NAICS 238220 · Plumbing, Heating, and Air-Conditioning Contractors

Heating and air conditioning in Clayton, CA

10 licensed heating and air conditioning · every license checked against the issuer's file

More cities in California

San Jose 296Los Angeles 292Sacramento 265San Diego 256Riverside 225Fresno 181Bakersfield 179Anaheim 158Glendale 128Corona 117El Cajon 117San Francisco 116Escondido 100Modesto 96Stockton 96Santa Rosa 92
831 listingsHow results are ordered
63

Apex Air

Walnut Creek, CA · (925) 457-7478

CA-CSLB 1123268 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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67

Ascent Inc

Danville, CA · (844) 627-2368

CA-CSLB 1069809 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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69

Aziz Ahmad Azizi

Concord, CA · (925) 499-3868

CA-CSLB 1161947 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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72

Barberio HVAC

Pleasant Hill, CA · (925) 338-5611

CA-CSLB 1132364 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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73

Bay Air Systems Inc

Concord, CA · (925) 356-3000

CA-CSLB 450929 · C4 C10 +2PlumberElectricianHeating and air conditioning
License activechecked Oct 24, 2026
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75

Boscolai Construction

Danville, CA · (415) 636-8999

CA-CSLB 1120060 · A B +5General engineering contractorGeneral contractorElectrician+2
License activechecked Oct 24, 2026
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77

Building Services

Walnut Creek, CA · (925) 934-4842

CA-CSLB 537679 · B C43General contractorHeating and air conditioning
License activechecked Oct 24, 2026
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79

Cali HVAC Inc

Concord, CA · (925) 478-1746

CA-CSLB 1087460 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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80

California Air Inc

Danville, CA · (925) 248-8117

CA-CSLB 300798 · C20 C43Heating and air conditioning
License activechecked Oct 24, 2026
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