under the cslb law theres over 60 diffrent trades, each one of the trade is basically a profession and if someone hold one of the trade licsnce so it says that he had over 4 years field expirence in the field and he passed the cslb exem in the trade and also that he bonded and insuerd.
now, in a restoration project, there are many trades involved- the first trade is demolition (is it is a trade) after that we have insulation - trade also, next two trades come to picture are electrical and plumbing- fix pipes, relocate or replace outlets/wires because of water damage, then kill the mold - certification, and when we all clean and ready we use another two trades to finish the job- drywall contractor and paint and decor contractor.
a lot of trades for a leak right? but thats the right and only way to do it
as a general contractor you allowed to do all these trades. and restore any damge project.
maybe you will find someone to do the job, but if he is not a general contractor he isn't insured and you neither !