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C20

HVAC Contractor Verification - Page 156

12,316 hvac contractors checked against 6 data sources (Page 156 of 247)

About C20 License

Heating, ventilation, and air conditioning contractors.

12,316

Total Contractors

11,645

Active Licenses

394

Federal Records

Verify a HVAC Contractor

HVAC Contractors

Showing contractors 7751-7800 of 12,316

M P C HEATING & AIR CONDITIONING INC

Clear

License #852950 · SAN FERNANDO

Active

M R V AIR

Clear

License #880279 · PALMDALE

Active

M S B CONSTRUCTION

Clear

License #746882 · RIVERSIDE

Active

M S I

Clear

License #792414 · CARMICHAEL

Active

M S M M INC

Clear

License #999900 · SAN LUIS OBISPO

Active

M S MECHANICAL SERVICE INC

Clear

License #899875 · MONTEBELLO

Active

M S RELIABLE HEATING AND COOLING INC

Clear

License #1050276 · POMONA

Active

M T B

Clear

License #762453 · PETALUMA

Active

M T E MECHANICAL INC

Clear

License #707377 · VAN NUYS

Active

M T M CONSTRUCTION INC

Clear

License #659142 · CITY OF INDUSTRY

Active

M W MECHANICAL INC

Clear

License #1002804 · ESCONDIDO

Active

M X CONSTRUCTION INC

Clear

License #992412 · NIPOMO

Active

M Z COOLING & HEATING INC

Clear

License #1113163 · SUNLAND

Active

M Z MECHANICAL

Clear

License #714343 · SANTEE

Active

M&A MECHANICAL SERVICE LLC

Clear

License #1141566 · LIVERMORE

Active

M&M CONTROLS INC

Clear

License #874206 · SAN DIEGO

Active

M&M HEATING AND AIR CONDITIONING INC

Clear

License #1075284 · BLYTHE

Active

M-23 MECHANICAL SYSTEMS

Clear

License #1083192 · DANVILLE

Active

M.R. COOL AIR CONDITIONING HEATING AND PLUMBING

Clear

License #778466 · DESERT HOT SPRINGS

Active

M1 MECHANICAL CORP

Clear

License #1129897 · CASTRO VALLEY

Active

M1 MECHANICAL HEATING & AIR-CONDITIONING

Clear

License #1056834 · MODESTO

Contr Bond Susp

M2 MECHANICAL

Clear

License #1074283 · ORANGEVALE

Active

M3 MECHANICAL

Clear

License #786760 · ANAHEIM

Active

M3 MEP LLC

Clear

License #1098716 · SACRAMENTO

Active

M3 SERVICE LLC

Clear

License #1099722 · SACRAMENTO

Active

MA EUGENE Y

Clear

License #1021607 · BUENA PARK

Active

MA LIZHONG

Clear

License #1067488 · BREA

Active

MAC AIR HEATING AND AIR CONDITIONING

Clear

License #772239 · CAMARILLO

Active

MAC REFRIGERATION AND AIR CONDITIONING CO

Clear

License #580557 · DIAMOND BAR

Active

MAC TEC CONSTRUCTION COMPANY INC

Clear

License #999544 · SAN FRANCISCO

Active

MAC'S AIRE SERVICE

Clear

License #878306 · SAN BERNARDINO

Active

MAC'S AIRE SERVICE

Clear

License #441003 · SAN BERNARDINO

Active

MAC'S HEATING AND AIR

Clear

License #932524 · ELK GROVE

Active

MAC'S REFRIGERATION SERVICE

Clear

License #321031 · EUREKA

Active

MAC5 MECHANICAL LLC

Clear

License #1108400 · FOUNTAIN VALLEY

Active

MACARTHUR MECHANICAL

Clear

License #1036205 · RAMONA

Active

MACAWSOME LLC

Clear

License #988339 · FONTANA

Active

MACCO MECHANICAL

Clear

License #1142464 · LANCASTER

Active

MACHUCA HEATING AND AIR CONDITIONING

Clear

License #1117573 · SUN VALLEY

Active

MACIAS MECHANICAL

Clear

License #898192 · WATSONVILLE

Active

MACK'S AIR CONDITIONING AND HEATING SERVICES CORPORATION

Clear

License #1043714 · ORO GRANDE

Active

MACKAMUL'S HEATING AND AIR CONDITIONING

Clear

License #463608 · HIGHLAND

Active

MACKEY HEATING & AIR CONDITIONING

Clear

License #880481 · SANTA CLARITA

Active

MACLEOD BRENTON HEATING & AIR

Clear

License #980151 · VISTA

Active

MACONE HEATING AND AIR CONDITIONING

Clear

License #914820 · WOODLAND HILLS

Active

MACRO MECHANICAL INC

Clear

License #968322 · MURRIETA

Active

MAD MECHANICAL HVAC CORP

Clear

License #1124816 · COVINA

Active

MADE SIMPLE HEATING & AIR INC

Clear

License #1056274 · SANTA CLARA

Active

MADISON AIR INC

Clear

License #740225 · ANAHEIM

Active

MADISON APPLIANCE HEATING & AIR CONDITIONING

Clear

License #788351 · OXNARD

Active

How to Verify a HVAC Contractor (C20) in California

California requires all contractors performing hvac work valued at $500+ to hold a valid CSLB C20 license. Of the 12,316 licensed hvac contractors in the state, 95% currently hold active licenses and 3.2% 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 HVAC Contractors

  • Verify NATE certification for technicians working on your system
  • Ask about experience with your specific HVAC brand or system type
  • Confirm they can provide energy efficiency calculations for new installations
  • Check federal databases: SAM.gov, OSHA, DOL, and EPA records
  • Confirm bond: California requires $25,000+ contractor bond (SB 607)

Why Verification Matters for HVAC Work

Under California's "Controlling Employer" doctrine, general contractors face liability for subcontractor safety violations. For hvac work specifically, 3.2% 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.