C-2

Insulation & Acoustical Contractor Verification - Page 20

1,216 insulation & acoustical contractors checked against 6 data sources (Page 20 of 25)

About C-2 License

Insulation and acoustical contractors for thermal and sound insulation.

1,216

Total Contractors

1,180

Active Licenses

153

Federal Records

Verify an Insulation & Acoustical Contractor

Insulation & Acoustical Contractors

Showing contractors 951-1000 of 1,216

R A H ENTERPRISES

Clear

License #649064 · FOLSOM

Active

R A M INSULATION INC

Clear

License #994116 · SIGNAL HILL

Active

R B H INSULATION INC

Clear

License #558799 · HAWTHORNE

Active

R C ENTERPRIZES

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License #491517 · BAKERSFIELD

Active

R E DRYWALL CONTRACTING INC

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License #584494 · SAN DIMAS

Active

R J I ACOUSTICS

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License #1108320 · SAN DIEGO

Active

R M INSULATION

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License #768657 · DUCOR

Active

R R ELECTRIC HEATING & AIR

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License #714651 · MOORPARK

Active

R V H CONSTRUCTORS INC

Clear

License #818630 · TUSTIN

Active

R-COLD INC

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License #440225 · PERRIS

Active

R-LINE INSULATION INCORPORATED

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License #1075141 · STOCKTON

Active

RABAINO MIKE ROOFING INC

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License #718002 · WOODLAND

Active

RADIUS CONSTRUCTION

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License #481146 · FRESNO

Active

RAMCO

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License #933661 · MADERA

Active

RAYMOND - NORTHERN CALIFORNIA INC

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License #307786 · ORANGE

Active

RAYMOND GEORGE M CO

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License #104881 · ORANGE

Active

RAYMOND-STANDARD A JOINT VENTURE

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License #1065365 · ORANGE

Active

RC CONSTRUCTION

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License #1079467 · RESEDA

Active

READ RICHARD

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License #992621 · SIMI VALLEY

Active

RED SKY INC

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License #821283 · CRESCENT CITY

Active

REDWOOD INSULATION

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License #1044785 · FULTON

Active

RELIABLE ENERGY MANAGEMENT INC

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License #704414 · PARAMOUNT

Active

RELYONT INSULATION

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License #1111555 · MISSION VIEJO

Active

REMAKLUS GENERAL CONTRACTING AND ACOUSTICS

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License #1069793 · YUCCA VALLEY

Active

REMEDI8 LLC

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License #1056460 · LENEXA

Active

RENOVA CONSTRUCTION

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License #1088502 · SANTA ANA

Active

REPIPE CHAMPIONS PLUMBING AND ROOTER INC

Clear

License #1057926 · SAN JOSE

Active

RESTO BROS, INC

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License #1097850 · CORONA

Active

RICHARD SMITH

Clear

License #1136072 · NOVATO

Active

RIG INSULATION

Clear

License #1052637 · LAS VEGAS

Work Comp Susp

RIVERA CONSTRUCTION

Clear

License #823218 · SONORA

Active

RIVERCITY ROOFING INC

Clear

License #985269 · WEST SACRAMENTO

Active

RMC INSULATION EXPERTS INC

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License #1148439 · MANTECA

Active

ROBERT INSULATION & DRYWALL INC

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License #704473 · NOVATO

Active

ROBERT MICHAEL DONOGHUE

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License #447386 · SAN JUAN CAPISTRANO

Active

ROBERTS FIRESTOP

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License #478057 · STOCKTON

Active

ROBLES GONZALEZ VICTOR M

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License #768869 · SOUTH GATE

Active

RODERS J K COMPANY

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License #720903 · LAKESIDE

Active

RODRIGUEZ INSULATION

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License #928053 · FRESNO

Active

ROGERS MARTIN A INC

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License #928843 · SAN DIMAS

Active

ROLLING PLAINS CONSTRUCTION INC

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License #777187 · HENDERSON

Active

RONIN ACOUSTICS

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License #1126100 · VISTA

Active

ROOFER BROS THE

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License #1107595 · CHATSWORTH

Active

ROOFMAX

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License #841422 · LIVERMORE

Active

ROUCH BUILDERS

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License #853290 · FRESNO

Active

ROUCH BUILDERS

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License #371432 · FRESNO

Active

ROXXOR PRO INSULATION CO

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License #1131479 · FRESNO

Active

RUBIO ACOUSTICAL INTERIORS

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License #1110644 · BRENTWOOD

Active

RUIZ INSULATION

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License #1043821 · SACRAMENTO

Active

RUSS CORP THE

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License #1025335 · MERCED

Active

How to Verify a Insulation & Acoustical Contractor (C-2) in California

California requires all contractors performing insulation & acoustical work valued at $500+ to hold a valid CSLB C-2 license. Of the 1,216 licensed insulation & acoustical contractors in the state, 97% currently hold active licenses and 12.6% 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 Insulation & Acoustical 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 Insulation & Acoustical Work

Under California's "Controlling Employer" doctrine, general contractors face liability for subcontractor safety violations. For insulation & acoustical work specifically, 12.6% 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.