Independent site · Not affiliated with CSLB or any state agency
Contractor LookoutCalifornia

Licensed General Contractors in Newark, California

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

  • 116licensed general contractors
  • 112active (Clear)
  • 3.4%with a suspension
  • 56.9%workers' comp exempt
  • 8 yrsmedian time licensed
  • 46.6%corp / LLC / partnership (53.4% sole owner)
  • 13new in the last 12 months
  • —change tracking began November 1, 2026

Newark is home to 116 general contractors in CSLB's license file, ranking #10 of 16 Alameda County cities for this trade. 96.6% are Clear.

About 56.9% report a workers' comp exemption, roughly the statewide norm for general contractors. The share with a suspension (3.4%) is close to the Alameda County rate for the same license (4.2%).

13 of these licenses are less than a year old, while 42.2% have been held for 10 years or more. The median is 8 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 Newark

  1. Find the business in the list below, or search all 116 Newark 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 56.9% of Newark general contractors claim a workers' comp exemption, ask who will actually do the work. Hiring checklist.

50 of 116 general contractors in Newark

Newark 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 Newark
Business nameLicense #StatusYearsWorkers' compBond
Ferma Corporation 236337 Clear 61 Insured On file
Thomas Roy Construction 425012 Clear 44 Exempt On file
Baca L E Construction Services 450941 Clear 42 Exempt On file
Socrates Construction Services 451216 Clear 42 Exempt On file
Tennant Interiors 483178 Clear 40 Exempt On file
Advance Heating and Air Conditioning 517993 Clear 39 Insured On file
Four Seasons Pool Service INC 573207 Clear 37 Insured On file
George C Construction 619567 Clear 35 Insured On file
D J Balling Construction 682867 Clear 32 Insured On file
On Time Builders 684684 Clear 32 Exempt On file
B - Line Building Services 695815 Clear 32 Exempt On file
Rosa John V 707336 Clear 31 Exempt On file
R & M Quality Windows and Doors 709893 Clear 31 Insured On file
J Allen Builders 731158 Clear 29 Exempt On file
Kinnon Builders 734400 Clear 29 Exempt On file
Adams Keith Construction 744972 Clear 28 Exempt On file
Ajitco Electric & Const CO 752463 Clear 28 Exempt On file
Ashley Interiors INC 760024 Clear 27 Insured On file
Machado J INC 762848 Clear 27 Insured On file
Watermark Builders INC 803694 Clear 24 Insured On file
Korfhage Construction 809293 Clear 24 Insured On file
Rojo Const 840052 Clear 22 Exempt On file
Baca Andrew Contracting Services 855128 Clear 21 Exempt On file
Tommy Dean General Construction 861677 Clear 21 Exempt On file
Casillas Construction 862522 Clear 21 Insured On file
Fran CO Construction 868151 Clear 20 Insured On file
Newark Fence INC 881412 Clear 20 Insured On file
Fernandez Manuel Construction 885369 Clear 20 Exempt On file
Aldea Quality Construction INC 888530 Clear 19 Insured On file
Crisanto's Quality Construction INC 888527 Clear 19 Insured On file
Strong Built Construction 900803 Clear 19 Exempt On file
Burleigh Troy 917887 Clear 18 Insured On file
Houle Construction 916653 Clear 18 Exempt On file
Mehdavi Construction 921176 Clear 18 Insured On file
A L Construction Corp 922363 Clear 18 Exempt On file
Kenji Construction 927352 Clear 17 Exempt On file
H S Construction 937498 Clear 17 Exempt On file
Stich Construction INC 938969 Clear 17 Insured On file
Bianchi Construction 958765 Clear 15 Exempt On file
Li Weihua 974552 Clear 14 Exempt On file
Formosa Electric Corp 976353 Clear 14 Insured On file
Wiley Construction 975873 Clear 14 Exempt On file
Guru Construction INC 986464 Clear 13 None On file
Xian Da Song 998748 Clear 12 Exempt On file
Epc Construction Services 1005139 Clear 11 Exempt On file
Go Overboard Construction 1015844 Clear 10 Exempt On file
R H S Construction 1021933 Clear 9 Exempt On file
Eram Builders 1028418 Clear 9 Insured On file
Tradequip Corporation 1030217 Clear 9 Insured On file
Blue Contract Builder 1032436 Clear 9 Exempt On file

See all 116 general contractors in Newark

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 Newark?

CSLB's current public file lists 116 general contractors with a Newark mailing address. 112 have a Clear status, and 89.7% 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 Newark general contractors, 56.9% are exempt (no employees), 40.5% insured and 2.6% without current coverage. Verify a policy with CSLB's insurer search (step by step).

Related

General Contractors in nearby cities

More general contractors lists in Alameda County

Other licensed trades in Newark

Guides