MARTIN TYNAN & SON CONST
General Building Contractor license 522271 issued by the California Contractors State License Board. Status shown as of August 17, 2026.
This license is active. It is valid through April 30, 2027, 256 days from today, according to the most recent CSLB public file.
| License holder | MARTIN TYNAN & SON CONST |
|---|---|
| Business name | MARTIN TYNAN & SON CONST |
| License type | General Building Contractor |
| License number | 522271 |
| Status today | Active |
| Expiration date | April 30, 2027 |
| City | Burlingame |
| County of record | San Mateo |
| Phone on file | (650) 388 8537 |
| Classifications | B, C10 |
| Board status | CLEAR |
| Contractor bond | $25,000 |
| Issuing authority | California Contractors State License Board |
| First seen in public file | August 17, 2026 |
| Last confirmed | August 17, 2026 |
How to confirm this yourself
This page reproduces the CSLB public license file, which the agency republishes daily. Before you hire anyone, confirm the record at the source and ask the contractor for proof of insurance separately, since licensing and insurance are not the same thing and the state file does not cover insurance.
Verify at CSLB → File a complaint
There are 2,474 licensed general building contractors on record in San Mateo County. Compare them all →