If you are heating your garage full time, you definitely want to insulate! Even if you aren’t heating your garage full time, there are still some benefits to insulating your garage. While it won’t affect the efficiency of the insulation in your house, the garage will feel more comfortable and keep the contents of your garage warmer than if the garage was not insulated. If you are drywalling the garage walls, it makes sense to insulate the walls prior to drywalling since it’s easier to insulate the wall cavities before a solid surface is installed. Click here to learn more about insulating a garage.