| Business | Phone |
| Crossroads Heating & Air Cond 21032 Cranbridge Dr, Lake Forest 92630 | (949) 380-8482 |
| Harbor Pointe Air Conditioning 20331 Lake Forest Dr # C9, Lake Forest 92630 | (949) 859-6101 |
| Pure Air Conditioning Po Box 1555, Lake Forest 92609 | (949) 837-8802 |
| Ram Air Engineering 25172 Arctic Ocean Dr # 108, Lake Forest 92630 | (949) 588-6300 |
| Rancho Viejo Air Conditioning Lake Forest 92630 | (949) 206-1512 |
| Saddleback Valley Air Cond Po Box 564, Lake Forest 92609 | (949) 586-3332 |
| Alicia Air Conditioning & Htg 26684 Vista Terrace, Lake Forest 92630 | (949) 830-2201 |
| Alicia Air Conditioning & Htg 26824 Vista Ter, Lake Forest 92630 | (949) 770-2495 |
| Chapparral Air Conditioning Lake Forest 92630 | (949) 770-6920 |