Home › Top 4 Heating and Cooling Services in Palmyra, Pennsylvania Find best Heating and Cooling Services in Palmyra, Pennsylvania, with all necessary contact information, including addresses, phone numbers, working hours, map locations, and website links. Terry E Gingrich & Sons HVAC & Water Heaters US, Palmyra, PA 1707811 Carriage Rd Delta T PHC US, Palmyra, PA 17078320 Plaza Dr N.S. Johnson, Inc US, Palmyra, PA 17078710 E High St ECS Comfort Heating & Cooling US, Palmyra, PA 1707833 E Main St