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California contractor license
Charles & Sons Builders Inc
Charles & Sons Builders Inc of San Anselmo holds California license 470789 (B General Building). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Feb 28, 2027.
Licensed 41 years, longer than 91% of 47 active San Anselmo general contractors.
Active
Charles & Sons Builders Inc, San Anselmo
- License
- 470789
- Class
- B General Building
- Expires
- Feb 28, 2027
- Bond
- $25,000
- Workers' comp
- Insured to May 10, 2027
CSLB file dated Oct 31, 2026
From the CSLB file dated Oct 31, 2026. Not a consumer report; check the board before you hire.
Has the board taken action on this license?
None in the CSLB file dated Oct 31, 2026. Confirm with the board: CSLB license check
What bond, insurance and workers' comp are on file?
- Bond
- $25,000Merchants Bonding Company (Mutual), from Sep 17, 2025, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredPie Insurance Company (The), from May 10, 2026, to May 10, 2027
Who is on this license?
- Officer
- Gary P. PlathSince Aug 8, 2019
- Officer
- Julian R. PlathSince Aug 8, 2019
- Responsible managing officer
- Stephen C. PlathSince Aug 15, 2017
What work does this license cover?
Issued Mar 19, 1985. Reissued Feb 3, 2011.
Which other San Anselmo businesses hold B General Building?
- Nichelini & Sons IncLicensed since 1977
- MC Gee Michael J Construction IncorporatedLicensed since 1984
- Brackett ConstructionLicensed since 1985
- Kline Phil General ContractorLicensed since 1988
- Rogne Ben Construction IncLicensed since 1988
What should you check before hiring?
What to ask before you hire
- Get the license number in writing. The name on the license should match the name on your contract and invoice.
- Check the class covers the job. A license for one trade doesn't cover another. California license classes
- Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
- Ask who will be on site. If a crew works on your property, ask for proof of workers' comp. An exemption on file means the contractor told the CSLB it has no employees.
- Put it in a written contract: license number, price, start date and payment schedule. Check the license again on the day you sign.
If the license is lapsed
- Don't sign or pay a deposit until the CSLB shows the license active again.
- Ask the contractor why. For a bond or insurance lapse, ask for proof that the new bond or policy was filed with the CSLB, then check again.
- If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
- Check another contractor. California license lookup
Sources
- CSLB License Master (cslb.ca.gov, Oct 31, 2026)
- Contractors State License Board (CSLB)