Matt B was very professional with his install of my Mitsubishi Split AC. Worked with me on location of both units and kept wiring and piping out of view in living area and up and out of the way in the basement. Matt offered but I didn't really need operational instructions since I had a 3 year old unit in my previous home. He was friendly and easy to deal with. He also completed the project in a timely manner, and did a good job with cleanup when done. I would recommend him and Key to anyone looking for a residential HVAC job. Jim M.
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