Best Licensed General Contractors in Concord, CA
477 general contractors registered in Concord 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; 504 registered in Concord
- 217 of Concord's 504 licenses (43.1%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Concord: 16 years
- Longest Concord licensure: since 1929
- 284 county licenses reach their expiration date within 90 days
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- Verified
- August 22, 2026
- Licensed since
- 1929
- Phone
- (925) 602-6400
2.Conco
- Verified
- August 22, 2026
- Licensed since
- 1961
- Phone
- (925) 685-6799
- Verified
- August 22, 2026
- Licensed since
- 1963
- Phone
- (925) 689-8100
- Verified
- August 22, 2026
- Licensed since
- 1966
- Phone
- (925) 766-6982
- Verified
- August 22, 2026
- Licensed since
- 1967
- Phone
- (925) 283-2528
- Verified
- August 22, 2026
- Licensed since
- 1969
- Phone
- (925) 671-7711
- Verified
- August 22, 2026
- Licensed since
- 1973
- Phone
- (925) 568-2200
- Verified
- August 22, 2026
- Licensed since
- 1973
- Phone
- (925) 676-2798
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Swinerton Builders | #92 | On file | 1929 |
| Conco | #199902 | On file | 1961 |
| Enterprise Roofing Service Inc. | #221274 | On file | 1963 |
| American Refrigerant Services Inc. | #246018 | On file | 1966 |
| Lescure Company Inc. | #248204 | On file | 1967 |
| Seecon Homes Inc. | #260260 | On file | 1969 |
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, 504 of them registered in Concord. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Concord license has been held 16 years, and the longest-standing one dates to 1929. 217 of Concord's 504 licenses (43.1%) 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 Concord: common questions
How many licensed general contractors are there in Concord?
504 active B general building contractor licenses are registered in Concord, out of 3,193 across Contra Costa County. 477 Concord-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. 504 active B general building contractor licenses are registered in Concord and 3,193 across Contra Costa County, the longest-standing issued in 1929. 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 217 of Concord's 504 currently carry. 284 Contra Costa County licenses expire within 90 days.
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