Contractors in San Jose

[Veneka Shumba]

Hello: I am under contract for a property in San Jose priced ~1.5 mil. I want to flip the house by changing it from a sfh to a duplex. 

Does anyone know of any good, affordable contractors in the area I can call to get bids?  I only have one from my realtor who I feel is overpricing the project.

Thanks in advance.