Garage door manufactures want hundreds of dollars for an insulation kit. A new insulated garage door can cost thousands. For about $100 you can insulate your garage door in about two hours. On the right, you can see the uninsulated section, on the left, the insulated panels. Our garage is also our laundry room, so it gets warm in the summer and cold in the winter, and it is not fun to do laundry there. When we bought the house, the previous owner had installed the cheapest aluminum garage…