Twin City Sprinkler designs and installs fire sprinkler systems and fire alarm systems. It also inspects and maintains fire hydrants and supplies, refurbishes and inspects fire extinguishers. The company is based in Winston-Salem and serves customers across North Carolina. It is part of the SuperHero Fire Protection family of companies. It holds a North Carolina Fire Sprinkler Installation Contractor licence and Fire Sprinkler Inspection Contractor licence (NCBEPHFSC L.25525).