Ed is very professional and knows his job and the equipment that he works on very well. He is committed to finding the problem and solving it. We have had a loud humming sound that no one else has ever been able to resolve (since 2009) and he has worked tirelessly to try to figure it out and fix it. He has been out twice and has been doing a great job taking things step by step to eliminate all possibilities and the heater is working quietly so far!
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