Sincere Construction Company Inc
Seismic retrofit contractor based in Brisbane. Licensed since 1989.
- License active
- Workers' comp on file
15 jobs on San Francisco permits, 2021 to 2026: 7 seismic retrofits, 5 remodels, 2 ADUs, 1 panel upgrade. 11th most retrofit permits of 42 contractors in San Francisco.
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 557739, 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 1989 | |
| Jobs on record | 15 jobs on San Francisco permits, 2021 to 2026: 7 seismic retrofits, 5 remodels, 2 ADUs, 1 panel upgradeThey are based in Brisbane. Work outside San Francisco is not in these records.11th most retrofit permits of 42 licensed contractors in San Francisco. That counts jobs, not quality.Our San Francisco permit records cover September 2021 to September 2026. |
Records: the state license board and City of San Francisco 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 557739 on CSLB
Cost and timing
All retrofit jobs in San Francisco: $25,000 to $100,000
Half of 704 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 $80,000 (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 San Francisco.
Get 2 or 3 written quotes.
Permit timeline
Across San Francisco, a retrofit permit stays open about about 8 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 16 days. How long retrofit jobs take.
Track record
Jobs per quarter
Where they work most
- 941103 jobs
- 941153 jobs
- 941322 jobs
- 941142 jobs
- 941091 job
Jobs by kind of work
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 |
|---|---|---|---|
| Jul 28, 2026 | Seismic retrofitResidential: seismic retrofit of soft story comply with sfebc 4d mandatory seismic retrofit per… | 94109 | $90,000 |
| Jun 12, 2025 | Panel upgradeNew adu studio at garage level laundry, new subpanel | 94132 | not stated |
| Feb 18, 2025 | ADU2ft extension of the structure at rear | 94132 | $60,000 |
| Oct 17, 2023 | Seismic retrofitSeismic retrofit (e) basement per mandatory soft story program | 94117 | $65,000 |
| Oct 10, 2023 | RemodelIn-kind remodeling of 1 kitchen(s) in 2nd fl and in-kind remodeling of 3 bathroom(s) in basement,… | 94110 | $85,000 |
| Sep 23, 2023 | RemodelIn-kind remodeling of 1 kitchen(s) in 1st fl and in-kind remodeling of 1 bathroom(s) in 1st fl with… | 94112 | $50,000 |
| Aug 9, 2023 | RemodelTo comply w/nov# 202304966 repair basement retaining wall & repair exterior wall on very top of bldg | 94108 | $40,000 |
| Feb 23, 2023 | Seismic retrofitSoft story retrofit per sfbc chapter 34b 2012 iebc appendix a-4. residential addresses… | 94133 | $75,000 |
| Jun 21, 2022 | Seismic retrofitAdd (2) new d.u.'s per ordinance #162-16, remove portion of a garage; refer to p/a #201709137951… | 94115 | $128,000 |
| Jun 21, 2022 | ADUAdd (2) new d.u.'s per ordinance #162-16, remove portion of a garage; refer to p/a #201709137951… | 94115 | $128,000 |
| Jun 16, 2022 | Seismic retrofitSoft story upgrade per chapter 4d | 94114 | $77,000 |
| Apr 22, 2022 | Seismic retrofitSeismic retrofit of soft story comply with sfebc 4d mandatory seismic retrofit per 2019 cebc… | 94110 | $100,000 |
| Mar 8, 2022 | RemodelRemodel 1 (e) kitchen and one (e) bathroom | 94114 | $38,000 |
| Mar 2, 2022 | RemodelRemodel one existing one kitchen and one existing bathroom repaint entire unit | 94110 | $38,000 |
| Nov 10, 2021 | Seismic retrofitSoft story per sfebc 2019 cebc chapter 4d appendix a-4 | 94115 | $80,000 |
What to ask before you hire
About Sincere Construction Company Inc
- 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 Sincere Construction Company Inc
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Open your job roomMore seismic retrofit contractors near 94110 and 94115
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- West Coast Premier Construction Inc
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See all 42 seismic retrofit contractors in San Francisco, ranked by jobs
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