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
04

Arsenal HVAC Inc

San Dimas, CA · (626) 407-7157

CA-CSLB 1107476 · C20Heating and air conditioning
License activechecked Oct 24, 2026
CallDetails
05

Associated Air Balance

Covina, CA · (626) 915-8117

CA-CSLB 851730 · B C8 +1General contractorConcrete contractorHeating and air conditioning
License activechecked Oct 24, 2026
CallDetails
10

B-P Air Inc

Glendora, CA · (626) 480-1811

CA-CSLB 631883 · C20Heating and air conditioning
License activechecked Oct 24, 2026
CallDetails
14

Beal H V a C

Chino, CA · (909) 631-9296

CA-CSLB 931996 · C20Heating and air conditioning
License activechecked Oct 24, 2026
CallDetails
15

Best Air HVAC

LA Puente, CA · (626) 804-4178

CA-CSLB 1084277 · B C20General contractorHeating and air conditioning
License activechecked Oct 24, 2026
CallDetails
16

Best Electric and Air

Montclair, CA · (909) 510-1370

CA-CSLB 872298 · C10 C20ElectricianHeating and air conditioning
License activechecked Oct 24, 2026
CallDetails
18

Blue Grip Squad Inc

Pomona, CA · (909) 242-5235

CA-CSLB 978154 · C20 C36Heating and air conditioningPlumber
License activechecked Oct 24, 2026
CallDetails