Mechanical services in Carterville, Illinois

HSG Mechanical Contractors, INC. is a general contractor located at 7689 Gunners Lane, Carterville, Illinois, United States. Specializing in commercial full-service mechanical solutions, HSG offers design/build services for refrigeration and HVAC needs. With a leadership team boasting over 50 years of technical service experience and 25 years of project management by a mechanical engineer, HSG provides turnkey solutions to its customers. All technicians are U.A. fully commercial plumber/pipefitter craftsmen, ensuring high-quality work. As a Mitsubishi Diamond-Star VRF contractor, HSG offers a 10-year parts warranty on VRF systems, including labor for the first two years. The institution is a licensed Illinois plumbing contractor and a member of the Illinois Procurement Gateway for Small Businesses. HSG also has two CCCDI’s for backflow-preventer devices, providing customers with reliable and dependable results.