Where to start....Working with Ressler and Mateer was so refreshing. We needed to replace our existing Heat Pump system. We were able to purchase a name brand system, Carrier, 17 seer two stage vs 14 seer at half the price of our other quotes. The system is so quiet. Our technician, Chris was so knowledgeable, the system was in and working before lunch. Well done. — John Sauer - Lititz, PA