Best Licensed General Contractors in Kensington, CA
18 general contractors registered in Kensington 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; 18 registered in Kensington
- 6 of Kensington's 18 licenses (33.3%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Kensington: 26 years
- Longest Kensington licensure: since 1983
- 284 county licenses reach their expiration date within 90 days
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- Verified
- August 22, 2026
- Licensed since
- 1983
- Phone
- (510) 524-8058
- Verified
- August 22, 2026
- Licensed since
- 1985
- Phone
- (510) 418-7978
- Verified
- August 22, 2026
- Licensed since
- 1995
- Phone
- (510) 654-3339
- Verified
- August 22, 2026
- Licensed since
- 2003
- Phone
- (510) 816-0653
- Verified
- August 22, 2026
- Licensed since
- 2020
- Phone
- (510) 526-5849
- Verified
- August 22, 2026
- Licensed since
- 2022
- Phone
- (415) 307-8820
- Verified
- August 22, 2026
- Licensed since
- 1986
- Phone
- (510) 910-6868
- Verified
- August 22, 2026
- Licensed since
- 1989
- Phone
- (510) 816-4026
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Ironwood Construction Company | #444427 | On file | 1983 |
| Greg Sage DBA Green Mountain Builder | #468567 | On file | 1985 |
| Omni Painting And Waterproofing Inc. | #703887 | On file | 1995 |
| Sensible Builders Incorporated | #824356 | On file | 2003 |
| Storesund Construction Inc. | #1069275 | On file | 2020 |
| C&n Construction Group Inc. | #1091145 | On file | 2022 |
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, 18 of them registered in Kensington. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Kensington license has been held 26 years, and the longest-standing one dates to 1983. 6 of Kensington's 18 licenses (33.3%) 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 Kensington: common questions
How many licensed general contractors are there in Kensington?
18 active B general building contractor licenses are registered in Kensington, out of 3,193 across Contra Costa County. 18 Kensington-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. 18 active B general building contractor licenses are registered in Kensington and 3,193 across Contra Costa County, the longest-standing issued in 1983. 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 6 of Kensington's 18 currently carry. 284 Contra Costa County licenses expire within 90 days.