LogoTremor
Book Assessment
GuaranteePlan #00247
Structural · Seismic
Los Angeles, CA

Your home has
fault lines.

We find them before the ground does.

Room-by-room seismic vulnerability audit + an actionable survival plan. Delivered before the next fault line shifts.

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Soft-Story Retrofit·Cripple Wall Reinforcement·Gas Shutoff Protocol·Water Heater Strapping·Go-Bag Inventory·Family Rally Point·Unreinforced Masonry Audit·Foundation Assessment·Drop-Drill Protocol·Chimney Vulnerability·Soft-Story Retrofit·Cripple Wall Reinforcement·Gas Shutoff Protocol·Water Heater Strapping·Go-Bag Inventory·Family Rally Point·Unreinforced Masonry Audit·Foundation Assessment·Drop-Drill Protocol·Chimney Vulnerability·

Vulnerability Assessment

The gap between
unprepared and action-planned.

Each row below represents a real failure point found in Los Angeles homes and offices. Rows escalate in severity as you scroll.

Inconvenience
Property Risk
Structural Failure
Life Safety
Failure PointUnprepared
Tremor-Planned

Tap any row for source context

Soft-Story Retrofit·Cripple Wall Reinforcement·Gas Shutoff Protocol·Water Heater Strapping·Go-Bag Inventory·Family Rally Point·Unreinforced Masonry Audit·Foundation Assessment·Drop-Drill Protocol·Chimney Vulnerability·Soft-Story Retrofit·Cripple Wall Reinforcement·Gas Shutoff Protocol·Water Heater Strapping·Go-Bag Inventory·Family Rally Point·Unreinforced Masonry Audit·Foundation Assessment·Drop-Drill Protocol·Chimney Vulnerability·

Case Study · Plan #00189 · Mar 2025

Soft-story duplex,
Silver Lake, Los Angeles.

Built 1962. Raised wood-frame foundation. Garage below two residential units. Owner had no documentation, no retrofit plan, no awareness of LADBS ordinance requirement.

Before Assessment

February 2025

87

Vulnerability Score

Foundation Anchoring82%
Cripple Wall Bracing91%
Gas & Utility Risk74%
Egress Obstruction65%
Non-Structural Hazards58%
No LADBS retrofit permit on file
Cripple walls unbraced — 1×6 diagonal only
Sill plate anchor bolts missing on 3 of 4 corners
Gas meter inside garage, no accessible shutoff wrench
Chimney: unreinforced brick, no parapet cap

After Tremor Plan

April 2025 · 6 weeks post-audit

11

Vulnerability Score

Foundation Anchoring12%
Cripple Wall Bracing8%
Gas & Utility Risk15%
Egress Obstruction5%
Non-Structural Hazards18%
LADBS permit filed — retrofit in progress
Plywood sheathing installed on all cripple walls
Foundation anchor bolts installed at 6-ft intervals
Gas shutoff wrench mounted, household trained
Chimney parapet removed, cap installed
87
Before
11
After

From unaware to documented, permitted, and retrofit-planned in under 6 weeks.

What You Receive

A Seismic Assessment
is not a pamphlet.

Every Tremor assessment produces six concrete deliverables. Not recommendations. Actionable documents you hand to a contractor, post on a wall, or file with your insurer.

01Included

Room-by-Room Vulnerability Report

Every room assessed. Every hazard documented. Prioritized by life-safety risk, not aesthetic preference.

40–60 page structural report with photographic documentation

02

Vulnerability Score

A single number (0–100) summarizing your property's seismic exposure. Recalculated after each remediation milestone.

Benchmarked against USGS ShakeMap for your zip code

03

Prioritized Action Plan

Ranked list of interventions by urgency and cost. Not a generic checklist — specific to your structure, your soil zone, your fault proximity.

Includes contractor referrals and permit requirements

04

Family / Staff Survival Protocol

Drop-drill procedures, rally points, gas shutoff training, and go-bag inventory — written for your specific building layout.

Includes printed laminated card for each unit or room

05

Compliance Documentation

LADBS ordinance status, retrofit permit guidance, and liability documentation for property managers and school administrators.

Accepted by insurance carriers for premium review

06Included

12-Month Follow-Up Audit

We return to verify remediation progress and update your vulnerability score. Your plan stays current as your building changes.

Included in all Comprehensive and Commercial plans

Homeowners

1,400+
Homes Assessed

Soft-story foundations, raised wood-frame, hillside properties. We've assessed 1,400+ LA residences since 2019.

Property Managers

340+
Buildings Covered

Unreinforced masonry buildings, multi-unit soft-story. Liability documentation included for every plan.

Schools & Institutions

47
Campuses Planned

Drop-drill protocol updates, staff training, egress mapping. OSHA-compliant documentation standard.

The five seconds of silence are almost over.

Get your plan
before the ground does.

A Tremor Seismic Assessment takes 2–4 hours on-site. You receive your full report, vulnerability score, and action plan within 5 business days. No insurance required. No contractor upsell.

Residential from $395 · Commercial from $895 · Schools from $1,295

Not ready to book?

Download the 5-Minute Home Audit Checklist

A printable walkthrough of the 12 most common seismic vulnerabilities in LA homes. Takes 5 minutes. No assessment required.

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CA Licensed Structural Engineers
USGS Fault Data Integrated
LADBS Ordinance Compliant
Insurance Carrier Accepted