Alexander recognized the problem with my garage door literally within one minute. I had thought the door opener was the problem, and had purchased a new one ready for installation. I even gave him the go ahead to install it after fixing what he felt was the problem. He completed the repair in no time and had my garage door working like new. He assured me I didn’t need to replace the door opener, so I could save money for when it actually needed replacing. I was really impressed by his honesty. Would certainly call again.