Well, in a nutshell, experience. The first garage door that I ever worked on was in December 1977. It was a one piece metal swing door that we in the industry call a “Shin Buster” door. As of this writing that’s 34 years ago. The first 15 years I worked on garage doors part time, then in 1995, I started working on them full time. With 34 years of experience means that there is probably not a garage door repair issue that I haven’t seen before. Many a time I have replaced broken springs, reset doors, diagnosed garage door problems and installed new garage doors. Give me a call with the confidence that your garage door or garage door opener problem will be repaired and repaired correctly; 770-720-7828, or visit our web site at www.covenantgaragedoors.com.