Earthquake Retrofitting Cost Calculator
Estimate the cost of seismically retrofitting your home based on home size, foundation type, and your location.
Last updated: March 25, 2026
Earthquake Retrofitting Cost Calculator
Estimate the cost of seismically retrofitting your home based on home size, foundation type, and your location.
Estimated Total
$7,250
Itemized Breakdown
This calculator provides estimates based on national averages adjusted for your region. Actual costs may vary significantly based on specific project conditions, contractor availability, material prices, and local market factors. Always get at least 3 quotes from licensed, insured contractors before starting your project.
Want the full picture?
Read our complete Earthquake Retrofitting / Seismic Retrofit cost guide with material comparisons, contractor tips, savings strategies, and regional pricing data.
Quick Cost Reference
Cost by Tier
Basic cripple wall bolting on a small home under 1,200 sq ft, no engineer required in many jurisdictions, standard hardware.
Cripple wall bolting plus structural sheathing on a 1,500-2,000 sq ft home, engineer plan review, standard anchor bolts and hardware.
Full seismic retrofit for a large or complex home including cripple wall bracing, foundation anchor bolts, post-and-pier work, custom engineering plans.