The 6 Best Garage Door Insulation Kits for Temperature Control

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Best Overall Garage Door Insulation Kit

Reach Barrier Reflective Air Garage Door Insulation Kit

69.9532% OFF$47.51 at Amazon

The best garage door insulation kit for your home is the one that fits your needs regardless of what might be best for your neighbors. However, one kit that meets many homeowners’ needs is the Reach Barrier garage door insulation kit. It’s a budget-friendly reflective insulation solution consisting of eight 24-inch-by-48-inch panels of trimmable, 20% recycled material. The kit includes self-adhesive fasteners for simple installation, and the materials won’t require protective clothing to install.

While the product doesn’t state its insulating ability or R-value (rating of a material’s ability to resist heat transfer), its high average consumer ratings attest to the fact that it’s effective against heat and cold transfer. The product works best for single garage doors of 8 feet wide or less, or double garage doors 16 or fewer feet wide with the purchase of two kits.

Pros

• Deflects heat in summer and retains heat in winter
• Long-lasting adhesive
• Easy installation (no special tools necessary and panels are pre-cut)
• Budget-friendly price
• Made from 20% recycled material

Cons

• R-value not stated

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Best Value Garage Door Insulation Kit

US Energy NASATech Garage Door Reflective Insulation Kit

$118.77 at Amazon

A major deciding factor when searching for energy-efficient solutions is ensuring you get the most value for your money. One such product that meets that need is the US Energy NASATech garage door insulation kit. It provides an impressive R-value of eight, which means roughly 90% of heat flow is blocked, while offering everything you need for installation at a reasonable price.

Four trimmable rolls come in the kit, making it compatible with multiple, double garage door sizes up to 18 feet wide. Heavy-duty, double-sided foam tape, as well as instructions, a squeegee for door preparation and a utility razor knife are included, so all you’ll really need is a few hours available for installation.

Pros

• Kit includes everything necessary for installation
• Reasonably priced
• R-value of eight
• Comes in rolls instead of panels for versatility
• Fits doors up to 18 feet wide

Cons

• Rolls may be more difficult to handle than pre-cut panels

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Best Budget Garage Door Insulation Kit

Cellofoam Garage Door Insulation Kit

Available for $74

Saving money is one of the primary reasons to pursue energy efficiency, whether in the home or garage. To that end, thus budget-friendly garage door insulation kit from Cellofoam can save you money right from the start. The kit consists of eight moisture-resistant and durable, expanded polystyrene foam (EPS) panels, which are trimmable to fit individual sections of garage doors up to 9 feet wide (or 18 feet wide with a pair of kits).

The R-value for this kit is just over four, and the product is washable after installation to keep it looking good. However, the panels are just 20 inches tall, meaning the kit will only fit 7-foot tall garage doors.

Pros

• Won’t break the bank
• Fits single garage doors up to 9 feet wide
• EPS material is durable and moisture-resistant
• Installed product is washable

Cons

• Won’t fit garage doors taller than 7 feet

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Best Garage Door Insulation Kit for Easy Installation

Owens Corning Garage Door Fiberglass Insulation Kit

Available for $118

Installing garage door insulation is just one part of how to heat a garage when temperatures drop, and it doesn’t have to take all weekend. This garage door insulation kit from Owens Corning claims installation takes just an hour, and several reviews mention the kit was not only easy to install, but took less time than stated. Additionally, as a fiberglass insulation, the fibers fill gaps nicely at the edge of the door panels.

Installation involves adhering one-half of the retaining clips to the door and securing the pre-cut, trimmable panels with the other half of the the clips. The kit provides an R-value of up to eight, and is designed for single garage doors with channels to hold the insulation panels in place at the edges.

Pros

• Installation takes under an hour
• R-value of eight
• Fiberglass insulation fills gaps at panel edges
• Includes protective gloves, adhesive and clips

Cons

• Only for use on garage doors with channels
• Fiberglass insulation requires protective clothing for installation

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Best Looking Garage Door Insulation Kit

Matador Garage Door Insulation Kit

$144.99 at Amazon

Since we often focus on function over aesthetics, the backside of a garage door isn’t typically classified as “pretty.” However, the Matador garage door insulation kit adds visual improvement while providing up to a 4.8 R-value to your door. Available in two sizes, the large one is for 7-foot doors while the extra-large version is tall enough for 8-foot tall doors.

The kit consists of eight EPS, trimmable panels for a single garage door up to 9 feet wide. Installation simply involves cutting the panels to fit and bending them slightly for insertion into the channels at the edges of each door section. Proper installation yields a clean appearance that looks like it came that way from the factory.

Pros

• Final appearance mimics factory installation
• Comes in two sizes
• R-value of 4.8 (good for thin insulation)
• Friction fitting requires no special adhesives or tools

Cons

• Garage door requires channels for proper fit
• Panel cutting must be precise

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Best Splurge Garage Door Insulation

Kraken Bond FastCoat Spray Foam Insulation Kit

$251.90 at Amazon

There are some concerns about applying spray foam insulation to the inside of a garage door: The potential for product degradation over time, as well as questionable adhesion to some surfaces. However, if you’re seeking a high R-value of up to seven per inch of thickness and have some spare change in your pocket, Kraken Bond FastCoat spray could be just what your garage needs.

Kraken offers a variety of spray foam insulation and accessories. This kit includes 12 cans of spray foam, a spray gun attachment and gun cleaner for wrapping up the job, as well as safety goggles and gloves. The 12 cans cover up to 240 board feet at 1-inch thick, which should be more than enough for a full-size, two-car garage door. Installing spray foam insulation is usually a job for professionals. However, with patience, prep work and plastic sheeting on the garage floor, it’s a doable DIY garage project.

Pros

• Includes reusable spray-foam application gun, foam cleaner, safety goggles and gloves
• Installation requires no measuring or cutting
• Provides enough foam for a two-car garage
• R-value of seven

Cons

• Prep work is necessary for good results
• Product may degrade over time

Does Styrofoam garage door insulation work?

Styrofoam is, in reality, a trademarked name for a product manufactured by DuPont. Most often, what’s called Styrofoam is really expanded polystyrene (EPS). EPS is excellent for use as garage door insulation, due to its relatively high insulating value and reasonable cost.