Garage Door Insulation Kit: The Best You Can Buy Today

By Jack | Resources

Aug 01
Matador Garage Door Insulation Kit for 8-Foot Tall Door

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Most people buy a garage door insulation kit thinking that it will make the space more bearable in the summer or winter months. A good majority of them soon become disappointed. That’s because they misunderstand statistics that say insulating your garage doors can cut energy loss by at least 70 percent. That might not be a very accurate portrayal of garage door insulators.

Don’t get us wrong; a garage door insulation kit can help keep your garage colder in the summer and warm in the winter. However, it is not magic. You will still need to supply heating or cooling to your garage. Plus you should also insulate the walls and ceiling. Now that you have your expectations leveled, you will be better suited to choose the best insulation kit for your needs.

What to Look for in a Garage Door Insulation Kit

Reach Barrier 3009 Garage Door Insulation Kit 1

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When you are choosing a garage door insulation kit, there are some terms and concepts that you will encounter. Understanding these terms will help you in buying the best garage door insulation kit.

Coverage

Choose a garage door insulation kit that has roughly the same width and height as your garage doors. Doing so will help you save time and effort trying to cut them down to the right size. Some manufacturers might also use materials that don’t yield easily to cutting. A garage door insulation kit usually has eight panels included, so divide the length of the door by eight and get the kits that offer that width.

Insulation rating or R-value

The R-value is an indicator of how effective the garage door insulation kit is. The R-value represents the insulation rating of the panels, and the higher this number is, the better. However, an insulation kit with a high R-value will typically cost you a lot of money. Strike a balance between the insulator’s efficiency and your budget.

Materials

A garage door insulation kit can use any one of these four materials: cellulose, fiberglass, rigid foam, and spray foam.

Cellulose

Cellulose is made using recycled materials such as newspapers. The manufacturer treats it so that it doesn’t catch fire quickly. Cellulose insulation is also an excellent choice if you want to keep rodents out. However, because cellulose is loose, it’s rarely an efficient form of insulation for garage doors as it can let the air pass.

Rigid foam

Rigid foam insulation is made up of large polystyrene sheets that you can cut according to the size and shape that you need. This insulation type is an excellent choice if you have irregularly shaped or sized garage doors, but you must make sure that you cut it correctly so that it fits seamlessly when you place it. Otherwise, those little cracks will allow moisture and the cold in. Choose rigid foam materials that are fire-resistant.

Spray foam

Spray foam insulators are expensive, but the additional money you spend on these will be worth it. This material can shield out moisture and keep the cold out better than other types of insulation because it can quickly seal small cracks and spaces.

Fiberglass

Batt insulation uses fiberglass that you can buy either pre-cut or in rolls. If you are on a budget, fiberglass insulation is your best bet.

Other things that you should look for in the best garage door insulation kit

A good garage door insulation kit will help you keep the noise out, as these products can give you some level of soundproofing. You should also check if the insulation kit you’re planning to buy contains toxic materials. Avoid these kits, as they can be very harmful to your health.

Benefits That You Get from Buying the Best Garage Door Insulation Kit

Reach Barrier 3009 Garage Door Insulation Kit 3

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Installing a garage door insulation kit has a lot of benefits. It can help you save energy. With proper insulation, you won’t need to heat your garage as much, enabling you to cut down on gas or electric bills. It can also help to make your garage door last longer. A garage door insulation kit can protect your garage door from dents, as well as keep it safe from the elements.

Soundproofing is also another benefit that you can get from insulating your garage door. Depending on the material you choose, a good garage door insulation kit will be able to keep the noise in or out. Further, insulation can help protect what’s inside your garage. For instance, an excellent insulation kit will be able to keep the area warmer during the colder months, which means your car battery will be less likely to die on you. It can also lessen moisture and the possibility of ending up with mold.

How We Chose

To come up with this list of recommendations for the best garage door insulation kits you can find right now, we checked out the opinions of several home improvement and car blogs and websites. We also researched each one of the highly-rated products on Amazon. We have no business relationships with the manufacturers of the products recommended in this list.

Pricing: How Much Can You Expect to Spend?

The cost might be a consideration when it comes to choosing a garage door insulation kit that you can install yourself. High-quality insulation panels are usually more expensive than radiation barriers. Overall, however, you can expect to spend around $25 to $130 for the best products out there.

The Best Garage Door Insulation Kits You Can Buy Right Now

The garage is often underutilized because, quite frankly, it’s uncomfortable to stay there. A good garage door insulation kit will help you keep the temperatures bearable, while also allowing you to get other benefits discussed above. What are your choices?

4.3 out of 5 stars

Garage Door Insulation Kit- DIY---- R-9 Complete Garage Insulation Kit
  • Easy to install on most garage door makes and models- no specific fasteners needed
  • Safe for children and pets, no special tools needed
  • Improves comfort / reduces notice- adds warmth in the winter- cool in the summer
  • Fiberglass insulation with R-value 9- superior thermal performance

The Anco garage door insulation kit promises an easy installation for most garage door models. It does’nt need any special fasteners. This R-9 insulator is safe for kids and does not contain any toxic substances. The Anco kit uses fiberglass panels that can reduce noise coming in from outside. It measures 439.2 by 21.0 by 2.0 inches and fits any door measuring 9.0 by 7.0 feet. You can choose between white or gray for its colors.

The R-9 rating for this product means that it can regulate the temperature inside your garage better. If it is too hot out, it will still be bearable inside. If it’s cold outside, then the Anco garage door insulation kit will ensure that you can skip wearing the jacket while working in the garage.

Environmentalists love this product as it uses mostly recycled materials. Prices for this kit ranges from $85 to $130. It gets an average rating of 4.3 out of 5.0 stars on Amazon. And around 80 percent of reviewers give this a perfect 5.0-star rating.

4.4 out of 5 stars

Garage Door Insulation Kit - 8 Foam Panels
  • Quick and Easy to Install
  • Increase Comfort
  • Fits Single Car Residential Metal Garage Doors (Buy 2 for a double car door)
  • Panel Size: 20" x 54" x 1 1/2"
  • R-Value: 4.8

Metal garage doors are the worst when it comes to letting the heat through. Fortunately, you can get the Cellofoam garage door insulation kit to help keep things cool. This kit is a do-it-yourself product that has eight expanded polystyrene foam panels. The manufacturer promises to help you save on your monthly utility bill just by installing the product on your garage door.

Not only does it keep your garage cool, but it also helps to bring about a quieter atmosphere. It is also a breeze to install, usually needing less than an hour to put up. You will appreciate the kerfing at the back that allows you to bend the rigid styrofoam and fit it into the tracks. The Cellofoam garage door insulation kit has an R-value of 4.5 at 75 degrees Fahrenheit. Each panel measures 20.0 by 54.0 by 1.25 inches, and if that is too big for your garage door, you can easily cut it.

Pricing for the Cellofoam Garage Door Insulation Kit ranges from $60 to $75. It has an average rating of 4.4 stars out of 5.0 on Amazon.

4.3 out of 5 stars

SmartGARAGE- Reflective Garage Door Insulation Kit - 18'W x 7'H
  • EXTREMELY EFFECTIVE -reflect 97% of radiant heat, excellent resistance to Conductive flow of heat, creates an air pocket to obtain an R6 value insulation.
  • TWO REFLECTIVE SURFACES - made of supreme quality material - 4mm closed cell polyethylene FOAM (not a cheap bubbles) sandwiched between PURE ALUMINUM (not a polyester film) on both sides. Two reflective surfaces, twice more effective.
  • HEAVY DUTY DOUBLE-SIDED TAPE - comes with new and improved heavy duty double-sided tape, this tape can be used in Extreme hot and cold climates.

The IMP SmartGarage reflective garage door insulation kit measures 18.0 by 7.0 feet making it ideal for two-car garage doors. With a high R-value of 8.0, it can keep your garage warmer in the winter and colder in the summer. The manufacturer claims that it can reduce the temperature by as much as 8 degrees Fahrenheit in the summer. Indeed, you can save on your heating and cooling costs with this kit.

This IMP SmartGarage kit is easy to install with a clean look when you’re done. You can even do it alone, and you only need double-sided tape. It also uses non-carcinogenic and non-toxic materials. What’s more, you don’t have to spend too much for the kit, as you can get it anywhere from $95 to $110.

This kit gets an average rating of 4.3 stars out of 5.0 on Amazon. Of the total number of reviews, around 81 percent has either a 4.0- or 5.0-star rating.

4.3 out of 5 stars

Matador Garage Door Insulation Kit for 8-Foot Tall Door Large
  • Fits most standard pan style 8-foot and 9-foot garage doors
  • Includes 8 high-impact polystyrene laminate panels 23.25" H x 54" W x 1.25" Thick
  • Helps reduce heating and cooling costs; Makes garage more quiet and comfortable
    Panels scored for easy installation; No special tools required
  • Bright white, easily washable surface
  • Insulation value of R4.8

The Matador Garage Door Insulation Kit allows you to use your garage as a workshop, an exercise area, a place for band practice, or recreation room. This kit helps to keep the garage warm in the colder months and cooler in the summer. The Matador kit can fit any pan style door that measures 8 to 9 feet. With an R-value of 4.8, you should not expect too much energy savings with this kit.

The Matador garage door insulation kit includes eight panels are made of polystyrene laminate. You can wash and clean these panels, ensuring that your garage door will look beautiful even as years pass. It comes in two sizes: the large and the XL varieties. The large version measures 20.3 by 54.0 by 1.25 inches, and you can buy it anywhere from $85 to $95. Meanwhile, the XL panel measures 23.3 by 54.0 by 1.25 inches and costs a little bit more at $95 to $105. There are eight panels in each kit.

With more than 450 reviews, the Matador Garage Door Insulation Kit receives an average rating of 4.3 stars out of 5.0 on Amazon. Around 86 percent of the reviewers give this product a 4.0- or 5.0-star rating.

4.2 out of 5 stars

NASA TECH White Reflective Foam Core 2 Car Garage Door Insulation Kit
  • NASA Tech White Reflective Foam Core 2 Car Garage Door Insulation Kit 16FT (WIDE) x 8FT (HIGH) R Value 7.5 Made in USA New and Improved Heavy Duty Double Sided Tape (ALSO FITS 16X7) Increaes R Value Up to 8.
  • Increaes R Value Up to 8 / Sound Reduction Technology.
  • Made In USA / Super Fast Shipping / Ships Same Day.
  • Easy to Install Instructions / Telephone Support for any install Questions.
  • New and Improved Heavy Duty Double Sided Tape, Squeegie & Razor.

Measuring 16 by 8 feet wide, the NASA TECH white reflective foam core garage door insulation kit is an American-made kit that offers an R-value of 7.5. As such, it can work better at keeping your garage at a more comfortable temperature and help bring your energy bills down. It can also stamp both heat and moisture out.

The NASA TECH insulation kit has a foam core, one reflective surface, and a white vinyl finish on the opposite side. You might need a little more preparation and installation time for this kit as it uses clips for you to put it up. However, once you finish installing the whole thing, you will appreciate just how beautiful it looks.

Prices for this kit range from $90 to $110. It gets an average rating of 4.2 stars out of 5.0 on Amazon. Around 78 percent of reviewers give this NASA TECH kit a 4.0- or 5.0-star rating.

4.1 out of 5 stars

Owens Corning 500824 Garage Door Insulation Kit
  • Designed for use on insulated metal garage doors; Fits neatly into the exposed channel of the door
  • 5 times better thermal performance (As compared to an insulated door)
  • 20-Percent reduction in noise level (as measured in standard human listening studies)

The Owens Corning 500824 insulation kit is designed to insulate metal garage doors and can lessen noise by up to 20 percent. Thermal performance is rated to be five times better than that of an uninsulated door. It also helps brighten up your garage.

The eight fiberglass panels in this kit measure 22.0 by 54.0 inches each. That is enough to insulate a garage door up to 9.0 feet in width. These panels have an R-8.0 insulation efficiency rating. With a white vinyl finish, you can keep this insulation kit clean over time. It is also easy to install. However, you will need to fasten it with clips to hold it in place.

On Amazon, more than 200 reviewers rate the Owens Corning 500824 Garage Door Insulation Kit 4.1 out of 5.0 stars. Looking at the breakdown, three out of four reviewers give this product a 4.0- or a 5.0-star rating. Pricing for this Owens Corning kit ranges from $85 to $100.

3.7 out of 5 stars

Reach Barrier 3009 Garage Door Insulation Kit
  • Reach Barrier(Tm) Reflective Insulation And Bubble Barrier Technology Blocks Up To 95-Percent Of Radiant Heat Which Will Help Save Energy And Money
  • Panels Include 2 Layers Of 5/32-Inch Barrier Bubble Laminated Between 2 Layers Of Radiant Barrier
  • Exceeds New Fire Codes And Requires No Maintenance Easy To Use And Install Pre-Cut Panels Require No Protective Clothing Or Special Tools When Installing

The Reach Barrier 3009 garage door insulation kit is an excellent choice for those people who are looking for something that will fit their budget. This kit sells for anywhere from $25 to $45. At that price, it can cover a garage door that measures 8 by 8 feet.

Installing the Reach Barrier 3009 garage door insulation kit is a breeze; you only need permanent bond tape and the panels are included in the kit.

According to the manufacturer, this kit can block 95 percent of the radiant heat that goes through your garage doors. It can also reduce noise. It also has a Class A fire rating, which means that it has a lower flame spread. Class A or Class 1 is the highest degree of fire resistance. Lastly, you do not have to fret about mold or mildew growing on this insulator.

The Reach Barrier 3009 insulation kit has an average rating of 4.1 stars out of 5.0 on HomeDepot.com. However, it has a lower score on Amazon, where it gets 3.7 stars out of 5.0. Around 71 percent of these reviewers, however, give it a 4.0- or 5.0-star rating.

4.4 out of 5 stars

Reflectix BP24050 24-Inch-by-50-Foot Bubble Pack Insulation
  • This product adds a great value
  • Product is highly durable and easy to use
  • This product is manufactured in China

The Reflectix BP24050 double reflective insulation measures 24 by 50 inches and can reflect 97 percent of radiated heat. The square edge roll with bubble foil material can keep moisture out. The Refelectix BP24050 kit has a Class A fire rating. The manufacturer says that the product is made with non-toxic and non-carcinogenic materials.

The Reflectix BP24050 insulation kit has an average rating of 4.4 stars out of 5.0 on Amazon. A majority of reviewers, at 93 percent, give this product a 4.0-star rating or better. You can buy this product for prices ranging from $30 to $45.

A Word About R-Values

Some of the garage door insulators that we included in the list, such as the Reflectix BP24050 and Reach Barrier 3009 garage door insulation kit, do not mention a fixed R-value. That is because these are radiant barriers that reflect the heat out in the summer or back in during the winter months. R-values are for those that absorb heat to delay the transfer of heat. Radiant barriers don’t absorb heat and as such, do not have an R-value.

Reflectix, however, provides a range of R-values that you can get only when its product is installed correctly and within specifications. Otherwise, the company does not guarantee this R-value for its products.

The Garage Door Insulation Kit that You Should Buy

A garage door insulation kit can help you save on costs and ramp up on comfort. There are several products that you can consider if you want the best. If you need maximum insulation, then get the Anco garage door insulation kit with an R-value of 9.5. If you’d like to save money while still insulating your garage, you can get radiation barriers. You’ll find the Reach Barrier 3009 and Reflectix BP24050 priced from $25 to $45.

Depending on what you need, there are the others listed here that allow you to balance between high prices of top quality kits with the efficiency. For instance, you can opt for the Cellofoam insulation kit that sells for around half the cost of the most expensive product on this list, but only has an R-value of 4.5.

Now, we’d like to know what you think. How did you decide on the best garage door insulation kit? Tell us about it in the comments.

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