Welcome to San Francisco Retroftting

San Francisco Retroftting – A CalQuake Inc., company are earthquake readiness experts. Here you will find useful information on earthquake retrofitting for your property, such as home bolting, shear paneling and soft story conditions.


Servicing Northern California including San Francisco, Piedmont, Santa Cruz, Hillsborough, Marin County, San Jose.  We have the experience needed to help protect and mitigate earthquake damage to your property.  House (anchor) bolting using (UFP plates), framing anchors and securing post and pier connections are just a small part of what we do to retrofit your home.

Our decades of experience and customer service makes us a leader in the EQ retrofit industry.  We partnered with the Structural Engineers Association (SEA). The (SEA) had been commissioned by the City of Los Angeles to create standards for retrofitting. Since that time, CAL-QUAKE Construction, Inc. has retrofitted and/or done correctional foundation work on over 10,000 properties throughout California.