| Business | Phone |
| Carter Cooling & Heating Inc 512 Pulaski Hwy # B, Joppa 21085 | (410) 679-6366 |
| Environmental Conditioning 1610 Laurel Dr, Joppa 21085 | (410) 676-8800 |
| Fallston Heating & Air Cond 1129 Clayton Rd # B, Joppa 21085 | (410) 679-5645 |
| Royal Air Conditioning & Htg Joppa 21085 | (410) 538-6468 |