Registered address: 1600 FACTOR AVE
2705157444 · Source dated 2026-11-15 · Service area not confirmed. · Verify on VA portal →
No public phone or website on record.
Alameda County, California
Licensed Trade Records in Alameda County, California
Browse 6,106 verified licensed trade contractors registered across Alameda County, California (including Oakland, Fremont, Hayward, Berkeley). Every record is compiled from California Contractors State License Board (CA CSLB) public credential files under California Business and Professions Code Division 3, Chapter 9 (Contractors License Law: Class A, Class B General Building, and Class C Specialty Classifications with $25,000 Bond Requirement).
Official State Authority: California Contractors State License Board (CA CSLB) Official Registry · County Seat: Oakland
Municipalities in Alameda County (16)
Select a city or town in Alameda County to view local permit guidance and registered licensed trade records:
6106 licensed trade records · Alameda County, CA
ChangePublic Directory Quality: Official CA CSLB license records across Alameda County · Zero sponsored order · Never sold as a lead · How our data works →
Show registered-address map (6 records on this page)3 approximate areas
Shaded areas mark approximate postal or city locations, not premises or service areas. Circle sizes are illustrative, not postal boundaries. Some records share the same area. Private addresses are excluded.
Open this map to load OpenStreetMap tiles. Your browser will connect to OpenStreetMap and the map library provider.
Registered address: 37421 CENTRALMONT PL
2705177380 · Source dated 2026-11-15 · Service area not confirmed. · Verify on VA portal →
No public phone or website on record.
Registered address: 32960 ALVARADO-NILOS ROAD
2705063557 · Source dated 2026-11-15 · Service area not confirmed. · Verify on VA portal →
No public phone or website on record.
Registered address: 6639 SMITH
2705168465 · Source dated 2026-11-15 · Service area not confirmed. · Verify on VA portal →
No public phone or website on record.
Registered address: 941 W A ST
2705196456 · Source dated 2026-11-15 · Service area not confirmed. · Verify on VA portal →
No public phone or website on record.
Registered address: 229 RICKENBACKER CIR
2705196536 · Source dated 2026-11-15 · Service area not confirmed. · Verify on VA portal →
No public phone or website on record.
Frequently Asked Questions — Alameda County, CA
How are licensed trade credentials verified in Alameda County, California?
Records across Alameda County are sourced directly from the California Contractors State License Board (CA CSLB). California Business and Professions Code Division 3, Chapter 9 (Contractors License Law: Class A, Class B General Building, and Class C Specialty Classifications with $25,000 Bond Requirement)
Which municipalities are covered in the Alameda County directory?
Alameda County coverage includes Oakland, Fremont, Hayward, Berkeley, San Leandro, Livermore, Pleasanton, Alameda, Union City, Dublin, with County Seat in Oakland.
Are licensed contractors in Alameda County, CA required to carry insurance and surety bonds?
Yes. Under California licensing authority regulations, licensed trade contractors typically must maintain active Commercial General Liability insurance, appropriate surety bonds, and state Workers' Compensation coverage before pulling municipal permits.
Other Counties in California
Los Angeles CountySan Diego CountyOrange CountySanta Clara CountySan Francisco CountySacramento CountyRiverside CountySan Bernardino CountyContra Costa CountySan Mateo CountyVentura CountyFresno CountyKern CountySonoma CountyStanislaus CountyMonterey CountySanta Barbara CountyButte CountyShasta CountyHumboldt County
Before the first call
- Describe the job and ask whether it is within their scope and service area.
- Check the credential with its issuing authority and ask what applies where the work will happen.
- Ask about insurance, availability, who will do the work, and a written scope.
- Ask about callout fees, labor or fixed rates, materials, cancellation and any estimate charge.
Verification Overview & Key Takeaways: How to Check Official Credentials
HomeCrafto displays source records with different scopes, including licenses, registrations, municipal permits and community records. A source entry is not proof of qualification for your job. Before signing a work order or paying a deposit, homeowners should confirm that the contractor’s credential number is active, verify that the license classification covers the specific trade scope required for the job, and request a current Certificate of Insurance (COI) directly from the issuing insurance carrier. Independent verification protects your property and ensures compliance with local building codes.
How do you verify a contractor license number and insurance on official portals (FAQ)?
You can verify active license standing and consumer protection rules directly through official government portals, including Washington L&I Contractor Verify, the California Contractors State License Board (CSLB), the Connecticut eLicense Portal, USA.gov State Consumer Protection Offices, and FTC Home Improvement Consumer Guidance. Always confirm municipal permit requirements with your local building department before work begins.