| Business | Phone |
| Air Conditioning Svc Co 2753 Tola Ave, Altadena 91001 | (626) 798-3649 |
| Fetter Air Conditioning & Htg 3109 Thurin Ave, Altadena 91001 | (626) 794-2167 |
| Smalling Mechanical Co 251 E Las Flores Dr, Altadena 91001 | (626) 798-6828 |
| Windworks Whole-House Fan Co 2062 Santa Rosa Ave, Altadena 91001 | (626) 794-4230 |