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San Mateo County, California

Licensed Trade Records in San Mateo County, California

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Browse 3,358 verified licensed trade contractors registered across San Mateo County, California (including San Mateo, Daly City, Redwood City, South San Francisco). 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: Redwood City

Municipalities in San Mateo County (13)

Select a city or town in San Mateo County to view local permit guidance and registered licensed trade records:

Redwood City 586San Mateo 519Daly City 422South San Francisco 319Burlingame 263San Carlos 234San Bruno 209Pacifica 207Millbrae 168Menlo Park 156Belmont 124Half Moon Bay 84Foster City 67

3358 licensed trade records · San Mateo County, CA

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Public Directory Quality: Official CA CSLB license records across San Mateo County · Zero sponsored order · Never sold as a lead · How our data works →

All trades directory — San Mateo County

3358 matching records across 13 open municipalities · 25 on this page · Contactable records first, then alphabetical.

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Show registered-address map (25 records on this page)14 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.

6ZIP 940615ZIP 940152ZIP 940102ZIP 940701ZIP 940801ZIP 944021ZIP 940141ZIP 940191ZIP 940251ZIP 940301ZIP 944041ZIP 944011ZIP 940441ZIP 94403Approximate postal/city centroid schematic (14 areas)

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Frequently Asked Questions — San Mateo County, CA

How are licensed trade credentials verified in San Mateo County, California?

Records across San Mateo 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 San Mateo County directory?

San Mateo County coverage includes San Mateo, Daly City, Redwood City, South San Francisco, San Bruno, Burlingame, Menlo Park, Pacifica, Foster City, Belmont, with County Seat in Redwood City.

Are licensed contractors in San Mateo 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 CountyAlameda CountyRiverside CountySan Bernardino CountyContra Costa 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.
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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.