David White Services has been providing heating repair for residents of Lancaster and Fairfield County since 1977. We’re a family-owned and operated business that works hard to provide our customers with excellent and timely furnace service. Our courteous technicians have the knowledge and tools to handle all your heating system needs. We have many repeat customers here in Lancaster, and we hope you’ll turn to us the next time you need service from an HVAC company with an A+ BBB rating.