Mr. David Jones serviced my central heating system on Thursday December 1, 2016. My Jones arrived on time and was very professional in his appearance. He explained why he was here and explained in detail everything that he was checking and/or adjusting. He was very courteous and answered all questions that I had. He gave suggestions to what I could do to improve the system's usage. My Jones seems very competent in what he was doing and I was very pleased with the quality of work that he performed at my residence.
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