SGI Heating and Cooling

SGI Heating and Cooling is a leading service provider of HVAC services for Michigan and Ohio residents. Headquartered in Flint, MI, our installation and service technicians handle furnaces, air … SGI Heating and Cooling is a leading service provider of HVAC services for Michigan and Ohio residents. Headquartered in Flint, MI, our installation and service technicians handle furnaces, air conditioning, generators, hybrid geo-thermal systems and more.