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Contractor LookoutCalifornia

Licensed General Contractors in Clayton, California

Updated November 1, 2026 from CSLB's public license file · B General Building Contractor

  • 78licensed general contractors
  • 75active (Clear)
  • 3.8%with a suspension
  • 60.3%workers' comp exempt
  • 22.5 yrsmedian time licensed
  • 42.3%corp / LLC / partnership (57.7% sole owner)
  • 6new in the last 12 months
  • —change tracking began November 1, 2026

There are 78 general contractors based in Clayton in CSLB's current file. 75 (96.2%) have a Clear status as of November 1, 2026.

60.3% report a workers' comp exemption, 2.6 points higher than the statewide figure for general contractors (57.7%), so many of these businesses say they have no employees. The share with a suspension (3.8%) is close to the Contra Costa County rate for the same license (4.5%).

Experience varies: 75.6% have been licensed 10+ years and 6 are new this year (median 22.5 years, vs 15.3 statewide).

General contractors hold CSLB's B (General Building Contractor) license, which covers projects that combine two or more unrelated trades. See the B General Building Contractor guide for what the license covers.

How to check a general contractor's license in Clayton

  1. Look the company up by name or license number (search Clayton). On the profile, confirm three things: Clear status, the B license for this kind of work, and a contractor's bond on file.
  2. Before any money changes hands, verify the license on CSLB's own lookup. Our data comes from CSLB's weekly file, so a very recent change may not show here yet.
  3. Match the license holder's name to the name on the written contract and the person you meet. Since 60.3% of Clayton general contractors claim a workers' comp exemption, ask who will actually do the work. Hiring checklist.

50 of 78 general contractors in Clayton

Clayton general contractors sorted with Clear licenses first, then by years licensed. Badges reflect CSLB's file dated November 1, 2026, not a rating of anyone's work.

Licensed general contractors in Clayton
Business nameLicense #StatusYearsWorkers' compBond
Claiborne Construction 320562 Clear 50 Exempt On file
G N Henley INC 373161 Clear 47 Insured On file
Majestic Landscape 373538 Clear 47 Insured On file
Golden Oak Construction 472526 Clear 41 Insured On file
Grizzly INC 478680 Clear 41 Exempt On file
Seeno Richard B 497536 Clear 40 Exempt On file
Atic Construction INC 510319 Clear 39 Exempt On file
Mitolo Ken Construction 531028 Clear 38 Insured On file
Hatley Construction Company 573170 Clear 37 Exempt On file
Nu Image Painting and Construction 572337 Clear 37 Exempt On file
Fosbery General Building Contractor 585213 Clear 36 Exempt On file
Lamorinda Contractor 598907 Clear 36 Exempt On file
Black Oak Construction 605964 Clear 36 Exempt On file
Nordic General Building Contractor 606970 Clear 35 Exempt On file
Anderson Construction 622558 Clear 35 Insured On file
Magic Hammer Remodeling 630233 Clear 35 Exempt On file
Lucchese and Sons 635229 Clear 34 Exempt On file
Fjellbo & Son Construction INC 660977 Clear 33 Insured On file
Shield of Armor Painting INC 679198 Clear 33 Exempt On file
Mc Carthy Construction 701497 Clear 31 Exempt On file
Sleighter Dennis Const 701231 Clear 31 Exempt On file
Lou's Construction 709870 Clear 31 Insured On file
J & R Floor Services 714096 Clear 31 Insured On file
Mace Electric 714780 Clear 31 Exempt On file
Bravo Building CO INC 716268 Clear 30 Insured On file
J D CO 717757 Clear 30 Exempt On file
Rizzuto Vincent General Contracting 739958 Clear 29 Exempt On file
3d Technical Services INC 743965 Clear 28 Insured On file
Gripe Construction INC 757142 Clear 27 Exempt On file
Jackett Construction 766327 Clear 27 Exempt On file
McCartt Construction INC 770687 Clear 27 Exempt On file
Skuba Construction Services INC 781926 Clear 26 Insured On file
Mike's Maintenance 789947 Clear 25 Exempt On file
Mc Caa J W Construction 794443 Clear 25 Exempt On file
Benedetto's Additions 812284 Clear 24 Exempt On file
Callanta T Enterprises 815926 Clear 23 Insured On file
Raichoudri Construction 820591 Clear 23 Exempt On file
Canclini R J Construction INC 828712 Clear 22 Insured On file
Ronco J A Construction 844344 Clear 22 Exempt On file
R P D Builders 857052 Clear 21 Exempt On file
Marlin Construction 872858 Clear 20 Exempt On file
Gianni Construction 888187 Clear 19 Exempt On file
Purev General Contracting LLC 910780 Clear 18 Insured On file
Motto Construction 914547 Clear 18 Insured On file
Italian Heritage Tile and Stone INC 934372 Clear 17 Insured On file
Mill Robert Construction 933581 Clear 17 Exempt On file
Alternative Design 942495 Clear 16 Exempt On file
Ecobuilding 945538 Clear 16 Exempt On file
Ingram Construction Incorporated 946006 Clear 16 Insured On file
Diablo View Construction INC 962284 Clear 15 Insured On file

See all 78 general contractors in Clayton

Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.

Frequently asked questions

How many licensed general contractors are in Clayton?

CSLB's current public file lists 78 general contractors with a Clayton mailing address. 75 have a Clear status, and 85.9% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).

What license does a general contractor need in California?

General contractors hold CSLB's B (General Building Contractor) license, which covers projects that combine two or more unrelated trades. Any job of $1,000 or more in labor and materials needs a licensed contractor. Read our guide to the $1,000 rule.

How do I check a general contractor's workers' comp?

Each profile shows the workers' comp type, insurer and policy dates from CSLB's file. Among Clayton general contractors, 60.3% are exempt (no employees), 39.7% insured and 0% without current coverage. Verify a policy with CSLB's insurer search (step by step).

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