| Business | Phone |
| Accu Air 1417 W Chew St, Allentown 18102 | (484) 223-1855 |
| Bowen Supply Co Inc 1313 W Linden St, Allentown 18102 | (610) 433-5940 |
| Brent Kincaid Hvac Allentown 18103 | (610) 440-0199 |
| Climate Specialists 425 Business Park Ln, Allentown 18109 | (610) 437-0503 |
| Comfort Zone Heating & Cooling 61 Yeats Run, Allentown 18103 | (610) 502-1669 |
| Curtis Total Svc 1415 E Pennsylvania St, Allentown 18109 | (610) 770-9045 |
| Dottery's Heating & Air Cond 1930 W Allen St, Allentown 18104 | (610) 351-6025 |
| Dual Temp Co Inc 2050 S 12th St, Allentown 18103 | (610) 791-9100 |
| Dynamic Heating Air Cond Inc 316 N Madison St, Allentown 18102 | (610) 435-5547 |
| Frisch Mechanical Allentown 18102 | (610) 435-5099 |
| Guy Drewicz Of York Intl 1620 W Hamilton St, Allentown 18102 | (610) 831-0883 |
| H T Lyons Inc 7165 Ambassador Dr, Allentown 18106 | (610) 530-2600 |
| Hannabery Hvac 200 Schantz Rd, Allentown 18104 | (610) 366-9400 |
| Howard Refrigeration & Air Co 1124 Sherman St, Allentown 18109 | (610) 434-3877 |
| Inc Conditioning 1930 W Allen St, Allentown 18104 | (610) 351-6100 |
| Jack Lehr Electric Inc 2841 W Emmaus Ave, Allentown 18103 | (610) 797-5347 |
| Jimmy's Air Conditioning 1000 Treeline Dr, Allentown 18103 | (610) 395-2299 |
| Lehigh Valley Heating Svc 206 S Carlisle St, Allentown 18109 | (610) 439-1053 |
| Maitz Home Svc 354 W Susquehanna St, Allentown 18103 | (610) 866-4070 |
| Mbihvac Inc 450 Business Park Ln, Allentown 18109 | (610) 821-9555 |
| Peace Of Mind Maintenance Allentown 18102 | (610) 435-9909 |
| Valley Aire 820 N Glenwood St, Allentown 18104 | (610) 435-5358 |
| Van's Duct Svc 835 N Meadow St, Allentown 18102 | (610) 261-0630 |
| Van's Heating & Cooling Allentown 18102 | (610) 760-2070 |
| W & Bhvac Svc 1532 N 27th St, Allentown 18104 | (610) 433-8840 |
| Weaver Fuels 1008 Sumner Ave, Allentown 18102 | (610) 435-9657 |
| Werley Heating & Air Cond Co 1227 W Liberty St # 101, Allentown 18102 | (610) 821-8414 |
| R & R Svc 420 S Leh St, Allentown 18104 | (610) 433-8362 |
| R E Michel Co 929 E Highland St, Allentown 18109 | (610) 434-6054 |