Citadel Services, Inc., was established in 2003 by three very dedicated individuals with more than 5 decades of experience. Citadel has grown to more than 18 employees, including licensed plumbers, fitters, certified welders, office administrative and warehouse personnel. We are licensed in the following states: NH, NY, PA, CT, NJ, WV, MD, RI, DE, OH and MD/WSSC We specialize in: ...