MARK E GNAT GENERAL CONTRACTOR
General Building Contractor license 912258 issued by the California Contractors State License Board. Status shown as of August 19, 2026.
This license is active. It is valid through October 31, 2026, 73 days from today, according to the most recent CSLB public file.
| License holder | MARK E GNAT GENERAL CONTRACTOR |
|---|---|
| Business name | MARK E GNAT GENERAL CONTRACTOR |
| License type | General Building Contractor |
| License number | 912258 |
| Status today | Active |
| Expiration date | October 31, 2026 |
| City | Santa Rosa |
| County of record | Sonoma |
| Phone on file | (707) 536 7911 |
| Classifications | B |
| 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 18, 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 2,387 licensed general building contractors on record in Sonoma County. Compare them all →