A - 1 CONSTRUCTION
General Engineering Contractor license 690238 issued by the California Contractors State License Board. Status shown as of August 17, 2026.
This license is active. It is valid through October 31, 2026, 75 days from today, according to the most recent CSLB public file.
| License holder | A - 1 CONSTRUCTION |
|---|---|
| Business name | A - 1 CONSTRUCTION |
| License type | General Engineering Contractor |
| License number | 690238 |
| Status today | Active |
| Expiration date | October 31, 2026 |
| City | San Francisco |
| County of record | San Francisco |
| Phone on file | (415) 810 4231 |
| Classifications | A |
| 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 136 licensed general engineering contractors on record in San Francisco County. Compare them all →