I had a maintenance check up today under a service contract. It is a fairly new HVAC unit - installed in 2008 and I've had it serviced a number of times since then. Today's technician's name was Mark. He did an outstanding job...including a 'spic n span' cleaning and he eliminated a metallic rattle in the ductwork that has probably been there for the past 15 years. He represented Horizon in an exceptional manner.
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