Jeff Casto Construction
Panel upgrade electrician working in Marin County. Licensed since 1994.
- License active
- No workers' comp: the business told the state it has no employees
7 jobs on Marin County permits, 2021 to 2026: 6 panel upgrades, 1 ADU. 51st most panel upgrade permits of 96 contractors in Marin County.
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 690569, active in the state's records on Sep 23, 2026General building, electricalNo disciplinary case on the state's file. | Checks out |
| Workers' comp? | No workers' comp: the business told the state it has no employeesThis covers their crew if someone is hurt. It is not insurance for your home. | Ask them |
| In business? | Licensed since 1994 | |
| Jobs on record | 7 jobs on Marin County permits, 2021 to 2026: 6 panel upgrades, 1 ADU51st most panel upgrade permits of 96 licensed contractors in Marin County. That counts jobs, not quality.Our Marin County permit records cover October 2021 to October 2026. |
Records: the state license board and City of Marin County permits.
Cost and timing
All panel upgrade jobs in Marin County: $3,000 to $6,600
Half of 2,255 city permits list an amount in this range. Permit amounts are often lower than what you pay.
- Panel upgrades in Marin County: $3,200 to $6,500 (2,133 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 $2,750 (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 Marin County.
Get 2 or 3 written quotes.
Track record
Jobs per quarter
Where they work most
- 949412 jobs
- 949042 jobs
- 949032 jobs
- 949701 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 |
|---|---|---|---|
| Feb 3, 2026 | Panel upgradeService Upgrade | 94941 | $5,500 |
| Sep 3, 2025 | Panel upgradeReplace existing 200 AMP Main Meter Panel with a new 200 Amp Main Meter panel | 94970 | $2,500 |
| Jun 8, 2025 | Panel upgradeReplace existing 100 AMP Main Meter electrical panel with a 200 AMP main meter panel | 94941 | $3,500 |
| Oct 19, 2022 | ADUNo details on the permit | 94904 | $3,000 |
| Oct 19, 2022 | Panel upgradeNo details on the permit | 94904 | $3,000 |
| Sep 21, 2022 | Panel upgradeReplace a 100 Amp Zinzco sub-panel in a closet with a new 100 Amp Sub-panel | 94903 | $1,500 |
| Nov 30, 2021 | Panel upgradeMain panel upgrade from 100 Amps to 200 Amps New Circuits / Outlets, Service Upgrade | 94903 | $2,500 |
What to ask before you hire
About Jeff Casto Construction
- Ask who will do the work. Anyone they pay to work on your home must be covered by workers' comp.
- 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 Jeff Casto Construction
Five quick questions. We pass your request to Jeff Casto Construction.
Request for Jeff Casto Construction
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We pass it to Jeff Casto Construction. 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 panel upgrade electricians near 94941 and 94904
- Divine Electric Inc
- Talley Electric Service
- Auto Charge Electric Inc
- R Electric
- Warner Electric Incorporated
- All Electric
See all 96 panel upgrade electricians in Marin County, ranked by jobs
Run this business? Claim this page to get requests by email and reply to homeowners here.