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San Diego County, California

Heating & cooling in San Diego County, California

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Browse 694 verified heating & cooling registered across San Diego County, California (including San Diego, Chula Vista, Oceanside, Escondido, Carlsbad, El Cajon). 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: San Diego

Municipalities in San Diego County (19)

Select a city or town in San Diego County to view local permit guidance and registered heating & cooling records:

San Diego 232El Cajon 92Escondido 80Chula Vista 52Oceanside 43Vista 32Santee 22Poway 18National City 17Fallbrook 16Ramona 16Carlsbad 15La Mesa 14San Marcos 14Spring Valley 14Coronado 4Encinitas 4La Jolla 3Lemon Grove 3

694 heating & cooling records · San Diego County, CA

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

Heating & cooling directory — San Diego County

694 matching records across 19 open municipalities · 25 on this page · Contactable records first, then alphabetical.

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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.
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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.