| Business | Phone |
| A M Gable Heating & Cooling 104 Dale Rd, Pasadena 21122 | (410) 360-0990 |
| A M Gable Heating & Cooling 8115 Buttercup Ln E, Pasadena 21122 | (410) 544-8553 |
| Air Temp Inc 8352 Schmidts Ln, Pasadena 21122 | (410) 360-2600 |
| Alcap Inc 54 Milburn Cir, Pasadena 21122 | (410) 255-7767 |
| Breeze Energy 1876 Potomac Rd, Pasadena 21122 | (410) 437-4677 |
| Callicoat Electrical Svc 2508 Mountain Rd # C, Pasadena 21122 | (410) 437-6433 |
| Coldstar Heating & Cooling Inc 186 Kenwood Rd, Pasadena 21122 | (410) 255-6322 |
| D & R Heating & Cooling 120 Maryland Ave, Pasadena 21122 | (410) 360-4940 |
| Metropolis Heating & Air Cond 2539 Mountain Rd # B, Pasadena 21122 | (410) 360-6700 |
| Metropolis Heating & Cooling 259 Magothy Bridge Rd, Pasadena 21122 | (410) 647-0606 |
| Metropolize Heating & Cooling 701 Seaborne Ct, Pasadena 21122 | (410) 360-6700 |
| Peninsula Cooling & Heating 1952 Hilltop Rd, Pasadena 21122 | (410) 255-1572 |