Best Licensed Concrete Contractors in Sebastopol, CA
3 concrete companies registered in Sebastopol hold current CSLB licenses, verified against official records as of August 17, 2026. All 3 are listed below, ordered by years licensed.
- 110 active C-8 concrete licenses in Sonoma County; 3 registered in Sebastopol
- California requires workers' compensation cover for C-8 licensees: 3 of Sebastopol's 3 licenses (100.0%) carry a current policy with CSLB
- Median time licensed in Sebastopol: 17 years
- Longest Sebastopol licensure: since 1994
- 8 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1994
- Phone
- (707) 829-0509
- Verified
- August 17, 2026
- Licensed since
- 2008
- Phone
- (707) 672-5708
- Verified
- August 17, 2026
- Licensed since
- 2026
- Phone
- (707) 478-2408
Compare the top 3 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Tim Grogan Builders Inc. | #692820 | On file | 1994 |
| Lotus Construction & Design Inc. DBA Ironvine Construction | #923101 | On file | 2008 |
| Redwood Concrete Construction Inc. | #1148531 | On file | 2026 |
Sonoma County concrete licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 110 active C-8 concrete licenses in Sonoma County, 3 of them registered in Sebastopol. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Sebastopol license has been held 17 years, and the longest-standing one dates to 1994. California law requires workers' compensation cover for C-8 licensees, so it is a legal baseline rather than a way to tell two contractors apart: 3 of Sebastopol's 3 licenses (100.0%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 110 of the county's 110 licenses carry the same $25,000 bond California sets by statute. 8 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.
Concrete Contractors in Sebastopol: common questions
How many licensed concrete contractors are there in Sebastopol?
3 active C-8 concrete licenses are registered in Sebastopol, out of 110 across Sonoma County. 3 Sebastopol-registered companies passed our license verification, and all 3 are listed on this page. Only licenses CSLB shows as CLEAR and unexpired are listed.
Does California license concrete contractors?
Yes. California licenses contractors by classification, and C-8 is the CSLB classification that authorises this work. 3 active C-8 concrete licenses are registered in Sebastopol and 110 across Sonoma County, the longest-standing issued in 1994. Only CLEAR, unexpired licenses appear here.
How do I check a concrete 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 California requires of C-8 licensees and 3 of Sebastopol's 3 currently carry. 8 Sonoma County licenses expire within 90 days.