Hours: Twin City Security Houston serves commercial buildings, luxury condo suites, airports, hotels, hospitals, residential communities, government, school and industrial facilities. It provides 24-hour emergency response solutions, such as fire, first aid and continuous asset monitoring. Twin City Security Houston's client list includes Hilton Hotels Corporation, FedEx and BAE Systems. In addition, the company offers armed and unarmed security services for special events. Twin City Security Houston provides vehicle patrol and in-house proprietary solutions. The company offers assistance with the enforcement of life safety codes and the emergency evacuation of buildings.