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Licensed General Contractors in Discovery Bay, California

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

  • 58licensed general contractors
  • 53active (Clear)
  • 8.6%with a suspension
  • 62.1%workers' comp exempt
  • 18.9 yrsmedian time licensed
  • 39.7%corp / LLC / partnership (60.3% sole owner)
  • 1new in the last 12 months
  • —change tracking began November 1, 2026

Discovery Bay is home to 58 general contractors in CSLB's license file, ranking #20 of 27 Contra Costa County cities for this trade. 91.4% are Clear.

The share with a suspension, 8.6%, is 4.1 points higher than the Contra Costa County rate for the same license (4.5%). 62.1% report a workers' comp exemption, 4.4 points higher than the statewide figure for general contractors (57.7%), so many of these businesses say they have no employees.

The median general contractor here has held a license for 18.9 years (more than the statewide median of 15.3), and 1 license was issued in the last 12 months.

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 Discovery Bay

  1. Find the business in the list below, or search all 58 Discovery Bay 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 62.1% of Discovery Bay general contractors claim a workers' comp exemption, ask who will actually do the work. Hiring checklist.

50 of 58 general contractors in Discovery Bay

Discovery Bay 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 Discovery Bay
Business nameLicense #StatusYearsWorkers' compBond
S J N Construction 250677 Clear 59 Exempt On file
O C M Developers INC 373443 Clear 47 Exempt On file
S G S Incorporated 392133 Clear 46 Insured On file
R J Reynolds Ag Distributors INC 439341 Clear 43 Exempt On file
Simcon Company 452419 Clear 42 Exempt On file
Labor Unlimited 461046 Clear 42 Exempt On file
Ekman and Associates 524102 Clear 38 Exempt On file
S B E Builders 546126 Clear 38 Exempt On file
Custom Modular Structures 560604 Clear 37 Exempt On file
Nicholl Construction 601694 Clear 36 Exempt On file
Stornetta Construction 609115 Clear 35 Exempt On file
Bubniak T 621026 Clear 35 Exempt On file
D L B Construction 626782 Clear 35 Exempt On file
Boddy Construction 702251 Clear 31 Exempt On file
East Bay Design Builders 710713 Clear 31 Insured On file
O'brien Contractors 750337 Clear 28 Exempt On file
Walser Jon Construction INC 752073 Clear 28 Insured On file
Delta Contracting INC 761431 Clear 27 Insured On file
Guidry Construction CO 804594 Clear 24 Exempt On file
Labor Unlimited INC 837307 Clear 22 Insured On file
Prine Ken Construction 840672 Clear 22 Insured On file
Leonard Tim Construction 847852 Clear 22 Exempt On file
O P Framers INC 877553 Clear 20 Insured On file
Simply Integrated 878499 Clear 20 Exempt On file
Christy Plumbing 888948 Clear 19 Insured On file
Ducheney Construction INC 905180 Clear 19 Insured On file
Capelli G A Construction 909990 Clear 18 Insured On file
G O R Construction 916581 Clear 18 Insured On file
Der Tischler INC 918304 Clear 18 Insured On file
Wildfire Design & Build 928907 Clear 17 Insured On file
Shambala Construction INC 938429 Clear 17 Insured On file
Dereis Construction INC 944961 Clear 16 Insured On file
Fehr Timothy P 951766 Clear 16 Exempt On file
Mc Allister Construction 953063 Clear 16 Exempt On file
Piantanida Construction INC 982408 Clear 13 Exempt On file
Dms Construction 982954 Clear 13 Exempt On file
Environmental Mitigation Services INC 996125 Clear 12 Exempt On file
Home Front Heating and Air Conditioning INC 1013009 Clear 10 Insured On file
Mc Donough Construction 1024177 Clear 9 Exempt On file
Destny68 Construction 1044236 Clear 8 Exempt On file
M G Construction 1058778 Clear 7 Exempt On file
Db Network Consulting INC 1071386 Clear 5 Insured On file
Hebert Arthur Construction 1071306 Clear 5 Exempt On file
Big League Builder 1073140 Clear 5 Exempt On file
D R H Construction 1105463 Clear 3 Exempt On file
Diablo Excavation & Construction 1110240 Clear 3 Insured On file
Blue Jade Construction INC 1117078 Clear 2 Insured On file
Jb Builder 1118999 Clear 2 Insured On file
Sb Construction 1127406 Clear 2 Exempt On file
Velazquez and Sons Construction CO 1128000 Clear 2 Exempt On file

See all 58 general contractors in Discovery Bay

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 Discovery Bay?

CSLB's current public file lists 58 general contractors with a Discovery Bay mailing address. 53 have a Clear status, and 87.9% 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?

CSLB issues the B General Building Contractor classification for this work. In Contra Costa County, 91.4% of Discovery Bay'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?

Open the contractor's profile here to see the workers' comp type and insurer from CSLB's file. In Discovery Bay, 36.2% of general contractors list a policy, 62.1% claim an exemption and 1.7% show no current coverage. Confirm the policy with CSLB's workers' comp search before work starts. How to check workers' comp.

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