| Business | Phone |
| Air Care Refrigeration Corp 835 W Touhy Ave, Park Ridge 60068 | (847) 292-0515 |
| American Maintenance Systems 404 N Northwest Hwy, Park Ridge 60068 | (847) 823-3693 |
| Energy Heating & Cooling Inc 501 Parkwood Ave, Park Ridge 60068 | (847) 698-1440 |
| Dura Heating & Cooling 2401 N De Cook Ct, Park Ridge 60068 | (847) 825-2125 |