Serving DC, Maryland, and Virginia with Construction Cleaning, Staffing, and Interior & Selective Demolition Services. Women-Minority Owned SBE, MDOT, SWAM, MBE, DBE, MWAA LDBE We help General Contractors get organized during the construction process, so they have a safe place to perform their work. CCS also supplies necessary labor for small projects, assists with interior demolition, and detailed cleaning before the new building or renovation is turned over to the owner.