Chen's Construction and Mechanical Inc
Panel upgrade electrician based in San Francisco. Licensed since 2002.
- License active
- Workers' comp on file
18 jobs on San Francisco permits, 2021 to 2024: 12 panel upgrades, 6 remodels. 291st most panel upgrade permits of 1,063 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 814802, active in the state's records on Sep 23, 2026General engineering, general building, electrical, fire protectionThe board's public record lists 1 item. See the record below. | 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 2002 | |
| Jobs on record | 18 jobs on San Francisco permits, 2021 to 2024: 12 panel upgrades, 6 remodels291st most panel upgrade permits of 1,063 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.
How to read this
The Contractors State License Board lists complaints it has sent for legal action, citations it has issued, and warning letters. A complaint or accusation is an allegation, not a finding. A citation is the board's finding that a rule was broken; the contractor can appeal it. Complaints closed in the contractor's favor are never listed. Most contractors have no items.
Citation, as of Oct 4, 2026Mar 18, 2021 · Citation 2 2020 1861
The board issued a citation on Mar 18, 2021.
Listed: conviction of a substantially related crime
Source: California Contractors State License Board, checked Oct 4, 2026. Look up license 814802 on CSLB
Cost and timing
All panel upgrade jobs in San Francisco: $2,000 to $10,000
Half of 11,145 city permits list an amount in this range. Permit amounts are often lower than what you pay.
- Panel upgrades in San Francisco: $2,000 to $10,000 (6,396 permits)
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 $3,000 (half list more, half less)
That is the figure written on the permit form, which can be far from what you pay. What panel upgrade jobs cost in San Francisco.
Get 2 or 3 written quotes.
Permit timeline
Across San Francisco, a panel upgrade permit stays open about 77 days, 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. The permit itself is usually issued the same day. How long panel upgrade jobs take.
Track record
Jobs per quarter
Where they work most
- 941213 jobs
- 941163 jobs
- 941272 jobs
- 941322 jobs
- 941222 jobs
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 |
|---|---|---|---|
| Nov 6, 2024 | Remodel1st fl: add family, office, entertainment,1 bedroom & 2 full baths | 94127 | $260,000 |
| Nov 6, 2024 | Panel upgradeElectrical upgrade | 94127 | not stated |
| Sep 13, 2024 | Panel upgradeMaintain 400 amp service | 94121 | not stated |
| Aug 28, 2024 | Panel upgrade200 amp service upgrade | 94121 | not stated |
| Jul 10, 2024 | RemodelRemodel 2 bathrooms | 94116 | $20,000 |
| Jun 17, 2024 | RemodelRemodel (e) kitchen & bathroom | 94132 | $38,000 |
| May 28, 2024 | Remodel1st floor: add 3 bedrooms, and family | 94121 | $110,000 |
| Feb 14, 2024 | Panel upgradeUnit # 3: remodel kitchen, new bath room, new outlet, new sub panel | 94115 | not stated |
| Jul 12, 2023 | Panel upgradeTo remove unauthorized electrical work; including a/c unit & sub panel | 94107 | not stated |
| May 10, 2023 | Panel upgrade200 amp service upgrade | 94122 | $3,000 |
| May 5, 2023 | RemodelComply with nov#2023-05332, 202287834, 202307631 exterior stucco repair two sides less than 50%,… | 94116 | $25,000 |
| Dec 8, 2022 | Panel upgradeNew kitchen, new subpanel, (20) lights, (15) outlets | 94116 | $3,000 |
| Dec 8, 2022 | Panel upgradeNew kitchen, new subpanel, (12) lights, (7) outlets | 94131 | $3,000 |
| Jul 27, 2022 | Panel upgradeUpgrade 400amp overhead server panel | 94102 | not stated |
| Jul 13, 2022 | Panel upgradeSafety check existing services panel | 94122 | not stated |
| Dec 29, 2021 | RemodelAdd 2nd kitchen at gr fl, legalize bath at gr fl, legalize 3 baths, 1 kitchen remodel at 2nd and… | 94132 | $40,888 |
| Oct 20, 2021 | Panel upgradeUnit #621: upgrade 1 sub panel | 94118 | $2,000 |
| Oct 20, 2021 | Panel upgradeUpgrade 2 sub-panels | 94118 | $4,000 |
What to ask before you hire
About Chen's Construction and Mechanical Inc
- Ask what the warranty covers and for how long, in writing.
Worth asking any panel upgrade electrician
- Can you show me proof of liability insurance and your bond?
- What size panel, and does the utility need to change the service to my house?
- Who arranges the power shutoff with the utility?
- Who pulls the permit, and who meets the inspector?
Get a quote from Chen's Construction and Mechanical Inc
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