We may earn revenue from the products available on this page and participate in affiliate programs.Learn More ›
Whether you’re looking to convert your garage into a second living space or simply make it more comfortable for work, play, or just hanging out without freezing, a garage door insulation kit can help. Insulation itself won’t make a garage warm and toasty, but it will help retain heat. Adding this layer of insulation helps prevent heat from escaping and blocks cold air from entering the garage.
We carefully evaluated popular garage door insulation kits and tested those that made our shortlist for features like ease of insulation and how significantly they affected the temperature on the inside of the garage door. Our top recommendation is the
<ol><li><strong>BEST OVERALL:</strong>
Reach Barrier 3009 Garage Door Insulation Kit
Amazon.
Best Bang for the Buck
US Energy Products Double Bubble Reflective Foil
Amazon.
Upgrade Pick
US Energy Products Nasatek 2-Car Foam Insulation Kit
Amazon.
Best Reflective
US Energy Products Nasatek 1-Car Reflective Insulation Kit
Amazon.
Best Easy Install
Matador Garage Door Insulation
Jump to Our Top Picks
How We Tested the Best Garage Door Insulation Kits
Testing Stats
Products tested
5
Time spent testing
1 week
Tests performed
4 to 5
Price range
$30 to $130
While installing garage door insulation is generally simple, testing these products is difficult. First, we needed to understand that garage door insulation will not keep a space toasty warm; it’s not that type of insulation. As our test garage contained two bays, though, we left one door uninsulated while we installed the kits on the other. This gave us a reasonable “control” subject to test the doors against.
First, we installed each kit according to the instructions (some didn’t come with any). We used double-sided tape and adhesive squares to hold each strip in place. Then, we trimmed all the sheets to size with a razor knife. We then opened and closed the door several times to ensure the product had adhered properly.
Finally, we took note of the apparent noise transfer and temperature transfer through the garage door. It’s difficult to say which product was more effective since the temperatures and the sun’s position change throughout the day. However, each product appeared to be effective at reducing heat loss. We checked the insulated door against the uninsulated door and recorded the temperature readings.
Our Testing Scores
Ease of Installation
Performance
Sound Mitigation
Value
<tr><td>
