Oak Grove Heating and Air Conditioning, Inc. is a locally owned company serving Hattiesburg, Petal, Sumrall, Oak Grove and the surrounding area with quality products and services since 1978. Our goal has always been to provide our customers with the verybest value in services and products available. We engage in residential and commerical sales, service and maintenance programs. We install, maintain and service a wide range of brands and types of equipment. We are also Air Quality Specialists.