In Channel Islands Harbor you can check out Anchors Way (Weigh?). They have a location in Ventura Harbor also, but just took over the old Channel Islands Boatyard in Channel Islands Harbor.
I had some work done at Bellport Anacapa Boatyard in CIH. They did a creditable job, but were somewhat inattentive to my requests to be updated on costs at various stages as the job progressed. Consequently there were some negotiations prior to paying the final invoice...
One thing they did do with my rudder was repair a crack and install a shim; the rudder no longer has the looseness it seemed to have before.
Whoever you use, make them give you a written estimate of the repair cost. It might change after they pull the boat and see what they are actually up against, but at least you will have an idea of the cost up front. Everything is open to negotiation these days...