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California contractor license
City Building Inc
City Building Inc of San Mateo holds California license 324335 (B General Building). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Nov 30, 2027.
Licensed 50 years, longer than 94% of 156 active San Mateo general contractors.
Active
City Building Inc, San Mateo
- Board action on file.
- License
- 324335
- Class
- B General Building
- Expires
- Nov 30, 2027
- Bond
- $25,000
- Workers' comp
- Insured to Jan 1, 2027
CSLB file dated Oct 30, 2026
From the CSLB file dated Oct 30, 2026. Not a consumer report; check the board before you hire.
Has the board taken action on this license?
- Nov 20, 1984 — Disciplinary bond (conditional) — Case 1982000229 — Ended Nov 24, 1986
From the CSLB file dated Oct 30, 2026. Confirm with the board. CSLB license check
What bond, insurance and workers' comp are on file?
- Bond
- $25,000Western Surety Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredState Compensation Insurance Fund, from Jan 1, 2019, to Jan 1, 2027
Who is on this license?
- Responsible managing officer
- Vincent J. BaldwinSince Apr 2, 2021
- CEO and president
- Matthew W. BaldwinSince Nov 17, 2025
What work does this license cover?
Issued Aug 27, 1976.
Which other San Mateo businesses hold B General Building?
- Culligan Management Company IncLicensed since 1968
- Carstens Construction CoLicensed since 1975
- Del Rey Construction Co IncLicensed since 1981
- La Joie Construction IncLicensed since 1983
- Peace Of Mind Structural IncLicensed since 1984
General Contractors in San MateoCalifornia general contractors
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 30, 2026)
- Contractors State License Board (CSLB)