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Home services in San Mateo

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511 all trades records · San Mateo

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Public Directory Quality: Official state license records in San Mateo · Zero sponsored order · Never sold as a lead · How our data works →

All trades directory

511 matching records · 25 on this page · Contactable records first, then alphabetical within groups. Coverage is the matched city/category scope.

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Hours, insurance, reviews and service coverage are not established by a license-file entry.

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Jmjj Electric

Official license file Contactable Electrical · Contractors State License Board

Registered address: 2115 SHOREVIEW AVE, San Mateo, CA 94401

951116 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →

+1 more registration for this business
  • 951116 · 2115 SHOREVIEW AVE, San Mateo, CA 94401
Call (650) 868-2401

Korbes Electric

Official license file Contactable Electrical · Contractors State License Board

Registered address: 3920 CASANOVA DRIVE, San Mateo, CA 94403

388678 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →

+1 more registration for this business
  • 388678 · 3920 CASANOVA DRIVE, San Mateo, CA 94403
Call (650) 345-2241

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.
Prepare a project brief

Verification Overview & Key Takeaways: How to Check Official Credentials

Every listing on HomeCrafto is compiled directly from official state and municipal licensing rosters rather than paid lead-generation feeds. 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.

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