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Plumbing in Los Angeles County, California

Browse 2,837 verified plumbing registered across Los Angeles County, California (including Los Angeles, Long Beach, Santa Clarita, Glendale, Lancaster, Palmdale). 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: Los Angeles

Municipalities in Los Angeles County (58)

Select a city or town in Los Angeles County to view local permit guidance and registered plumbing records:

Los Angeles 530Long Beach 137Glendale 119Van Nuys 115Burbank 98Torrance 88North Hollywood 83Sylmar 81Whittier 81Northridge 64Lancaster 62Granada Hills 61Palmdale 60Pasadena 56Covina 47Reseda 47Woodland Hills 46Downey 45Gardena 45Sun Valley 45Santa Clarita 43Sherman Oaks 41Inglewood 38Canoga Park 37Redondo Beach 37Chatsworth 36Encino 35Bellflower 34Glendora 34Lakewood 34Santa Monica 34Tarzana 34Hawthorne 30Compton 29Norwalk 29West Covina 26Pacoima 25Pomona 25Culver City 24Baldwin Park 22El Monte 22La Mirada 20Lynwood 20Monterey Park 20Diamond Bar 19South Gate 19Arcadia 17Cerritos 17Paramount 17Rosemead 17Carson 15Montebello 15Azusa 13Alhambra 12Beverly Hills 12Huntington Park 10Pico Rivera 9West Hollywood 6

2837 plumbing records · Los Angeles County, CA

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

Plumbing directory — Los Angeles County

2837 matching records across 58 open municipalities · 25 on this page · Contactable records first, then alphabetical.

A B E Plumbing Heating & Air

Official license file Contactable General contracting · Contractors State License Board · Specialty scope: Plumbing & Heating · Additional recorded trades: Plumbing, Heating & cooling

Registered address: 7341 FULTON AVE, North Hollywood, CA 91605

678309 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →

+1 more registration for this business
  • 678309 · 7341 FULTON AVE, North Hollywood, CA 91605
Call (818) 761-8599
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Bestline Plumbing Heating And Construction Inc

Official license file Contactable General contracting · Contractors State License Board · Specialty scope: Plumbing & Heating · Additional recorded trades: Plumbing, Heating & cooling

Registered address: 15523 S VERMONT AVENUE, Gardena, CA 90247

323732 · Source dated 2026-10-18 · Service area not confirmed. · Verify on California portal →

+2 more registrations for this business
  • 323732 · 15523 S VERMONT AVENUE, Gardena, CA 90247
  • 323732 · 15523 S VERMONT AVENUE, Gardena, CA 90247
Call (310) 323-5115
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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.