| All AC & Heating | All AC & Heating | — | (619) 467-1125 | HVAC | Alpine · Alpine County | — | — |
| Alpine Air Conditioning & Heating | Alpine Air Conditioning & Heating | — | (951) 443-0766 | HVAC | Moreno Valley · Alpine County | — | — |
| Alpine Air Products | Alpine Air Products | — | (888) 675-2616 | HVAC | Tustin · Alpine County | — | — |
| Alpine Crest Air Conditioning | Alpine Crest Air Conditioning | — | (209) 286-0801 | HVAC | Irvine · Alpine County | — | — |
| Alpine Heating & Air Conditioning | Alpine Heating & Air Conditioning | — | (877) 659-0184 | HVAC | Alpine · Alpine County | — | — |
| Alpine Plumbing Heating And Air | Alpine Plumbing Heating And Air | — | (626) 608-1032 | HVAC | San Dimas · Alpine County | — | — |
| Hall's Heating And Air | Hall's Heating And Air | — | (619) 798-8263 | HVAC | Alpine · Alpine County | — | — |
| Heating & Cooling Supply | Heating & Cooling Supply | — | (760) 747-2404 | HVAC | Escondido · Alpine County | — | — |
| Home Service Company HVAC | Home Service Company HVAC | — | (619) 333-7575 | HVAC | Alpine · Alpine County | — | — |
| Maximum Comfort Heating And AC Repair | Maximum Comfort Heating And AC Repair | — | (619) 432-3079 | HVAC | Alpine · Alpine County | — | — |