Best Licensed General Contractors in Newark, CA
94 general contractors registered in Newark 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.
- 3,239 active B general building contractor licenses in Alameda County; 98 registered in Newark
- 42 of Newark's 98 licenses (42.9%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Newark: 7 years
- Longest Newark licensure: since 1965
- 250 county licenses reach their expiration date within 90 days
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- Verified
- August 22, 2026
- Licensed since
- 1965
- Phone
- (650) 961-2742
- Verified
- August 22, 2026
- Licensed since
- 1987
- Phone
- (408) 593-5564
- Verified
- August 22, 2026
- Licensed since
- 1989
- Phone
- (510) 793-5189
- Verified
- August 22, 2026
- Licensed since
- 1991
- Phone
- (510) 453-5334
- Verified
- August 22, 2026
- Licensed since
- 1993
- Phone
- (510) 713-9536
- Verified
- August 22, 2026
- Licensed since
- 1994
- Phone
- (510) 793-7470
- Verified
- August 22, 2026
- Licensed since
- 1995
- Phone
- (510) 714-3617
- Verified
- August 22, 2026
- Licensed since
- 1999
- Phone
- (510) 782-9432
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Ferma Corporation | #236337 | On file | 1965 |
| Advance Heating And Air Conditioning | #517993 | On file | 1987 |
| Four Seasons Pool Service Inc. | #573207 | On file | 1989 |
| C George Construction | #619567 | On file | 1991 |
| D J Balling Construction | #682867 | On file | 1993 |
| On Time Builders | #684684 | Exempt or none on file | 1994 |
Alameda 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: 3,239 active B general building contractor licenses in Alameda County, 98 of them registered in Newark. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Newark license has been held 7 years, and the longest-standing one dates to 1965. 42 of Newark's 98 licenses (42.9%) 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: 3,237 of the county's 3,239 licenses carry the same $25,000 bond California sets by statute. 250 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 Newark: common questions
How many licensed general contractors are there in Newark?
98 active B general building contractor licenses are registered in Newark, out of 3,239 across Alameda County. 94 Newark-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. 98 active B general building contractor licenses are registered in Newark and 3,239 across Alameda County, the longest-standing issued in 1965. 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 42 of Newark's 98 currently carry. 250 Alameda County licenses expire within 90 days.
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