| Business | Phone |
| A & B Air Conditioning & Htg 1224 Pepper Dr, El Cajon 92021 | (619) 596-0653 |
| Abc Heating & Air 1985 Friendship Dr # L, El Cajon 92020 | (619) 596-1566 |
| Asi Hastings Inc 1250 Greenfield Dr, El Cajon 92021 | (619) 590-9300 |
| Bailey Refrigeration Htg & A/C 1606 Lomacita Ter, El Cajon 92021 | (619) 442-0723 |
| Cailfornia Cooling Supply Co 1922 Friendship Dr, El Cajon 92020 | (619) 287-4585 |
| Countywide Mechanical Systems 1939 Friendship Dr # F, El Cajon 92020 | (619) 449-9900 |
| East County Heating & Air Cond 721 S Lincoln Ave, El Cajon 92020 | (619) 442-1718 |
| Dudley Construction Inc El Cajon 92020 | (619) 442-9520 |
| A-Aall Svc Inc 1177 N 2nd St, El Cajon 92021 | (619) 230-0240 |
| Accu Air Inc 1318 Bermuda Ln, El Cajon 92021 | (619) 588-6600 |
| Air Best Htg & A C Inc 1130 Broadway, El Cajon 92021 | (619) 461-1388 |
| Air Doc 1444 Pioneer Way # 8, El Cajon 92020 | (619) 588-9703 |
| Reliable Appliance Svc Co 324 Coogan Way, El Cajon 92020 | (714) 544-0555 |
| Reliable Service Co 324 Coogan Way, El Cajon 92020 | (619) 589-2313 |
| Quality Mechanical 1536 Fayette St, El Cajon 92020 | (619) 449-2735 |
| On Call Appliance Co 324 Coogan Way, El Cajon 92020 | (619) 447-1565 |
| Mountain Metals Heating & Ac 13666 Avenida Del Charro, El Cajon 92021 | (619) 561-7650 |
| G-Force Heating & Air 1917 Jamacha Rd, El Cajon 92019 | (619) 440-8406 |
| Gwb Air Conditioning & Htg 2363 Needham Rd # 208, El Cajon 92020 | (619) 562-0490 |
| Heida's Air Conditioning 1930 Flume Dr, El Cajon 92021 | (619) 447-4744 |