Seismic retrofitting is the process of modifying an existing building to make it more resistant to seismic activity, ground motion, or soil failure due to earthquakes. For Los Angeles homeowners, this typically involves bolting the home to its foundation and bracing the walls beneath the first floor with structural plywood. This critical upgrade helps prevent your home from sliding or collapsing off its foundation during a tremor, ensuring the safety of your family and protecting your property investment during California’s inevitable seismic events.