David White Services was started by David White in 1977. Originally a Westinghouse appliance repairman in Harrisburg, PA, David moved his family to southeastern Ohio and discovered a need in heating and cooling. For over 35 years he has poured himself into helping people save money all while making their homes even more comfortable. In addition to heating and cooling equipment and services, we sell fireplaces, woodstoves, whole house generators, attic insulation, and duct cleaning services.