Burkholder’s installed my heat pump last summer. They were very attentive and professional. It was during the super busy and hot install season when our old AC unit died and we were fortunate enough that they gave us two powerful window units to use in our house until they could come and install. We are very happy with our quality Carrier heat pump and can now save on oil in the winter. Burkholder’s is honest and I don’t have any complaints about their service or staff. Definitely the best HVAC company in the Lehigh Valley!