There are many different places in your home where you will need to install insulation. One place that many people miss is the garage door. If you insulate the attic and the rest of the walls in the home then forget to insulate the garage, you may be letting all of your heat out through that door. Garage Door Insulation can be purchased either aftermarket for doors that don’t have a space between it (i.e. in a reflective coating that keeps the hot sun away , or you can purchase a garage door that has built in insulation already. You may want to look into this as soon as possible if your electricity cost are skyrocketing.