Stephen was prompt, knowledgeable, discovered a number of problems, and explained everything in detail. Besides the problem I knew about, he found a number of other things wrong, mainly a general lack of maintenance by previous owners. He got everything working smoothly and we are so pleased. A little pricey,
but with everything that was wrong, I'm not surprised. Certainly beats buying a complete new door and opener. Highly recommended. I will use again if needed.