Best Licensed General Contractors in Graton, CA
10 general contractors registered in Graton hold current CSLB licenses, verified against official records as of August 22, 2026. The 8 below are the top-ranked, ordered by workers' compensation cover and years licensed.
- 2,077 active B general building contractor licenses in Sonoma County; 10 registered in Graton
- 3 of Graton's 10 licenses (30.0%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Graton: 21 years
- Longest Graton licensure: since 1992
- 175 county licenses reach their expiration date within 90 days
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- Verified
- August 22, 2026
- Licensed since
- 2003
- Phone
- (707) 827-3450
- Verified
- August 22, 2026
- Licensed since
- 2022
- Phone
- (707) 293-8370
- Verified
- August 22, 2026
- Licensed since
- 2022
- Phone
- (707) 479-1105
- Verified
- August 22, 2026
- Licensed since
- 1992
- Phone
- (707) 486-1902
- Verified
- August 22, 2026
- Licensed since
- 1993
- Phone
- (707) 757-3923
- Verified
- August 22, 2026
- Licensed since
- 1993
- Phone
- (707) 321-5279
- Verified
- August 22, 2026
- Licensed since
- 2003
- Phone
- (707) 824-0640
- Verified
- August 22, 2026
- Licensed since
- 2004
- Phone
- (707) 486-6495
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| A B L Construction | #830452 | On file | 2003 |
| Niko Flooring Company | #1090367 | On file | 2022 |
| Mahre Contracting Inc. | #1099975 | On file | 2022 |
| Chris Gouvea Construction | #657010 | Exempt or none on file | 1992 |
| Mischa Steinbruck | #662889 | Exempt or none on file | 1993 |
| David Chiddix Construction | #668476 | Exempt or none on file | 1993 |
Sonoma County general building licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 2,077 active B general building contractor licenses in Sonoma County, 10 of them registered in Graton. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Graton license has been held 21 years, and the longest-standing one dates to 1992. 3 of Graton's 10 licenses (30.0%) carry current workers' compensation cover in CSLB's file. That is employee injury cover, not liability insurance, and a blank usually means an owner-operator with no employees - lawful, and not a mark against anyone. The contractor bond is not a signal here: 2,075 of the county's 2,077 licenses carry the same $25,000 bond California sets by statute. 175 county licenses reach their expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.
General Contractors in Graton: common questions
How many licensed general contractors are there in Graton?
10 active B general building contractor licenses are registered in Graton, out of 2,077 across Sonoma County. 10 Graton-registered companies passed our license verification, and the 8 on this page are the top-ranked of those. Only licenses CSLB shows as CLEAR and unexpired are listed.
Does California license general contractors?
Yes. California licenses contractors by classification, and B is the CSLB classification that authorises this work. 10 active B general building contractor licenses are registered in Graton and 2,077 across Sonoma County, the longest-standing issued in 1992. Only CLEAR, unexpired licenses appear here.
How do I check a general contractor's license in California?
Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which 3 of Graton's 10 currently carry. 175 Sonoma County licenses expire within 90 days.