When winter hits Ohio it forces many handymen and mechanics to take their projects indoors. This means that they often retreat to the garage, which often times is not much warmer than the outside air. A garage door can impact the temperature of a garage. Some are made thicker with more insulation while others are not. To make a current garage more energy efficient, a homeowner may want to consider insulating the garage’s walls and ceiling. This can be less costly than purchasing a new garage door. On the downside, installing insulation can be a messy and time consuming job.