Professional garage door installers have extensive training and have developed their skills over years of doing the job correctly and safely. However, Garage door installation and repair can be dangerous, especially with springs. In addition, the doors themselves pose a risk since they are large, heavy, and awkward to install if you don’t have the requisite experience. Moreover, the new garage door installation requires the use of electricity and a properly grounded power outlet. Therefore, installers should be familiar with electrical wiring as well. Professional installers will also test your new garage door to verify that everything is operating properly and safely after it is installed.