I was having a slight issue with my garage door and thought it might possibly be the spring. I called and spoke to Matt. He said he would be out in 30 minutes to take a look and provide a free estimate. He arrived on time, was very knowledgeable and professional. After checking the door, he noticed that the belt was mistakenly on the inside of the carriage assembly instead of the outside. He quickly unscrewed the carriage and put it back on with the belt on the outside. This seemed to resolve the issue. I don't write many reviews but I wanted to take the time to pass on what a good and honest company this is. If you are having garage troubles, I encourage you to call Matt and utilize GT Garage Door repair.