In business since 1991, QSI continues to provide flexible, cost effective Hotel, Commercial Kitchen,  Floors (Marble), Carpet and Facility maintenance  programs/work packages in the DC/Baltimore metropolitan area.  

QSI's focuses on solid long term relationships,  with an emphasis on integrity, quality workmanship, and the use of the latest technolgical advancements in facility care, has earned us the reputation as the company to use when consistant quality servicing  is required. Quantum's forte is working with clients to both save money while elevating the quality of the area.  The average duration of our "yearly" contracts is 11 years (and counting), with many clients still with us from  our inceptoin.

Professional carpet extraction, using allergen-killing steam cleaning and brush systems from our state-of-the art Van/Shampooing system is also available on a project or contractual basis.  Marble restoration, commercial kitchen cleaning, carpet shampooing to overall janitorial services. AT QUANTUM, we also offer full support and consulting services to facilities managers, architects, building contracting, hoteliers, and interior designers. We equally provide residential properties and large scale homes with the same services. 

Quantum is an environmentally friendly company and is in the process of migrating to the use of green products and procedures. In addition to normal chemcials, we use a full line of Green Seal certified chemicals, paper, green liners, soap and many other certified chemicals. We are diligent with following and interacting with our clients' recycling programs.