water stain at sill plate, rim joist, and floor joist
I live in north california bay area. The house is 50 years old. Stucco siding. Recently I found there are water stains at sill plate, rim joist, and floor joist:
There are hairline cracks at the stucco. I am not sure if that's the root cause of the water leakage:
My questions are: 1) area they serious? 2) If I need to fix them (the sill plate, joist, and the stucco), what type of contractor should I hire?