The average cost to purchase and install garage doors is $1,300, with a range from $785 to $3,700. Single-car garage door installation costs range between $1,000 and $1,300 on average, while a double garage door installation will usually cost between $1,500 and $3,500.
How much difference does an insulated garage door make?
The insulated door in the example above maintained a 48-degree difference between the outside and inside air, versus just a 26-degree difference for the uninsulated door. That means, in the uninsulated garage, your car is starting in temperatures that are about 10 degrees colder.