AC or HVAC recommendation for Victorian house in Montrose

Does anyone have recommendations for a reliable company which can install AC in a large Montrose Victorian?  We have gas/forced air so have ducts but I need a company which can help design a system that may need zones, etc.  Many thanks. 

PSE&G had the most knowledgeable rep when I solicited bids for a forced air heating system 15 years ago.
I suspect that expertise would carry over to AC.

The two companies that I see around town, are Speer Air and Air Group.