Best Licensed Solar Contractors in Concord, CA
11 solar companies registered in Concord hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by workers' compensation cover and years licensed.
- 45 active C-46 solar licenses in Contra Costa County; 11 registered in Concord
- 10 of Concord's 11 licenses (90.9%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Concord: 18 years
- Longest Concord licensure: since 1984
- 4 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1984
- Phone
- (925) 313-0600
- Verified
- August 17, 2026
- Licensed since
- 1989
- Phone
- (925) 825-5658
- Verified
- August 17, 2026
- Licensed since
- 1994
- Phone
- (925) 755-4440
- Verified
- August 17, 2026
- Licensed since
- 1996
- Phone
- (925) 827-5561
- Verified
- August 17, 2026
- Licensed since
- 1999
- Phone
- (510) 569-9100
- Verified
- August 17, 2026
- Licensed since
- 2007
- Phone
- (925) 516-3900
- Verified
- August 17, 2026
- Licensed since
- 2008
- Phone
- (925) 284-7336
- Verified
- August 17, 2026
- Licensed since
- 2010
- Phone
- (925) 566-8282
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Diablo Solar Services Inc. | #454228 | On file | 1984 |
| Alcor Enterprises | #559721 | On file | 1989 |
| Danny B Meinecke DBA Refreshed Heating & Cooling | #697406 | On file | 1994 |
| Swift Certified Mechanical | #717212 | On file | 1996 |
| N V Heathorn Co | #761659 | On file | 1999 |
| West Coast Solar Inc. | #908549 | On file | 2007 |
Contra Costa County solar licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 45 active C-46 solar licenses in Contra Costa County, 11 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 18 years, and the longest-standing one dates to 1984. 10 of Concord's 11 licenses (90.9%) 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: 45 of the county's 45 licenses carry the same $25,000 bond California sets by statute. 4 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.
Solar Contractors in Concord: common questions
How many licensed solar contractors are there in Concord?
11 active C-46 solar licenses are registered in Concord, out of 45 across Contra Costa County. 11 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 solar contractors?
Yes. California licenses contractors by classification, and C-46 is the CSLB classification that authorises this work. 11 active C-46 solar licenses are registered in Concord and 45 across Contra Costa County, the longest-standing issued in 1984. Only CLEAR, unexpired licenses appear here.
How do I check a solar 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 10 of Concord's 11 currently carry. 4 Contra Costa County licenses expire within 90 days.
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