How much does a panel upgrade cost in Marin County (94903)?
That difference is the install, labor, and overhead a filing never shows — the part homeowners only see once the work is real.
Get your exact numberBuilt from 28 real paid invoices in the San Francisco Bay Area — what people actually paid, not what a filing declared.
The reference range above is a separate figure: 794 comparable filed projects in Marin County public records (Marin County Open Data), compiled 2026-07-27.
Excluded before the median is computed: placeholder and nominal-value filings, filings whose figure is a fee rather than a cost, commercial work types, non-residential properties, apartment-building and high-rise work, and low-confidence category matches.
Panel upgrade projects filed in Marin County (94903) typically run about $3,600, with most between $3,000 and $6,400, based on 794 filings (Marin County public records, Marin County Open Data).
These are comparable filed projects in Marin County (94903) — a typical reference range, not a quote. Your project can land anywhere in the spread depending on scope, materials, and access.
Where the money goes
What moves the price
Common questions
What's the typical range for a panel upgrade in Marin County (94903)?
Most panel upgrade projects in Marin County (94903) run $3,000 to $6,400, with a median around $3,600, based on 794 filings of comparable filed work (Marin County public records, Marin County Open Data).
How does Marin County (94903) compare to citywide panel upgrade costs?
the 94903 median ($3,600) runs about 8% below the Marin County citywide median ($3,900) for panel upgrade projects.
What is the panel upgrade figure for Marin County (94903) based on?
Built from 28 real paid invoices in the San Francisco Bay Area — what people actually paid, not what a filing declared. The reference range above is a separate figure: 794 comparable filed projects in Marin County public records (Marin County Open Data), compiled 2026-07-27. Excluded before the median is computed: placeholder and nominal-value filings, filings whose figure is a fee rather than a cost, commercial work types, non-residential properties, apartment-building and high-rise work, and low-confidence category matches.
How recent is this data?
These figures reflect comparable panel upgrade projects filed in Marin County public records (Marin County Open Data), compiled as of 2026-07-27. They refresh as new filings are published.
What affects the cost of a panel upgrade?
Scope, materials, finishes, the age and condition of the home, and site access. The spread above ($3,000–$6,400) reflects that range — your project can land anywhere in it.
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