One Stop Retrofit
Seismic retrofit contractor working in Los Angeles. Licensed since 2017.
- License active
- Workers' comp on file
12 retrofit jobs on Los Angeles permits, 2023 to 2026. 21st most retrofit permits of 80 contractors in Los Angeles.
What the public records show
From the state's license records and the city's permits, one question at a time.
| Question | Records show | Mark |
|---|---|---|
| Licensed? | License 1026051, active in the state's records on Sep 23, 2026General buildingNo complaints or citations on the board's public record. | Checks out |
| Workers' comp? | Workers' comp policy on file with the stateThis covers their crew if someone is hurt. It is not insurance for your home. | On file |
| In business? | Licensed since 2017 | |
| Jobs on record | 12 retrofit jobs on Los Angeles permits, 2023 to 2026Every permit we have for them is retrofit.21st most retrofit permits of 80 licensed contractors in Los Angeles. That counts jobs, not quality.Our Los Angeles permit records cover June 2023 to September 2026. |
Records: the state license board and City of Los Angeles permits.
State license board record
Last checked Oct 4, 2026. This may have changed. Check it on CSLB.
No complaints or citations on the board's public record.
Source: California Contractors State License Board, checked Oct 4, 2026. Look up license 1026051 on CSLB
Cost and timing
All retrofit jobs in Los Angeles: $20,000 to $60,000
Half of 1,205 city permits list an amount in this range. Permit amounts are often lower than what you pay.
How to read this range
Contractors write a job value on the permit form, and the city uses it to set the permit fee. It is not the contract price, and it is often lower than what you pay. A quarter of the permits list less than this range, and a quarter list more. Use it to see if a quote is in the normal range.
Permit value (not a price)
Their typical permit lists $110,000 (half list more, half less)
That is the figure written on the permit form, which can be far from what you pay. What retrofit jobs cost in Los Angeles.
Get 2 or 3 written quotes.
Permit timeline
Across Los Angeles, a retrofit permit stays open about about 6 months, from permit to final inspection
This is not how long the crew works at your home: most of it is waiting for the inspection. Ask them how many days the work takes. Waiting for the permit adds about about 4 months. How long retrofit jobs take.
Track record
5 jobs in the last 12 months, up from 4 the year before
Where they work most
- 900496 jobs
- 900253 jobs
- 900312 jobs
- 914031 job
Latest jobs
Permit values are what the contractor wrote on the permit form, not what the owner paid.
| Date | Work | ZIP | On the permit form |
|---|---|---|---|
| Apr 15, 2026 | Seismic retrofitSupplemental Soft-Story seismic retrofit permit 25016-10000-18358 : Change from Hardy Panel to… | 90049 | $5,000 |
| Nov 14, 2025 | Seismic retrofitSoft-Story seismic retrofit per LABC Chapter 93: Install (4) New Special Steel Cantilever Columns | 90049 | $160,000 |
| Nov 14, 2025 | Seismic retrofitSoft-Story seismic retrofit per LABC Chapter 93:Install 2 new special steel cantilever columns, … | 90049 | $110,000 |
| Nov 6, 2025 | Seismic retrofitSupplemental to Soft-Story seismic retrofit permit 25016-10000-01409: Field changes due to existing… | 90049 | not stated |
| Nov 6, 2025 | Seismic retrofitSoft-Story seismic retrofit per LABC Chapter 93: Field Correction based on preinspection meeting | 90025 | $12,000 |
| Jun 6, 2025 | Seismic retrofitSoft-Story seismic retrofit per LABC Chapter 93: (1) 2 BAY SPECIAL STEEL MOMENT FRAME & (1) NEW… | 90049 | $100,000 |
| Apr 7, 2025 | Seismic retrofitSoft-Story seismic retrofit per LABC Chapter 93: (2) SINGLE BAY SPECIAL STEEL MOMENT FRAMES & (2)… | 90025 | $125,000 |
| Mar 28, 2025 | Seismic retrofitSoft-Story seismic retrofit per LABC Chapter 93: REMOVE AND REPLACE (E) COLUMN WITH (2)-NEW SPECIAL… | 90049 | $70,000 |
| Mar 28, 2025 | Seismic retrofitSoft-Story seismic retrofit per LABC Chapter 93: (1) new special steel cantilever column , (1) new… | 90025 | $100,000 |
| Jun 13, 2024 | Seismic retrofit***VOID-WTHDRAWN**Eplan: 1 of 2 : Soft-Story seismic retrofit per LABC Chapter 93: (3035 Sierra) - … | 90031 | $150,000 |
| Jun 13, 2024 | Seismic retrofit**VOID-WITHDRAWN** Eplan: 2 of 2 : Soft-Story seismic retrofit per LABC Chapter 93: (3045 Sierra) -… | 90031 | $150,000 |
| Aug 3, 2023 | Seismic retrofitSoft-Story seismic retrofit per LABC Chapter 93: Install Hardy Frame Shear Wall panels | 91403 | $310,931 |
What to ask before you hire
About One Stop Retrofit
- Ask what the warranty covers and for how long, in writing.
Worth asking any seismic retrofit contractor
- Can you show me proof of liability insurance and your bond?
- Is the plan engineered, or does it follow the city's standard plan?
- How many anchor bolts and wall panels will you install, and where?
- Who pulls the permit, and who meets the inspector?
Get a quote from One Stop Retrofit
Five quick questions. We pass your request to One Stop Retrofit.
Request for One Stop Retrofit
- Where
- Job
- Start
- Budget
- Goes to
You decide who to hire. Your details go only to the contractors you pick. How we use your details
Sent. We have your request.
We pass it to One Stop Retrofit. Replies usually come within a few days.
Your job room keeps the request, your photos and every reply in one place, with an assistant that checks prices against city permits. Keep its link: it is the key to your job.
Open your job roomMore seismic retrofit contractors near 90049 and 90025
- Optimum Seismic Inc
- Shaolian Sol K and Assoc Inc
- One Structural Inc
- Biayna Engineering & Construction
- Global Builders Inc
- Sunshine Foundation Repairs
See all 80 seismic retrofit contractors in Los Angeles, ranked by jobs
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