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| ACTION AIR CONDITIONING & HEATING | LANGHORNE, PA | (215) 750-6677 |
| AIRTEMP COOLING AND HEATING INC | 504 WYOMING AVE LANGHORNE, PA | (215) 752-4556 |
| ATLAS HEATING & COOLING INC | LANGHORNE, PA | (215) 750-0550 |
| CORESTATES ENVIRONMENTAL SYSTEMS | 3 PICKERING BND LANGHORNE, PA | (215) 741-1400 |
| DICKMAN-SARGEANT ENERGY CORP | LANGHORNE, PA | (215) 757-6801 |
| H J & H MECHANICAL | LANGHORNE, PA | (215) 946-7911 |
| KEN-WAY AIR CONDITIONING | 44 WOOD STREAM DR LANGHORNE, PA | (215) 752-4795 |
| MICHALSKI J R HEATING & AIR CONDITIONING INC | 418 WASHINGTON AVE LANGHORNE, PA | (215) 752-1442 |
| NU-TEMP ASSOCIATES HEATING & COOLING | LANGHORNE, PA | (215) 750-9520 |
| SCOTT AIR CONDITIONING CO INC | LANGHORNE, PA | (215) 750-0416 |
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