Jim gave our boiler an overdue service, and not only replaced the fan efficiently but took the time to answer all my questions about how the boiler and water heater works. My first impression was exactly right: Jim was courteous, efficient, meticulous and knowledgeable. He kept costs down where he could, and clearly wanted to make sure that he got everything working just right. He was easy to reach, and I’ll certainly work with him again. Recommended.