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

Heating and air conditioning in Diamond Bar, CA

33 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
Listings 41–60How results are ordered
42

Comfort Zone Inc

Glendora, CA · (626) 963-8383

CA-CSLB 760955 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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45

Controlworks Inc

Chino, CA · (909) 627-7155

CA-CSLB 814065 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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47

Cool Temp Engineering Co

Rowland Heights, CA · (714) 308-8989

CA-CSLB 455406 · B C10 +2General contractorElectricianHeating and air conditioning
License activechecked Oct 24, 2026
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48

Coolaris HVAC Inc

Brea, CA · (626) 771-7185

CA-CSLB 1153046 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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54

Cozy Air

West Covina, CA · (626) 260-2099

CA-CSLB 829703 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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56

Custom Airworks

LA Puente, CA · (626) 705-8786

CA-CSLB 1073523 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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59

Dae Sup Han

LA Habra, CA · (917) 862-1521

CA-CSLB 1158358 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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60

Dale's Remodeling

Brea, CA · (714) 813-7699

CA-CSLB 643301 · B C38General contractorHeating and air conditioning
License activechecked Oct 24, 2026
CallDetails