. It's just physics. It forms a dead air space just like a storm window (if you know what those are up north). You could leave it on, but probably would not last permanently. I don't see how you could use glue; it is intended to be mounted only with the double stick tape provided in the box. Browse other replies who have said that they applied it directly to dry wall (sheet rock). BTW another response said: β€œYes but you can run into a moisture issue. We tried it and it it worked well except that the A/C created condensation on the plastic which eventually pooled up between the window and the plastic creating mold” **Q: How does this hold up compared to frost king?** A: This holds up much better then frost king... I have never had frost king last a whole season on my windows but the 3M lasts no matter how long the cold season has lasted. I will never go back to using Frost King again. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great! *by D***N on January 10, 2016* I bought this kit 2 winters ago. We have a ranch house on the side of a mountain and it gets very cold. Combine that with really crummy old windows and our house was freezing. Not good when you pay for home heating oil!!! It was so bad at one point that when it was windy outside, I actually witnessed the drapes in my house billowing into the room. That is when I decided to purchase this kit. I actually got 2 kits to make sure I could finish all the windows in my house, and I ended up having plenty left over. I installed the double sided tape and stuck on the plastic, used the blowdryer to warm it up and shrink wrap the windows, and I was done. No more draft or chilly rooms! You are supposed to take it off after each winter but I have left it on for 2 years now. I find it also keeps my house cooler in the summer. Combined with thermal drapes, you have a combination for energy savings. PROS: - sticks great and lasts for a long time -once you get the hang of it, its easy to install -really has saved us money on home heating oil CONS: - if you don't totally shrink the plastic, you can see the ripples from the outside of the house and it looks a little messy, but if you do it right it is crystal clear -it is awfully hard to get the double stick tape off if you leave the product up for a long time We are now going into our third winter with the same kit on our windows and we are only now noticing some of the windows are losing their plastic in some places, peeling etc. But thats to be expected when its only supposed to be left on for a shorter period of time. ### ⭐⭐⭐⭐⭐ Easy and Effective Solution for Drafty Windows *by K***E on September 8, 2026* The 3M Indoor Window Insulator Kit is a simple yet highly effective way to improve comfort during colder months. The kit comes with everything needed to cover multiple windows, and the installation process is straightforward. Once applied and shrunk with a hair dryer, the film becomes nearly invisible while creating an extra barrier against cold drafts. I was impressed by how much warmer the room felt after installation. It helped reduce chilly air coming through older windows and made the space more comfortable without blocking natural light. The film stayed securely in place throughout the season and removed cleanly when no longer needed. For anyone looking to improve energy efficiency and reduce heating costs, this kit offers excellent value and noticeable results. Pros -Helps reduce drafts and heat loss -Clear film becomes virtually invisible after installation -Easy to install with included tape -Covers multiple windows in one package -Allows natural light to pass through -Can help improve indoor comfort during winter Cons -Installation requires some patience to avoid wrinkles -Hair dryer needed for best results -May not adhere as well to dusty or uneven surfaces -Film can tear if handled too roughly during installation Overall This 3M Indoor Window Insulator Kit is a practical and budget-friendly way to winterize your home. The difference in comfort is noticeable, especially around older or drafty windows, and the finished appearance is clean and unobtrusive. If you're looking for an easy seasonal home improvement project that can help keep your home warmer, this kit is well worth considering. ### ⭐ Not sure why it got great reviews *by C***N on October 25, 2013* I know how reviews go- I know that usually you have that one person who got a dud or was temperamental or had bad intentions and I take one bad review in a slue of many with the gain of salt. I also seldom write reviews and I know that people are more motivated to write a review based on a negative experience than a positive one! I usually write about good experiences. This was not such an experience. I do agree with the other reviewers that it was a pain to do with their directions and the cutting was problematic, etc. I remember buying the packages for my storm doors, not realizing that it would cover both until I had already bought 2. Perhaps that was my error. The rest, I'm sorry to say, must have been the company's. I covered a large storm/patio double door, one quite large window that took up much of the wall (with some creativity on my part) and 3 other, over-sized windows (I say over-sized because they are a little wider than some and definitely longer. "luxury windows" except for the fact that they leak air like you wouldn't believe!). I spent some money here, folks. What is that? A storm door, lets say 2 or 3 sheets for the wall sized window (maybe a triple window size) plus 3 more? It didn't break the bank but hey- I wasn't buying new windows. It shouldn't have come close to breaking any bank. I have convinced myself that this helped in some way but honestly I'm not sure. I really hardly ever say I will never buy this product again but I will not. I feel like this was such crap. I had faith in 3M but they obviously spent all their money in the packaging of the product. It did not take long for me to notice that I had lines or wrinkles in the paper. This usually meant that a spot had come unstuck or needed to be heated more. I found this material very temperamental to the blowdryer. I remember my family using these in the 90's. I watched them use it and I've used it since then. You would think that products would have improved over time(non-appliances specifically). If I tried to get wrinkles out of stubborn spots, it risked being ruined. So some of the film had creases which I feel that yes, my neighbors might have noticed from the outside on a sunny day. Not my preference as the window film became more obvious to onlookers as time went by! Most of the time when the wrinkles or creases would show up, it was because the product came unstuck. I read every bit of the information. I also installed enough of them and not in the same day (because who the heck has that kind of time?) so you would think that at least the last few that I did would turn out flawless. It was such a hassle to babysit these windows and when it was obvious that they weren't sticking I just sort of threw in the towel because I was so annoyed with all the time I wasted trying to monitor something so simple and stupid. A person should be able to put something up in their home and then trust that it does what it's supposed to do. I don't remember when I gave up on each window but I know that it didn't take long before corners or sections of sides were having to be redone over and over again, so obviously they were losing their adhesiveness. I tried to mend by pulling off those sides and re-taping but again, it only lasted a matter of time. I swear, this was such an annoying experience. As if putting this on your window isn't bad enough. I feel like this company really takes advantage of people who cannot afford or are unwilling to replace whole windows and insulation. They prey on people who actually need a quick fix. We were still dreadfully cold in our basement area with so many windows leaking heat. It was ridiculous. By the end of the season, removing the film from the windows was just upsetting because every single window had it coming off - not just a little. It was bad! I'm experienced in using these. I've had them since I can remember. I've never had this bad an experience. Never again. If you are smart, you'll shop around for a different brand. PS when I did my review search on this product, I had already heard that their tape sucked. I tried it on one window and it was true. I got the DUCT brand and the tape was better. Perhaps their film is better, too? Who's to say but what I can tell you is that either they make cheap tape AND film or people thought that the tape was the problem but it was the actual film. It also means that there are bigger and better products out there. This year, I'm back on the market. I hope no one from 3M calls me to offer me free film or some other product perk based on this review because I'll will decline with confidence. ## Frequently Bought Together - 3M Indoor Window Insulation, Insulator Kit for 5 Windows 3ft x 5ft, Keeps Cold Air Out and Warm Air In, Includes Heat Shrink Window Film and Scotch Window Film Mounting Tape (2141W-6) - XFasten Transparent Window Weather Sealing Tape, 2-Inch x 30 Yards (50.8mm x 27.43m), Clear Window Draft Isolation Sealing Film Tape, No Residue - 3M Outdoor Patio Door Clear Insulation Kit, Heat or Cold Window Insulation Kit for Large Windows and Sliding Doors, 1-Door Kit, 7 ft. X 9.3 ft. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ie/products/1217137-indoor-kit-covers-5-3-x-5-windows](https://www.desertcart.ie/products/1217137-indoor-kit-covers-5-3-x-5-windows) --- *Product available on Desertcart Ireland* *Store origin: IE* *Last updated: 2026-09-21*