Relax in your home with the perfect temperature year-round. F M Berkheimer in Mechanicsburg, Pennsylvania, offers the residential heating and air-conditioning services that keep your home comfortable. Our services include sales, service, and installation. Our Services We provide prompt service at competitive pricing to meet your needs and budget. Moreover, we offer complete service plans to keep your systems operating at peak efficiency. Contact us to receive more information about our service plans and prices. Count on our experience to provide you with a system and solution that fits your unique needs. Typically, we ask questions to make sure we offer what you need and want. This is all part of our tradition of service that assures your complete satisfaction. About Us Our family-owned-and-operated company was established in 1950 to offer the best possible service for you and your family. Through the years we have become a leader in our community, with customer testimonials to prove it. As a carrier dealer we handle top notch equipment with fantastic warranties. Our company is also a Puron® refrigerant and indoor air-quality specialist.