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 1–20How results are ordered
10

AC Tech Inc

West Covina, CA · (626) 689-8068

CA-CSLB 1095928 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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15

Ace Pelizon Plumbing

Covina, CA · (626) 331-0701

CA-CSLB 1154407 · C10 C20 +2ElectricianHeating and air conditioningPlumber+1
License activechecked Oct 24, 2026
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17

Acr Air Conditioning

Hacienda Heights, CA · (626) 579-7870

CA-CSLB 1061540 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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18

Acs Builders

Chino, CA · (909) 270-2111

CA-CSLB 1083415 · B C10 +2General contractorElectricianHeating and air conditioning
License activechecked Oct 24, 2026
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19

Active Air

Chino Hills, CA · (909) 597-5539

CA-CSLB 943433 · C20Heating and air conditioning
License activechecked Oct 24, 2026
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