Best Licensed General Contractors in Danville, CA
173 general contractors registered in Danville 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.
- 3,193 active B general building contractor licenses in Contra Costa County; 178 registered in Danville
- 76 of Danville's 178 licenses (42.7%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Danville: 17 years
- Longest Danville licensure: since 1966
- 284 county licenses reach their expiration date within 90 days
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- Verified
- August 22, 2026
- Licensed since
- 1977
- Phone
- (510) 658-0361
- Verified
- August 22, 2026
- Licensed since
- 1977
- Phone
- (510) 566-5467
- Verified
- August 22, 2026
- Licensed since
- 1978
- Phone
- (925) 820-0600
- Verified
- August 22, 2026
- Licensed since
- 1979
- Phone
- (925) 820-0185
- Verified
- August 22, 2026
- Licensed since
- 1980
- Phone
- (510) 719-7632
- Verified
- August 22, 2026
- Licensed since
- 1982
- Phone
- (925) 831-2555
- Verified
- August 22, 2026
- Licensed since
- 1982
- Phone
- (510) 504-5658
- Verified
- August 22, 2026
- Licensed since
- 1987
- Phone
- (510) 882-4199
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Beamans Inc. | #333377 | On file | 1977 |
| S E Bright Construction Company | #339219 | On file | 1977 |
| James E Roberts-Obayashi Corporation | #358519 | On file | 1978 |
| Gayler Design Build Inc. | #384275 | On file | 1979 |
| Polyzos Construction Inc. | #388391 | On file | 1980 |
| Diablo Iron & Fence Inc. | #418902 | On file | 1982 |
Contra Costa 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: 3,193 active B general building contractor licenses in Contra Costa County, 178 of them registered in Danville. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Danville license has been held 17 years, and the longest-standing one dates to 1966. 76 of Danville's 178 licenses (42.7%) 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: 3,192 of the county's 3,193 licenses carry the same $25,000 bond California sets by statute. 284 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 Danville: common questions
How many licensed general contractors are there in Danville?
178 active B general building contractor licenses are registered in Danville, out of 3,193 across Contra Costa County. 173 Danville-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. 178 active B general building contractor licenses are registered in Danville and 3,193 across Contra Costa County, the longest-standing issued in 1966. 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 76 of Danville's 178 currently carry. 284 Contra Costa County licenses expire within 90 days.
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