Simply put, seismic retrofitting of your foundation consists of securing the wood framed house down to the foundation. The purpose of seismic retrofitting is to reduce the chances of the house sliding off of the foundation in the event of an earthquake.
Cripple walls are framed wood walls between the foundation and your floor. Common on older homes and on hillside homes. Cripple walls can be vulnerable to earthquakes and so typically these are reinforced with structural plywood sheathing.
Yes, building permits are required for seismic retrofitting - house bolting. Some municipalities and types of structures (i.e. hillside or tall cripple walls) will also require a set of engineering plans. Foundation Repair LA Inc. will provide the required plans, engineering and building permit for the work.
As each house is different, a tailored proposal would be provided for your home. As a broad average, most seismic retrofits cost between $5,000.00 and $10,000.00.
Some homeowners are able save money on their earthquake policy after retrofitting their foundation. Call your insurance provider to find out more on this.
Yes, you can. You will not be required to move out of your home during the seismic retrofitting process.