Buildda Seismic Retrofitting Process
Seismic retrofitting in LA runs $5,000-$70,000 over 3-7 days for most homes, depending on foundation type and retrofit scope. California Earthquake Authority's Brace + Bolt program offers up to $3,000 in rebates for qualifying retrofits on homes built before 1980 with raised foundations and cripple walls.
Step-by-Step Timeline
Seismic Vulnerability Assessment
Our structural specialists inspect your home's foundation, cripple walls, and connection points to identify earthquake vulnerabilities. We assess your home against current California seismic standards.
Outcome:
A detailed report of your home's seismic weaknesses and recommended retrofit measures.
Engineering & Retrofit Plan
Based on the assessment, we develop an engineered retrofit plan specific to your home's construction. You'll receive a comprehensive quote detailing all work, materials, and compliance with California's Earthquake Brace + Bolt standards.
Outcome:
A professionally engineered retrofit plan with clear scope and transparent pricing.
Permits & EBB Enrollment
Buildda handles all permit applications and, if eligible, enrolls your project in California's Earthquake Brace + Bolt (EBB) program for potential rebates up to $3,000. We ensure compliance with local building codes.
Outcome:
All permits secured and available rebate programs identified for your retrofit.
Foundation Bolting
Our crews install new foundation anchor bolts, securing your home's mudsill to the concrete foundation. We use epoxy-set or expansion bolts spaced according to engineering specifications.
Outcome:
A securely bolted connection between your home and its foundation.
Cripple Wall Bracing
We reinforce cripple walls (short stud walls in crawl spaces) with structural plywood sheathing. This prevents the most common earthquake failure mode in older California homes.
Outcome:
Strengthened cripple walls that resist lateral earthquake forces.
Hardware & Connection Upgrades
We install framing anchors, hold-downs, and metal connectors at critical points. Water heater strapping and gas line flexible connectors are added for additional safety.
Outcome:
Complete structural connections and utility safety measures throughout your home.
City Inspection & Certification
After completing the retrofit, we schedule the required city inspection. Upon approval, your home receives official certification of seismic retrofit compliance.
Outcome:
Official certification documenting your home meets current seismic safety standards.
Documentation & Insurance Benefits
Buildda provides complete documentation of your retrofit for insurance purposes. Many insurers offer earthquake insurance discounts for retrofitted homes. We assist with any required paperwork.
Outcome:
full documentation for insurance benefits for your family.
Ready to Transform Your Seismic Retrofitting?
Let's start with a conversation about your vision and how we can bring it to life.
Ready to Get Started?
Contact us for a no-obligation consultation about your project.
Content reviewed by Shiran Levy, Licensed General Contractor (CA #1131088)
Last updated: November 2026