| Business | Phone |
| Bi-State Heating & Air Cond 65 Park Ave, Hillsdale 7642 | (201) 358-6005 |
| C & C Svc Inc 36 Lake St, Hillsdale 7642 | (201) 664-3776 |
| Vital Air Systems Inc 155 Dwight Ave, Hillsdale 7642 | (201) 594-9995 |
| Aa-Rj Air Conditioning 226 Liberty Ave, Hillsdale 7642 | (201) 943-8619 |