O'riordan Construction Inc.
O'riordan Construction Inc. is a San Mateo, California contractor holding CSLB license #670221, verified against state records, licensed since 1993.
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License verification
License-Verified- CLEARCSLB #670221(ASB|B|C2|D65|HAZ)
- Original license date
- 1993-04-27
- Expires
- 2027-07-31
- Workers' comp cover through
- 2026-08-25 (NORGUARD INSURANCE COMPANY)
On CSLB's register since 1993-04-27, 33 years before our 2026-09-04 check. CSLB classifications on this record: ASB, B (General Building Contractor), C-2 (Insulation and Acoustical), D-65 and HAZ. Term on file to 2027-07-31. Bond: $25,000, California's statutory amount, with WESTERN SURETY COMPANY.
Last verified 2026-09-04 · Verify at the state registry
Verification history
Our copy runs to two dated snapshots, 2026-08-21 to 2026-09-04. CLEAR at every one.
- 2026-09-04 · checked against the state file · status: CLEAR (changed since the previous check)
- 2026-08-21 · checked against the state file · status: CLEAR
Contact
- Phone
- (415) 308-8880
- Address
- 353 WEST POPLAR AVE, San Mateo, CA 94402
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Common questions
- Is O'riordan Construction Inc. licensed in California?
- O'riordan Construction Inc. holds CSLB license #670221, status CLEAR as of our 2026-09-04 verification. The full credential detail, including any others on record, is in the verification section of this page.
- What do the CSLB class codes B and C-2 mean on O'riordan Construction Inc.'s license?
- CSLB records them as B, General Building Contractor; C-2, Insulation and Acoustical. The codes come from the register itself, and our class-code glossary explains each one in the agency's own words.
- How long has O'riordan Construction Inc. held its CSLB credential?
- CSLB has carried the record since 1993-04-27. That is the original date the register publishes; it is not a claim about how long the company has traded, which no register we check publishes.
- When was O'riordan Construction Inc.'s record last checked?
- 2026-09-04. Registers with a download feed are re-checked within 9 days; the 4 we fetch by hand (ROC, DCA, SPCB, FDACS) within 45 days. Every listing shows the date its credential was last verified, and a credential that lapses stops being claimed at the next rebuild.
- How can I verify O'riordan Construction Inc. myself?
- Look up license #670221 in the official CSLB search - this page links it next to the credential. We publish the number precisely so you never have to take our word for it.