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Licensed General Contractors in Alamo, California

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

  • 92licensed general contractors
  • 88active (Clear)
  • 4.3%with a suspension
  • 58.7%workers' comp exempt
  • 27.7 yrsmedian time licensed
  • 57.6%corp / LLC / partnership (42.4% sole owner)
  • 4new in the last 12 months
  • —change tracking began November 1, 2026

CSLB's public data lists 92 general contractors with a mailing address in Alamo, and 88 of them (95.7%) show a Clear primary status.

58.7% report a workers' comp exemption, 1 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 (4.3%) is close to the Contra Costa County rate for the same license (4.5%).

4 of these licenses are less than a year old, while 78.3% have been held for 10 years or more. The median is 27.7 years.

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 Alamo

  1. Find the business in the list below, or search all 92 Alamo listings, and open its profile. You want a Clear status and the B classification (a B license can also cover it as part of a multi-trade job).
  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 58.7% of Alamo general contractors claim a workers' comp exemption, ask who will actually do the work. Hiring checklist.

50 of 92 general contractors in Alamo

Alamo 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 Alamo
Business nameLicense #StatusYearsWorkers' compBond
R L Ziegenbein Construction INC 322200 Clear 50 Insured On file
Ferreira Robert John 347245 Clear 49 Exempt On file
Live Oak Construction INC 346437 Clear 49 Exempt On file
Crowell Development INC 351565 Clear 48 Exempt On file
Young D W Construction Company INC 365358 Clear 48 Insured On file
Gester Ralf E 389079 Clear 46 Exempt On file
Johanson Construction 389129 Clear 46 Exempt On file
Henley J D General Contractor 436566 Clear 43 Insured On file
Cosetti Tim 446276 Clear 43 Exempt On file
Hanson Ronald Construction 450318 Clear 42 Exempt On file
Bifulco Builders INC 455242 Clear 42 Insured On file
Bolla Jerry 453663 Clear 42 Exempt On file
Mellinger Construction INC 457088 Clear 42 Insured On file
Reed William Edward 517213 Clear 39 Exempt On file
Rkh Constructors INC 522195 Clear 38 Insured On file
Cross Larry C 528622 Clear 38 Exempt On file
Bracelin Construction 548877 Clear 38 Exempt On file
Thomas James Construction 551777 Clear 37 Exempt On file
H D K Associates 552773 Clear 37 Exempt On file
Anderson Arthur L 562161 Clear 37 Insured On file
Mc Kee C A Construction General Contractor 562734 Clear 37 Insured On file
N S General Contractors INC 566459 Clear 37 Insured On file
Home Counties Property CO INC 578163 Clear 37 Exempt On file
Kiper Development INC 605434 Clear 36 Insured On file
Cullum William Harold 612322 Clear 35 Exempt On file
D L I Construction 612726 Clear 35 Insured On file
Morgan - Bonanno Development INC 631559 Clear 35 Insured On file
Walsh Construction CO 637836 Clear 34 Exempt On file
Taylor Restaurant Systems INC 670819 Clear 33 Exempt On file
Crowder Construction INC 675341 Clear 33 Insured On file
Barsell Construction INC 683919 Clear 32 Insured On file
Ella 685925 Clear 32 Insured On file
Jsm Construction 693146 Clear 32 Exempt On file
Irving Peter Electric INC 716757 Clear 30 Insured On file
Ridgecrest Builders INC 717198 Clear 30 Insured On file
Nahas Company 719775 Clear 30 Exempt On file
David Langon Construction 723850 Clear 30 None On file
Dimartino Todd R 727118 Clear 30 Exempt On file
David Brothers Construction INC 728410 Clear 30 Insured On file
Westwind Builders and Electric INC 728801 Clear 30 Insured On file
Frank Karl Company the 730773 Clear 29 Insured On file
Suncrest Homes INC 730184 Clear 29 Exempt On file
Trademark Homes LTD 745820 Clear 28 Exempt On file
Performance Equipment INC 747771 Clear 28 Insured On file
Pacific Developers & Construction INC 773317 Clear 26 Insured On file
Davis Donald L Builders INC 776611 Clear 26 Insured On file
Lastowski Martin 808892 Clear 24 Exempt On file
Sm Sykes General Contractor 810335 Clear 24 Insured On file
Coast Remodeling and Construction INC 826164 Clear 23 Exempt On file
Sallstrom Leif 837046 Clear 22 Exempt On file

See all 92 general contractors in Alamo

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 Alamo?

CSLB's current public file lists 92 general contractors with a Alamo mailing address. 88 have a Clear status, and 90.2% 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?

CSLB issues the B General Building Contractor classification for this work. In Contra Costa County, 95.7% of Alamo's holders are Clear right now. The license requirement starts at $1,000 per job (the minor-work 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 Alamo general contractors, 58.7% are exempt (no employees), 39.1% insured and 2.2% without current coverage. Verify a policy with CSLB's insurer search (step by step).

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