C43

Sheet Metal Contractor Verification - Page 18

1,346 sheet metal contractors checked against 6 data sources (Page 18 of 27)

About C43 License

Sheet metal contractors for ductwork and metal fabrication.

1,346

Total Contractors

1,291

Active Licenses

176

Federal Records

Verify a Sheet Metal Contractor

Sheet Metal Contractors

Showing contractors 851-900 of 1,346

MALDONADO OSCAR E

Clear

License #970804 · SAN FRANCISCO

Active

MARANATHA SHEET METAL

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License #895297 · SANTA ANA

Active

MARANATHA SHEET METAL INC

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License #915024 · SANTA ANA

Active

MARCELLO'S SHEETMETAL SERVICES

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License #1061237 · BLOOMINGTON

Active

MARIN SHEET METAL

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License #472792 · NOVATO

Active

MARINA MECHANICAL SERVICES

Clear

License #416198 · LIVERMORE

Active

MARINA PLUMBING & HEATING

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License #574447 · MARINA

Active

MARINE & RESTAURANT FABRICATORS INC

Clear

License #526053 · SAN DIEGO

Active

MARK OGBURN ENTERPRISES

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License #735395 · SYLMAR

Active

MARTELL SALVADOR

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License #1057010 · SHERMAN OAKS

Active

MARTIN ROOFING AND SHEETMETAL

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License #880473 · SANTA BARBARA

Active

MARTIN SHEET METAL

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License #1000090 · PACOIMA

Active

MARTINICO AND SONS INC

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License #163059 · SAN JOSE

Active

MAST CHRIS S COMPANY

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License #767127 · EL CERRITO

Active

MASTER METALS

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License #957297 · COACHELLA

Contr Bond Susp

MASTER SHEET METAL

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License #638763 · SAN FRANCISCO

Active

MATHEWS ALEX R INC

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License #355393 · DANVILLE

Active

MATRIX HG INC

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License #812232 · CONCORD

Active

MAVERICK METALS INCORPORATED

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License #1116520 · LA PUENTE

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MAXIMILIAN SHEET METAL

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License #1071266 · SAN DIEGO

Active

MAXIMILIAN SHEET METAL CORP

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License #1140454 · SAN DIEGO

Active

MC CUSTOM FABRICATION

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License #715460 · MOSSYROCK

Active

MC DONAGH JOHN BUILDERS AND ENERGY SYSTEMS

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License #422946 · CASTRO VALLEY

Active

MC DONALD O C CO INC

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License #177271 · SAN JOSE

Active

MC KENNEY'S AIR CONDITIONING INC

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License #447218 · BAKERSFIELD

Active

MC LAUGHLIN AIR CONDITIONING CO

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License #752342 · STOCKTON

Active

MC TEARYAN CONSTRUCTION COMPANY

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License #427051 · WINNETKA

Active

MCCARTHY SHEETMETAL

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License #726429 · CONCORD

Active

MCGRATH M G INC

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License #990612 · MAPLEWOOD

Active

MEADOWS MECHANICAL

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License #383620 · GARDENA

Active

MEDINA'S HEATING AND AIR - CONDITIONING INC

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License #584591 · ALHAMBRA

Active

MELGAR & ASSOCIATES MECHANICAL LLC

Clear

License #1111159 · LIVERMORE

Liab Ins Susp

MELGOZA GUTTERS AND SHEET METAL INC

Clear

License #1095912 · SALINAS

Active

MELTON SHEET METAL

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License #170713 · FRESNO

Active

MENDEZ & SONS SHEET METAL WORKS

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License #933164 · LOS ANGELES

Active

MENINI HEATING & AIR CONDITIONING INC

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License #777885 · OAK RUN

Active

METAL BUILDING COMPANY

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License #421040 · OAKLAND

Active

METAL DESIGN & STRATEGY INC

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License #972058 · SAN FRANCISCO

Active

METAL ENGINEERING & MFG

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License #409730 · ONTARIO

Active

METAL PRO BUILDING SOLUTIONS

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License #1145232 · WATERFORD

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METAL TECH SHEET METAL COMPANY

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License #696772 · CARSON

Active

METCOE SKYLIGHT SPECIALTIES

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License #139335 · GARDENA

Active

METROPOLITAN HEATING & AIR CONDITIONING INC

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License #722516 · PASADENA

Active

MEYER SHEET METAL

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License #925890 · ARCADIA

Active

MGD SHEET METAL AND RAIN GUTTERS INC

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License #1030506 · LOS ANGELES

Active

MID COAST MECHANICAL INC

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License #615966 · SAN LUIS OBISPO

Active

MID-LAND SHEET METAL INC

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License #553885 · SANTA MARIA

Active

MIGUEL'S SHEET METAL INC

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License #1127395 · LOS ANGELES

Active

MIKE'S HEATING & AIR INC

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License #785004 · ANDERSON

Active

MILANO MECHANICAL INC

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License #797754 · PETALUMA

Active

How to Verify a Sheet Metal Contractor (C43) in California

California requires all contractors performing sheet metal work valued at $500+ to hold a valid CSLB C43 license. Of the 1,346 licensed sheet metal contractors in the state, 96% currently hold active licenses and 13.1% have at least one federal compliance record.

Manual vetting takes 45+ minutes per contractor and routinely misses violations in databases most people don't know to check. SiteVetter runs CSLB status, SAM.gov debarment, DOL wage violations, OSHA safety citations, and EPA environmental records in seconds—creating a timestamped compliance artifact.

Verification Checklist for Sheet Metal Contractors

  • Verify the contractor license is active and in good standing
  • Request proof of insurance and bonding
  • Get at least 3 written quotes before selecting a contractor
  • Check federal databases: SAM.gov, OSHA, DOL, and EPA records
  • Confirm bond: California requires $25,000+ contractor bond (SB 607)

Why Verification Matters for Sheet Metal Work

Under California's "Controlling Employer" doctrine, general contractors face liability for subcontractor safety violations. For sheet metal work specifically, 13.1% of licensed contractors have federal records that a standard CSLB license check wouldn't reveal. SiteVetter's 5-database check catches what a single-source verification misses.

Data sourced from California Contractors State License Board and federal databases. Updated weekly. For official verification, check directly with CSLB.