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

Heating and air conditioning in Castro Valley, CA

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

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San Jose 296Los Angeles 292Sacramento 265San Diego 256Riverside 225Fresno 181Bakersfield 179Anaheim 158Glendale 128Corona 117El Cajon 117San Francisco 116Escondido 100Modesto 96Stockton 96Santa Rosa 92
1,278 listingsHow results are ordered
03

Bonetti Frank Plumbing Inc

Castro Valley, CA · (510) 582-0934

CA-CSLB 251165 · C4 C20 +3PlumberHeating and air conditioningGeneral engineering contractor+1
License activechecked Oct 19, 2026
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05

M1 Mechanical Corp

Castro Valley, CA · (415) 579-4129

CA-CSLB 1129897 · C20Heating and air conditioning
License activechecked Oct 19, 2026
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06

Morrison B a

Castro Valley, CA · (510) 538-9817

CA-CSLB 603913 · B C20General contractorHeating and air conditioning
License activechecked Oct 19, 2026
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08

Sigma HVAC & Electric Inc

Castro Valley, CA · (650) 868-7766

CA-CSLB 1128583 · B C10 +1General contractorElectricianHeating and air conditioning
License activechecked Oct 19, 2026
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10

Top One Equipment Care

Castro Valley, CA · (510) 379-8085

CA-CSLB 1040710 · C38 D34Heating and air conditioningSpecialty contractor
License activechecked Oct 19, 2026
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12

Various Energy

Castro Valley, CA · (510) 674-5579

CA-CSLB 1145723 · A B +2General engineering contractorGeneral contractorElectrician+1
License activechecked Oct 19, 2026
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17

Cedar Builders Inc

Hayward, CA · (510) 299-4001

CA-CSLB 1059163 · B C20General contractorHeating and air conditioning
License activechecked Oct 19, 2026
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19

Deng Construction

San Lorenzo, CA · (408) 268-7653

CA-CSLB 857147 · B C10 +2General contractorElectricianHeating and air conditioning+1
License activechecked Oct 19, 2026
CallDetails