Best Licensed General Contractors in Sonoma, CA
145 general contractors registered in Sonoma 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; 148 registered in Sonoma
- 61 of Sonoma's 148 licenses (41.2%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Sonoma: 17 years
- Longest Sonoma licensure: since 1950
- 175 county licenses reach their expiration date within 90 days
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- Verified
- August 22, 2026
- Licensed since
- 1957
- Phone
- (707) 938-8481
- Verified
- August 22, 2026
- Licensed since
- 1976
- Phone
- (707) 938-1789
- Verified
- August 22, 2026
- Licensed since
- 1980
- Phone
- (707) 996-9174
- Verified
- August 22, 2026
- Licensed since
- 1981
- Phone
- (707) 537-3810
- Verified
- August 22, 2026
- Licensed since
- 1984
- Phone
- (707) 935-1577
- Verified
- August 22, 2026
- Licensed since
- 1985
- Phone
- (707) 272-0922
- Verified
- August 22, 2026
- Licensed since
- 1989
- Phone
- (415) 847-6233
- Verified
- August 22, 2026
- Licensed since
- 1990
- Phone
- (901) 569-1577
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Peterson Mechanical Inc. | #171486 | On file | 1957 |
| R J Lely Construction | #325380 | On file | 1976 |
| Jon Ray & Sons Construction | #397968 | On file | 1980 |
| Ledson Development LLC | #404946 | Exempt or none on file | 1981 |
| Abide International Inc. | #462833 | On file | 1984 |
| Bazzani Building Company | #477282 | On file | 1985 |
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, 148 of them registered in Sonoma. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Sonoma license has been held 17 years, and the longest-standing one dates to 1950. 61 of Sonoma's 148 licenses (41.2%) 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 Sonoma: common questions
How many licensed general contractors are there in Sonoma?
148 active B general building contractor licenses are registered in Sonoma, out of 2,077 across Sonoma County. 145 Sonoma-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. 148 active B general building contractor licenses are registered in Sonoma and 2,077 across Sonoma County, the longest-standing issued in 1950. 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 61 of Sonoma's 148 currently carry. 175 Sonoma County licenses expire within 90 days.
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