sesmic retrofit sanfrancisco

i m havinga problem in my roof due to earthquakes in sanfrancisco. i found some weak connections in my room to wall connections plz anyone give me the information about any contractor who can strengthen my walls plz tell me

Thanks

im living in the san francisco and i got the same problem wen the earthquake came over and i was frightened tht wht to do and then my friend from neighbour then told me about a contractor cz i was so worried tht where to go for the remodeling but he told me about them seismic retrofit san Francisco and when i got help from them i was surprised cz m friend was rite they were perfect and they left no mistake about there work to comment on it. so i suggest you with my personal experince thtyou get help with them n u will be satisfied like me.