Janitorial services in Silver Spring refer to cleaning the interior or exterior of buildings, structures or dwellings, industrial or personal, commercial or income-producing real property, or the contents thereof. These services are generally provided by the janitors in the regular course of duty, and may be rendered alone or in conjunction with other services in Silver Spring. Janitorial services are generally offered in exchange of specific charges. The charges may vary amongst the service providers, according to the nature of the job, the time of activity & location as well as season. There are several agencies in Silver Spring that provide janitorial services.