Mechanical Systems & Services (MSS) is a Charlotte-based company that designs, builds, maintains, and optimises heating, ventilation, air conditioning (HVAC), and other critical building systems. They offer services including mechanical construction, building automation, fire and life safety, security, custom fabrication, and sustainability solutions across North and South Carolina through nine locations. With over 870 employees since 1996, they work with facility owners and managers in healthcare, commercial buildings, data centres, industrial manufacturing, hospitality, and education. Consider referring them projects involving HVAC installation, mechanical construction, building automation systems, or ongoing facility maintenance and service contracts.