Did you know that having an uninsulated attached garage is like having an oven attached to your home on those hot summer days? And it’s like an icebox in the winter. The garage tends to hold the heat and cold for a long period of time, so your heat and air conditioner is working harder and costing you money. Insulating your garage door is one of the best ways to keep your garage temperature at a more moderate level making it easier on your heat and air conditioning system while saving you money.