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California contractor license
Dunn Charlie & Sons Inc
Dunn Charlie & Sons Inc of Livermore holds California license 770563 (C29 Masonry, D34). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Oct 31, 2027.
Active
Dunn Charlie & Sons Inc, Livermore
- License
- 770563
- Class
- C29 Masonry; D34
- Expires
- Oct 31, 2027
- Bond
- $25,000
- Workers' comp
- Exempt
CSLB file dated Nov 1, 2026
From the CSLB file dated Nov 1, 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 Nov 1, 2026. Confirm with the board: CSLB license check
What bond, insurance and workers' comp are on file?
- Bond
- $25,000American Contractors Indemnity Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- Exemptfrom Oct 22, 2025
Who is on this license?
- Officer
- Christine M. DunnSince Mar 7, 2005
- Responsible managing officer, CEO and president
- Charles W. DunnSince Oct 22, 1999
What work does this license cover?
Issued Oct 22, 1999.
- C29 Masonry
- D34
The workers' comp exemption means the holder told the CSLB it has no employees. If a crew works on your job, ask for a workers' comp certificate.
Which other Livermore businesses hold C29 Masonry?
- Whips Chimney Service IncLicensed since 1988
- Golden State StuccoLicensed since 1995
- DRW Masonry LLCLicensed since 2002
- Padilla Masonry IncLicensed since 2005
- Gonzalez Pool Masonry IncLicensed since 2018
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, Nov 1, 2026)
- Contractors State License Board (CSLB)