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Williamson County, Texas

Licensed Trade Records in Williamson County, Texas

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Browse 360 verified licensed trade contractors registered across Williamson County, Texas (including Round Rock, Cedar Park, Georgetown, Leander, Taylor, Hutto). Every record is compiled from Texas Department of Licensing and Regulation & Texas State Board of Plumbing Examiners (TX TDLR / TSBPE) public credential files under Texas Occupations Code Chapter 1301 (Plumbing License Law via TSBPE), Chapter 1302 (Air Conditioning and Refrigeration via TDLR), and Chapter 1305 ( Texas Electrical Safety and Licensing Act via TDLR).

Official State Authority: Texas Department of Licensing and Regulation & Texas State Board of Plumbing Examiners (TX TDLR / TSBPE) Official Registry · County Seat: Georgetown

Municipalities in Williamson County (8)

Select a city or town in Williamson County to view local permit guidance and registered all trades records:

Georgetown 77Round Rock 72Leander 66Cedar Park 41Hutto 41Taylor 25Liberty Hill 24Jarrell 14

360 all trades records · Williamson County, TX

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Public Directory Quality: Official TX TDLR / TSBPE license records across Williamson County · Zero sponsored order · Never sold as a lead · How our data works →

All trades directory — Williamson County

360 matching records across 8 open municipalities · 25 on this page · Contactable records first, then alphabetical.

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Show registered-address map (21 records on this page)10 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.

4ZIP 786133ZIP 786653ZIP 786412ZIP 786642ZIP 765742ZIP 786282ZIP 786341ZIP 786811ZIP 786261ZIP 78642Approximate postal/city centroid schematic (10 areas)

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Other Counties in Texas

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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

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.