Comfort planning for the actual floor plan
For a Granite Bay property, start with the layout and the equipment serving each part of the building. Additions, separate wings and rooms with substantial glass need their own discussion; total floor area alone can hide a room-level comfort problem.
Identify each thermostat and which rooms it controls. Heco can then discuss whether the concern calls for a repair, airflow work, a zoning evaluation or a separate ductless solution, rather than assuming every space needs a larger central unit.
For commercial hvac installation & replacement, bring separate wings and room loads into the scope discussion. Compare options on complete scope, planned interruption and serviceability. State what existing work is retained and which building or electrical changes are excluded, rather than presenting an equipment-only price as a turnkey project.