Most commercial HVAC systems that underperform were compromised at installation rather than damaged later in service. Equipment sized from a rule of thumb instead of a load calculation, undersized or poorly sealed ductwork, improperly brazed refrigerant piping, and controls that were never properly configured all guarantee years of complaints that no amount of maintenance fully fixes. At Shoreline HVAC we handle commercial HVAC installation and equipment changeouts with load calculations and system sizing done first, followed by ductwork fabrication, refrigerant and hydronic piping, and controls and building automation integration. We do tenant fit-outs and full build-out installations the same way, because a system installed correctly costs less to own for its entire life.